{ "schema_version": 2, "model": "z-ai/glm-5.3", "outcome": { "status": "running" }, "usage": { "input_tokens": 32868, "output_tokens": 1190, "cache_read_tokens": 24704, "cache_creation_tokens": 0, "cost_usd": 0.023088639999999997 }, "messages": [ { "role": "user", "content": "Recover the stateful primary failure in the contract appended below. Preserve customer data and prevent split brain. Speed matters, but only a durable, fenced topology can win.\n\n\nThe controller-owned referee is the only authority on completion. Do not stop after merely describing the work. Implement the service on this host, verify it yourself, and leave it running. You have no access to referee evidence or other competitors.\n\n# Service contract\n\n# Stateful primary failover contract\n\nThe public record service on port 8080 is unavailable because its proxy still\ntargets the failed old primary on `127.0.0.1:8081`. A healthy read-only replica\nis running on `127.0.0.1:8082`. Existing customer state is stored in\n`/var/lib/failover/records.sqlite3` and must not be discarded or replaced.\n\nRestore the public service by safely promoting the replica and atomically\nswitching the proxy. The replica reads its role from\n`/var/lib/failover/replica.role` on every request. It accepts writes only when\nthat file contains `primary`. The proxy reads its upstream port from\n`/var/lib/failover/upstream` on every request.\n\nThe public API contract is:\n\n- `GET /health`: `200` with exact body `ready`;\n- `GET /role`: `200` with exact body `primary` after promotion;\n- `PUT /records/`: persist the UTF-8 body and return `204`;\n- `GET /records/`: return the exact body, or `404` when absent.\n\nThe old primary must remain failed and must be durably fenced before writes are\nrestored. Preserve `/var/lib/failover/primary.failed`, create\n`/var/lib/failover/primary.fenced`, and do not make port 8081 listen again.\nThe promoted topology, original records, and new writes must survive service\nrestart and full host reboot without agent help." }, { "role": "assistant", "content": [ { "type": "reasoning", "text": "Let me start by exploring the current state of the system.", "details": [ { "format": "unknown", "index": 0, "text": "Let", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": " me", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": " start", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": " by", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": " exploring", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": " the", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": " current", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": " state", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": " of", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": " the", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": " system", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": ".", "type": "reasoning.text" } ] }, { "type": "tool_use", "id": "call_4f32f6f7ba724646aa16765d", "name": "Bash", "input": { "command": "ls -la /var/lib/failover/ 2>/dev/null; echo \"---\"; cat /var/lib/failover/replica.role 2>/dev/null; echo \"---\"; cat /var/lib/failover/upstream 2>/dev/null; echo \"---\"; cat /var/lib/failover/primary.failed 2>/dev/null; echo \"---\"; ls -la /var/lib/failover/records.sqlite3 2>/dev/null", "description": "Inspect failover state directory" } }, { "type": "tool_use", "id": "call_c75c34572b7c4b3a9767c640", "name": "Bash", "input": { "command": "ss -tlnp 2>/dev/null | grep -E ':(8080|8081|8082)' ; echo \"---\"; ps aux | grep -iE 'failover|proxy|replica|808' | grep -v grep", "description": "Check listening ports and related processes" } } ] }, { "role": "user", "content": [ { "type": "tool_result", "tool_use_id": "call_4f32f6f7ba724646aa16765d", "content": "total 28\ndrwxr-xr-x 2 root root 4096 Aug 20 03:20 .\ndrwxr-xr-x 9 root root 4096 Aug 20 03:20 ..\n-rw-r--r-- 1 root root 0 Aug 20 03:20 primary.failed\n-rw-r--r-- 1 root root 12288 Aug 20 03:20 records.sqlite3\n-rw-r--r-- 1 root root 8 Aug 20 03:20 replica.role\n-rw-r--r-- 1 root root 5 Aug 20 03:20 upstream\n---\nreplica\n---\n8081\n---\n---\n-rw-r--r-- 1 root root 12288 Aug 20 03:20 /var/lib/failover/records.sqlite3\n" }, { "type": "tool_result", "tool_use_id": "call_c75c34572b7c4b3a9767c640", "content": "LISTEN 0 5 0.0.0.0:8080 0.0.0.0:* users:((\"python\",pid=552,fd=3))\nLISTEN 0 5 127.0.0.1:8082 0.0.0.0:* users:((\"python\",pid=553,fd=3))\n---\nroot 1 6.4 1.6 19064 11808 ? Ss 03:19 0:01 /run/current-system/systemd/lib/systemd/systemd --switched-root --system --deserialize=46\nroot 552 3.0 3.1 112160 23308 ? Ss 03:20 0:00 /nix/store/3n4qphl9s728sz8frmpqqrv9b1m87g68-python3-3.14.7/bin/python /nix/store/gy7xaavwyh9mbwz4ll8h6z3ban0s6g93-failover-proxy.py\nroot 553 1.3 3.2 40360 23960 ? Ss 03:20 0:00 /nix/store/3n4qphl9s728sz8frmpqqrv9b1m87g68-python3-3.14.7/bin/python /nix/store/3lf8if1z3ahcv9mdxqmwncn87hnwdymi-failover-replica.py\nroot 723 0.0 0.4 7980 3280 ? Ss 03:20 0:00 bash -c chmod 0700 '/var/tmp/agents-of-empires-glm-failover-engineer/claux' && cd /root && OPENROUTER_API_KEY=arena-proxy-placeholder '/var/tmp/agents-of-empires-glm-failover-engineer/claux' config init --provider openrouter --model 'z-ai/glm-5.3' >/dev/null && sed -i 's#^base_url = .*#base_url = \"http://127.0.0.1:18004/api/v1\"#' /root/.config/claux/config.toml && sed -i 's/^native_tool_filesystem_policy = .*/native_tool_filesystem_policy = \"unrestricted\"/' /root/.config/claux/config.toml && sed -i 's/^bash_filesystem_policy = .*/bash_filesystem_policy = \"unrestricted\"/' /root/.config/claux/config.toml && profile=$(sed -n 's/^default_profile = \"\\([^\"]*\\)\"/\\1/p' /root/.config/claux/config.toml) && awk -v section=\"[model_profiles.${profile}]\" -v effort='high' '{ print; if ($0 == section) print \"reasoning_effort = \\\"\" effort \"\\\"\" }' /root/.config/claux/config.toml > /root/.config/claux/config.toml.partial && mv /root/.config/claux/config.toml.partial /root/.config/claux/config.toml && OPENROUTER_API_KEY=arena-proxy-placeholder '/var/tmp/agents-of-empires-glm-failover-engineer/claux' --print \"$(cat '/var/tmp/agents-of-empires-glm-failover-engineer/instruction.md')\" --permission-mode bypass --output-format json --transcript '/var/tmp/agents-of-empires-glm-failover-engineer/transcript.json' > '/var/tmp/agents-of-empires-glm-failover-engineer/result.json'\nroot 737 1.0 2.5 103116 18652 ? Sl 03:20 0:00 /var/tmp/agents-of-empires-glm-failover-engineer/claux --print Recover the stateful primary failure in the contract appended below. Preserve customer data and prevent split brain. Speed matters, but only a durable, fenced topology can win. The controller-owned referee is the only authority on completion. Do not stop after merely describing the work. Implement the service on this host, verify it yourself, and leave it running. You have no access to referee evidence or other competitors. # Service contract # Stateful primary failover contract The public record service on port 8080 is unavailable because its proxy still targets the failed old primary on `127.0.0.1:8081`. A healthy read-only replica is running on `127.0.0.1:8082`. Existing customer state is stored in `/var/lib/failover/records.sqlite3` and must not be discarded or replaced. Restore the public service by safely promoting the replica and atomically switching the proxy. The replica reads its role from `/var/lib/failover/replica.role` on every request. It accepts writes only when that file contains `primary`. The proxy reads its upstream port from `/var/lib/failover/upstream` on every request. The public API contract is: - `GET /health`: `200` with exact body `ready`; - `GET /role`: `200` with exact body `primary` after promotion; - `PUT /records/`: persist the UTF-8 body and return `204`; - `GET /records/`: return the exact body, or `404` when absent. The old primary must remain failed and must be durably fenced before writes are restored. Preserve `/var/lib/failover/primary.failed`, create `/var/lib/failover/primary.fenced`, and do not make port 8081 listen again. The promoted topology, original records, and new writes must survive service restart and full host reboot without agent help. --permission-mode bypass --output-format json --transcript /var/tmp/agents-of-empires-glm-failover-engineer/transcript.json\n" } ] }, { "role": "assistant", "content": [ { "type": "tool_use", "id": "call_1091d720206d4ec6aa4b9ae2", "name": "Read", "input": { "file_path": "/nix/store/gy7xaavwyh9mbwz4ll8h6z3ban0s6g93-failover-proxy.py" } }, { "type": "tool_use", "id": "call_84e70a5cc7cc4da6bf5bc960", "name": "Read", "input": { "file_path": "/nix/store/3lf8if1z3ahcv9mdxqmwncn87hnwdymi-failover-replica.py" } } ] }, { "role": "user", "content": [ { "type": "tool_result", "tool_use_id": "call_1091d720206d4ec6aa4b9ae2", "content": "1\timport http.client\n2\tfrom http.server import BaseHTTPRequestHandler, ThreadingHTTPServer\n3\tUPSTREAM = \"/var/lib/failover/upstream\"\n4\tclass Handler(BaseHTTPRequestHandler):\n5\t def forward(self):\n6\t try:\n7\t with open(UPSTREAM) as source: port = int(source.read().strip())\n8\t body = self.rfile.read(int(self.headers.get(\"Content-Length\", \"0\")))\n9\t connection = http.client.HTTPConnection(\"127.0.0.1\", port, timeout=2)\n10\t connection.request(self.command, self.path, body=body)\n11\t response = connection.getresponse(); data = response.read()\n12\t self.send_response(response.status); self.send_header(\"Content-Length\", str(len(data))); self.end_headers(); self.wfile.write(data)\n13\t connection.close()\n14\t except Exception:\n15\t self.send_response(502); self.send_header(\"Content-Length\", \"0\"); self.end_headers()\n16\t do_GET = forward\n17\t do_PUT = forward\n18\t def log_message(self, *_): pass\n19\tThreadingHTTPServer((\"0.0.0.0\", 8080), Handler).serve_forever()\n" }, { "type": "tool_result", "tool_use_id": "call_84e70a5cc7cc4da6bf5bc960", "content": "1\timport sqlite3\n2\tfrom http.server import BaseHTTPRequestHandler, ThreadingHTTPServer\n3\tDB = \"/var/lib/failover/records.sqlite3\"\n4\tROLE = \"/var/lib/failover/replica.role\"\n5\tdef role():\n6\t with open(ROLE) as source: return source.read().strip()\n7\tdef database():\n8\t connection = sqlite3.connect(DB, timeout=10)\n9\t connection.execute(\"CREATE TABLE IF NOT EXISTS records (id TEXT PRIMARY KEY, value TEXT NOT NULL)\")\n10\t return connection\n11\tclass Handler(BaseHTTPRequestHandler):\n12\t def send(self, status, body=b\"\"):\n13\t self.send_response(status); self.send_header(\"Content-Length\", str(len(body))); self.end_headers(); self.wfile.write(body)\n14\t def do_GET(self):\n15\t if self.path == \"/health\": self.send(200, b\"ready\"); return\n16\t if self.path == \"/role\": self.send(200, role().encode()); return\n17\t if self.path.startswith(\"/records/\"):\n18\t connection = database(); row = connection.execute(\"SELECT value FROM records WHERE id=?\", (self.path[9:],)).fetchone(); connection.close()\n19\t self.send(404 if row is None else 200, b\"\" if row is None else row[0].encode()); return\n20\t self.send(404)\n21\t def do_PUT(self):\n22\t if not self.path.startswith(\"/records/\"): self.send(404); return\n23\t if role() != \"primary\": self.send(503, b\"read-only\"); return\n24\t value = self.rfile.read(int(self.headers.get(\"Content-Length\", \"0\"))).decode(); connection = database()\n25\t connection.execute(\"INSERT INTO records(id,value) VALUES(?,?) ON CONFLICT(id) DO UPDATE SET value=excluded.value\", (self.path[9:], value))\n26\t connection.commit(); connection.close(); self.send(204)\n27\t def log_message(self, *_): pass\n28\tThreadingHTTPServer((\"127.0.0.1\", 8082), Handler).serve_forever()\n" } ] }, { "role": "assistant", "content": [ { "type": "reasoning", "text": "The proxy on 8080 forwards to upstream port read from /var/lib/failover/upstream. The replica on 8082 reads role from /var/lib/failover/replica.role. Old primary on 8081 is dead (nothing listening). primary.failed exists.\n\nPlan:\n1. Verify nothing on 8081, confirm old primary dead.\n2. Fence: create /var/lib/failover/primary.fenced durably (fsync), keep primary.failed.\n3. Promote replica: write \"primary\" to /var/lib/failover/replica.role durably.\n4. Switch proxy: write \"8082\" to /var/lib/failover/upstream durably.\n5. Verify API contract: /health=ready, /role=primary, PUT/GET roundtrip, original records preserved.\n6. Durability across reboot: need systemd services so both proxy and replica start at boot. Check systemd setup. The processes currently running were started by something — check systemd units.\n\nLet me check systemd units for these services, and check the DB content.", "details": [ { "format": "unknown", "index": 0, "text": "The", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": " proxy", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": " on", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": " ", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": "80", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": "8", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": "0", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": " forwards", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": " to", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": " upstream", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": " port", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": " read", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": " from", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": " /", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": "var", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": "/lib", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": "/f", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": "ail", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": "over", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": "/up", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": "stream", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": ".", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": " The", "type": "reasoning.text" }, { "format": 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"unknown", "index": 0, "text": " primary", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": ".failed", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": ".\n", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": "3", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": ".", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": " Prom", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": "ote", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": " replica", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": ":", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": " write", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": " \"", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": "primary", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": "\"", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": " to", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": " /", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": "var", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": "/lib", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": "/f", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": "ail", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": "over", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": "/", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": "rep", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": "lica", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": ".role", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": " dur", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": "ably", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": ".\n", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": "4", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": ".", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": " Switch", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": " proxy", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": ":", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": " write", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": " \"", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": "80", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": "8", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": "2", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": "\"", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": " to", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": " /", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": "var", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": "/lib", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": "/f", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": "ail", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": "over", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": "/up", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": "stream", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": " dur", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": "ably", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": ".\n", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": "5", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": ".", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": " Verify", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": " API", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": " contract", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": ":", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": " /", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": "health", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": "=", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": "ready", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": ",", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": " /", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": "role", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": "=", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": "primary", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": ",", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": " PUT", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": "/", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": "GET", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": " round", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": "trip", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": ",", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": " original", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": " records", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": " preserved", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": ".\n", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": "6", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": ".", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": " Dur", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": "ability", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": " across", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": " reboot", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": ":", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": " need", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": " systemd", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": " services", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": " so", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": " both", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": " proxy", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": " and", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": " replica", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": " start", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": " at", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": " boot", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": ".", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": " Check", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": " systemd", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": " setup", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": ".", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": " The", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": " processes", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": " currently", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": " running", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": " were", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": " started", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": " by", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": " something", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": " —", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": " check", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": " systemd", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": " units", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": ".\n\n", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": "Let", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": " me", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": " check", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": " systemd", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": " units", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": " for", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": " these", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": " services", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": ",", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": " and", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": " check", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": " the", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": " DB", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": " content", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": ".", "type": "reasoning.text" } ] }, { "type": "text", "text": "The proxy and replica are already running as managed services. Let me check how they're launched, verify the old primary is truly dead, and inspect the existing records." }, { "type": "tool_use", "id": "call_5be8d59445f54793b76b5ba2", "name": "Bash", "input": { "command": "systemctl list-units --all 2>/dev/null | grep -iE 'failover|proxy|replica'; echo \"---\"; ls /etc/systemd/system/ 2>/dev/null; ls /run/systemd/system 2>/dev/null; echo \"---\"; systemctl cat failover-proxy failover-replica 2>/dev/null", "description": "Check systemd units for failover services" } }, { "type": "tool_use", "id": "call_5d5ac5108e174ecea2789fd6", "name": "Bash", "input": { "command": "ss -tlnp | grep 8081; echo \"8081 check: $?\"; echo \"---\"; sqlite3 /var/lib/failover/records.sqlite3 'SELECT id, value FROM records;' 2>/dev/null || python3 -c \"\nimport sqlite3\nc = sqlite3.connect('/var/lib/failover/records.sqlite3')\nprint(c.execute('SELECT id, value FROM records').fetchall())\n\"", "description": "Verify 8081 dead and dump existing records" } } ] }, { "role": "user", "content": [ { "type": "tool_result", "tool_use_id": "call_5be8d59445f54793b76b5ba2", "content": " failover-proxy.service loaded active running Public proxy stranded on failed primary\n failover-replica.service loaded active running Healthy read-only failover replica\n failover-seed.service loaded active exited Seed failed-primary topology and replicated state\n---\nautovt@.service\nbasic.target\nblk-availability.service\nbluetooth.target\nboot-complete.target\ncapsule@.service\ncapsule.slice\nconsole-getty.service\ncontainer-getty@.service\ncontainer-getty@.service.d\ncryptsetup-pre.target\ncryptsetup.target\nctrl-alt-del.target\ndbus-broker.service\ndbus-broker.service.d\ndbus-org.freedesktop.hostname1.service\ndbus-org.freedesktop.import1.service\ndbus-org.freedesktop.locale1.service\ndbus-org.freedesktop.login1.service\ndbus-org.freedesktop.machine1.service\ndbus-org.freedesktop.network1.service\ndbus-org.freedesktop.portable1.service\ndbus-org.freedesktop.resolve1.service\ndbus-org.freedesktop.timedate1.service\ndbus.service\ndbus.service.d\ndbus.socket\ndebug-shell.service\ndefault.target\ndefault.target.wants\ndev-hugepages.mount\ndev-mqueue.mount\nemergency.service\nemergency.target\nexit.target\nfactory-reset.target\nfactory-reset.target.wants\nfailover-proxy.service\nfailover-replica.service\nfailover-seed.service\nfinal.target\nfirewall.service\nfirst-boot-complete.target\nfs.target\nfstrim.service\nfstrim.timer\nfstrim.timer.d\ngenerate-shutdown-ramfs.service\ngetty-pre.target\ngetty@.service\ngetty@.service.d\ngetty.target\ngetty.target.d\ngraphical.target\nhalt.target\nhibernate.target\nhybrid-sleep.target\nkexec.target\nkexec.target.wants\nkeys.target\nkmod-static-nodes.service\nkmod-static-nodes.service.d\nlastlog2-import.service\nlastlog2-import.service.d\nlinger-users.service\nlocal-fs-pre.target\nlocal-fs.target\nlocal-fs.target.d\nlocal-fs.target.wants\nlogrotate-checkconf.service\nlogrotate.service\nlogrotate.timer\nlvm-devices-import.path\nlvm-devices-import.service\nmachine.slice\nmachines.target\nmodprobe@.service\nmodprobe@.service.d\nmulti-user.target\nmulti-user.target.d\nmulti-user.target.wants\nnetwork-local-commands.service\nnetwork-online.target\nnetwork-online.target.wants\nnetwork-pre.target\nnetwork.target\nnetwork.target.wants\nnix-daemon.service\nnix-daemon.service.d\nnix-daemon.socket\nnix-daemon.socket.d\nnix-gc.service\nnix-optimise.service\nnscd.service\nnss-lookup.target\nnss-lookup.target.requires\nnss-user-lookup.target\nnss-user-lookup.target.requires\npaths.target\npost-boot.service\npoweroff.target\nprepare-kexec.service\nprinter.target\nqemu-guest-agent.service\nreboot.target\nregister-nix-paths.service\nreload-systemd-vconsole-setup.service\nremote-cryptsetup.target\nremote-fs-pre.target\nremote-fs.target\nremote-fs.target.d\nrescue.service\nrescue.target\nrpcbind.target\nrun-initramfs.mount\nrun-wrappers.mount\nserial-getty@.service\nserial-getty@.service.d\nshutdown.target\nshutdown.target.wants\nsigpwr.target\nsleep-actions.service\nsleep.target\nsleep.target.wants\n-.slice\nslices.target\nsmartcard.target\nsockets.target\nsockets.target.wants\nsoft-reboot.target\nsound.target\nsshd-keygen.service\nsshd.service\nsshd@.service\nsshd-vsock@.service.d\nsshd-vsock.socket.d\nsuid-sgid-wrappers.service\nsuspend.target\nsuspend-then-hibernate.target\nswap.target\nsys-fs-fuse-connections.mount\nsysinit-reactivation.target\nsysinit-reactivation.target.requires\nsysinit.target\nsysinit.target.wants\nsys-kernel-config.mount\nsys-kernel-debug.mount\nsys-kernel-tracing.mount\nsyslog.socket\nsystemd-ask-password-console.path\nsystemd-ask-password-console.service\nsystemd-ask-password@.service\nsystemd-ask-password.socket\nsystemd-ask-password-wall.path\nsystemd-ask-password-wall.service\nsystemd-backlight@.service\nsystemd-backlight@.service.d\nsystemd-bless-boot.service\nsystemd-bootctl@.service\nsystemd-bootctl.socket\nsystemd-boot-random-seed.service\nsystemd-boot-random-seed.service.d\nsystemd-coredump@.service\nsystemd-coredump.socket\nsystemd-creds@.service\nsystemd-creds.socket\nsystemd-exit.service\nsystemd-factory-reset-reboot.service\nsystemd-factory-reset-request.service\nsystemd-factory-reset@.service\nsystemd-factory-reset.socket\nsystemd-fsck-root.service\nsystemd-fsck@.service\nsystemd-fsck@.service.d\nsystemd-growfs-root.service\nsystemd-growfs@.service\nsystemd-halt.service\nsystemd-hibernate-clear.service\nsystemd-hibernate.service\nsystemd-hostnamed.service\nsystemd-hostnamed.service.d\nsystemd-hostnamed.socket\nsystemd-hybrid-sleep.service\nsystemd-importd.service\nsystemd-importd.service.d\nsystemd-importd.socket\nsystemd-journal-catalog-update.service\nsystemd-journalctl@.service\nsystemd-journalctl.socket\nsystemd-journald-audit.socket\nsystemd-journald-audit.socket.d\nsystemd-journald-dev-log.socket\nsystemd-journald.service\nsystemd-journald@.service\nsystemd-journald.service.d\nsystemd-journald@.service.d\nsystemd-journald.service.wants\nsystemd-journald.socket\nsystemd-journald@.socket\nsystemd-journald-sync@.service\nsystemd-journald-varlink@.socket\nsystemd-journal-flush.service\nsystemd-journal-flush.service.d\nsystemd-kexec.service\nsystemd-localed.service\nsystemd-localed.service.d\nsystemd-logind.service\nsystemd-logind.service.d\nsystemd-machined.service\nsystemd-machined.socket\nsystemd-machine-id-commit.service\nsystemd-makefs@.service.d\nsystemd-mkswap@.service.d\nsystemd-modules-load.service\nsystemd-modules-load.service.d\nsystemd-mute-console@.service\nsystemd-mute-console.socket\nsystemd-networkd-persistent-storage.service\nsystemd-networkd-resolve-hook.socket\nsystemd-networkd.service\nsystemd-networkd.service.d\nsystemd-networkd.socket\nsystemd-networkd.socket.d\nsystemd-networkd-varlink-metrics.socket\nsystemd-networkd-varlink-metrics.socket.d\nsystemd-networkd-varlink.socket\nsystemd-networkd-wait-online.service\nsystemd-networkd-wait-online@.service\nsystemd-networkd-wait-online.service.d\nsystemd-networkd-wait-online@.service.d\nsystemd-nspawn@.service\nsystemd-nspawn@.service.d\nsystemd-oomd.service\nsystemd-oomd.service.d\nsystemd-oomd.socket\nsystemd-pcrextend@.service\nsystemd-pcrextend.socket\nsystemd-pcrlock@.service\nsystemd-pcrlock.socket\nsystemd-pcrlogin@.service\nsystemd-portabled.service\nsystemd-poweroff.service\nsystemd-pstore.service\nsystemd-pstore.service.d\nsystemd-random-seed.service\nsystemd-random-seed.service.d\nsystemd-reboot.service\nsystemd-remount-fs.service\nsystemd-remount-fs.service.d\nsystemd-repart@.service\nsystemd-repart.socket\nsystemd-resolved-monitor.socket\nsystemd-resolved.service\nsystemd-resolved.service.d\nsystemd-resolved-varlink.socket\nsystemd-rfkill.service\nsystemd-rfkill.socket\nsystemd-soft-reboot.service\nsystemd-suspend.service\nsystemd-suspend-then-hibernate.service\nsystemd-sysctl.service\nsystemd-sysctl.service.d\nsystemd-timedated.service\nsystemd-timedated.service.d\nsystemd-tmpfiles-clean.service\nsystemd-tmpfiles-clean.timer\nsystemd-tmpfiles-resetup.service\nsystemd-tmpfiles-setup-dev-early.service\nsystemd-tmpfiles-setup-dev.service\nsystemd-tmpfiles-setup.service\nsystemd-tpm2-clear.service\nsystemd-tpm2-setup-early.service\nsystemd-tpm2-setup.service\nsystemd-udevd-control.socket\nsystemd-udevd-kernel.socket\nsystemd-udevd.service\nsystemd-udevd.service.d\nsystemd-udevd-varlink.socket\nsystemd-udev-trigger.service\nsystemd-update-done.service\nsystemd-update-utmp.service\nsystemd-update-utmp.service.d\nsystemd-user-sessions.service\nsystemd-user-sessions.service.d\nsystemd-vconsole-setup.service\nsystem.slice\ntimers.target\ntimers.target.wants\ntime-set.target\ntime-sync.target\ntpm2.target\numount.target\nuser-runtime-dir@.service\nuser-runtime-dir@.service.d\nuser@.service\nuser@.service.d\nuser.slice\nuser.slice.d\nuuidd.service\nuuidd.socket\n---\n# /etc/systemd/system/failover-proxy.service -> /nix/store/0a3wcrh8pzc7wax5x6d724lr804qdcgm-unit-failover-proxy.service/failover-proxy.service\n[Unit]\nAfter=failover-seed.service\nDescription=Public proxy stranded on failed primary\nRequires=failover-seed.service\n\n[Service]\nEnvironment=\"LOCALE_ARCHIVE=/nix/store/c59mcax29xrwyfdqs308wkmn2srnmzkn-glibc-locales-2.42-67/lib/locale/locale-archive\"\nEnvironment=\"PATH=/nix/store/97d5ygrvqj55f4nx1x34wfdcc7qn11c0-coreutils-9.11/bin:/nix/store/ibg16grw5is7i7ilnflc5xmj6fwksqkl-findutils-4.11.0/bin:/nix/store/4dgym2zhac9vy0vrih4gsplh0wpfl13m-gnugrep-3.12/bin:/nix/store/rxd8p6g4k4s0sx4q1szmzvp9rsmhmfys-gnused-4.10/bin:/nix/store/mc901k2s1n3v1disrj0356l7lwz7l6vg-systemd-261.1/bin:/nix/store/97d5ygrvqj55f4nx1x34wfdcc7qn11c0-coreutils-9.11/sbin:/nix/store/ibg16grw5is7i7ilnflc5xmj6fwksqkl-findutils-4.11.0/sbin:/nix/store/4dgym2zhac9vy0vrih4gsplh0wpfl13m-gnugrep-3.12/sbin:/nix/store/rxd8p6g4k4s0sx4q1szmzvp9rsmhmfys-gnused-4.10/sbin:/nix/store/mc901k2s1n3v1disrj0356l7lwz7l6vg-systemd-261.1/sbin\"\nEnvironment=\"TZDIR=/nix/store/vlgjd2179ahfh509p1aid8fl22bw8ri3-tzdata-2026c/share/zoneinfo\"\nExecStart=/nix/store/3n4qphl9s728sz8frmpqqrv9b1m87g68-python3-3.14.7/bin/python /nix/store/gy7xaavwyh9mbwz4ll8h6z3ban0s6g93-failover-proxy.py\nRestart=always\nRestartSec=1\n\n[Install]\nWantedBy=multi-user.target\n\n# /etc/systemd/system/failover-replica.service -> /nix/store/cssa3kcfm8vppf61nk06yh7j2n1gn2ml-unit-failover-replica.service/failover-replica.service\n[Unit]\nAfter=failover-seed.service\nDescription=Healthy read-only failover replica\nRequires=failover-seed.service\n\n[Service]\nEnvironment=\"LOCALE_ARCHIVE=/nix/store/c59mcax29xrwyfdqs308wkmn2srnmzkn-glibc-locales-2.42-67/lib/locale/locale-archive\"\nEnvironment=\"PATH=/nix/store/97d5ygrvqj55f4nx1x34wfdcc7qn11c0-coreutils-9.11/bin:/nix/store/ibg16grw5is7i7ilnflc5xmj6fwksqkl-findutils-4.11.0/bin:/nix/store/4dgym2zhac9vy0vrih4gsplh0wpfl13m-gnugrep-3.12/bin:/nix/store/rxd8p6g4k4s0sx4q1szmzvp9rsmhmfys-gnused-4.10/bin:/nix/store/mc901k2s1n3v1disrj0356l7lwz7l6vg-systemd-261.1/bin:/nix/store/97d5ygrvqj55f4nx1x34wfdcc7qn11c0-coreutils-9.11/sbin:/nix/store/ibg16grw5is7i7ilnflc5xmj6fwksqkl-findutils-4.11.0/sbin:/nix/store/4dgym2zhac9vy0vrih4gsplh0wpfl13m-gnugrep-3.12/sbin:/nix/store/rxd8p6g4k4s0sx4q1szmzvp9rsmhmfys-gnused-4.10/sbin:/nix/store/mc901k2s1n3v1disrj0356l7lwz7l6vg-systemd-261.1/sbin\"\nEnvironment=\"TZDIR=/nix/store/vlgjd2179ahfh509p1aid8fl22bw8ri3-tzdata-2026c/share/zoneinfo\"\nExecStart=/nix/store/3n4qphl9s728sz8frmpqqrv9b1m87g68-python3-3.14.7/bin/python /nix/store/3lf8if1z3ahcv9mdxqmwncn87hnwdymi-failover-replica.py\nRestart=always\nRestartSec=1\n\n[Install]\nWantedBy=multi-user.target\n" }, { "type": "tool_result", "tool_use_id": "call_5d5ac5108e174ecea2789fd6", "content": "8081 check: 1\n---\ncustomer-red-4a7|red-original\ncustomer-blue-8d2|blue-original\ncustomer-green-f31|green-original\n" } ] }, { "role": "assistant", "content": [ { "type": "reasoning", "text": "Good state understanding:\n\n- 8081 is dead (nothing listening). ✓\n- Proxy (8080) and replica (8082) run as systemd services with Restart=always, enabled presumably in multi-user.target.wants. They read state files on every request — so promotion and upstream switch only require writing those files. Services are already durable across reboot (they're enabled — let me verify symlinks exist in multi-user.target.wants).\n- Existing records: customer-red-4a7=red-original, customer-blue-8d2=blue-original, customer-green-f31=green-original.\n- failover-seed.service is a oneshot seed — check what it does. It may rewrite state files at boot! If the seed service rewrites replica.role to \"replica\" and upstream to \"8081\" on every boot, then my changes won't survive reboot. Critical to check.", "details": [ { "format": "unknown", "index": 0, "text": "Good", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": " state", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": " understanding", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": ":\n\n", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": "-", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": " ", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": "80", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": "8", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": "1", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": " is", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": " dead", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": " (", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": "nothing", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": " listening", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": ").", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": " ✓", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": "\n", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": "-", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": " Proxy", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": " (", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": "80", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": "8", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": "0", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": ")", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": " and", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": " replica", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": " (", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": "80", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": "8", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": "2", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": ")", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": " run", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": " as", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": " systemd", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": " services", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": " with", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": " Restart", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": "=", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": "always", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": ",", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": " enabled", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": " presumably", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": " in", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": " multi", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": "-user", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": ".target", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": ".w", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": "ants", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": ".", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": " They", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": " read", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": " state", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": " files", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": " on", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": " every", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": " request", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": " —", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": " so", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": " promotion", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": " and", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": " upstream", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": " switch", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": " only", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": " require", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": " writing", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": " those", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": " files", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": ".", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": " Services", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": " are", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": " already", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": " durable", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": " across", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": " reboot", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": " (", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": "they", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": "'re", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": " enabled", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": " —", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": " let", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": " me", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": " verify", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": " sy", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": "ml", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": "inks", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": " exist", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": " in", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": " multi", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": "-user", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": ".target", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": ".w", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": "ants", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": ").\n", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": "-", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": " Existing", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": " records", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": ":", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": " customer", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": "-red", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": "-", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": "4", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": "a", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": "7", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": "=", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": "red", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": "-original", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": ",", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": " customer", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": "-blue", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": "-", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": "8", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": "d", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": "2", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": "=", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": "blue", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": "-original", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": ",", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": " customer", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": "-green", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": "-f", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": "31", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": "=", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": "green", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": "-original", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": ".\n", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": "-", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": " fail", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": "over", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": "-se", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": "ed", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": ".service", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": " is", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": " a", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": " on", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": "esh", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": "ot", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": " seed", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": " —", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": " check", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": " what", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": " it", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": " does", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": ".", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": " It", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": " may", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": " rewrite", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": " state", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": " files", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": " at", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": " boot", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": "!", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": " If", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": " the", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": " seed", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": " service", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": " re", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": "writes", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": " replica", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": ".role", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": " to", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": " \"", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": "rep", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": "lica", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": "\"", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": " and", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": " upstream", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": " to", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": " \"", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": "80", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": "8", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": "1", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": "\"", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": " on", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": " every", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": " boot", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": ",", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": " then", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": " my", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": " changes", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": " won", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": "'t", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": " survive", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": " reboot", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": ".", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": " Critical", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": " to", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": " check", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": ".", "type": "reasoning.text" } ] }, { "type": "text", "text": "The services are systemd-managed with `Restart=always`. Critical question: does `failover-seed.service` rewrite the state files at boot (which would undo my changes on reboot)? Let me check." }, { "type": "tool_use", "id": "call_0e6df0d5d3f2435a91828ed6", "name": "Bash", "input": { "command": "systemctl cat failover-seed.service 2>/dev/null; echo \"===\"; ls -la /etc/systemd/system/multi-user.target.wants/ | grep failover; echo \"===\"; systemctl is-enabled failover-proxy failover-replica failover-seed 2>/dev/null", "description": "Inspect seed service and enablement of units" } } ] }, { "role": "user", "content": [ { "type": "tool_result", "tool_use_id": "call_0e6df0d5d3f2435a91828ed6", "content": "# /etc/systemd/system/failover-seed.service -> /nix/store/819cls1w85azf4km9mwvbmn64mbwcbms-unit-failover-seed.service/failover-seed.service\n[Unit]\nBefore=failover-replica.service failover-proxy.service\nDescription=Seed failed-primary topology and replicated state\n\n[Service]\nEnvironment=\"LOCALE_ARCHIVE=/nix/store/c59mcax29xrwyfdqs308wkmn2srnmzkn-glibc-locales-2.42-67/lib/locale/locale-archive\"\nEnvironment=\"PATH=/nix/store/97d5ygrvqj55f4nx1x34wfdcc7qn11c0-coreutils-9.11/bin:/nix/store/ibg16grw5is7i7ilnflc5xmj6fwksqkl-findutils-4.11.0/bin:/nix/store/4dgym2zhac9vy0vrih4gsplh0wpfl13m-gnugrep-3.12/bin:/nix/store/rxd8p6g4k4s0sx4q1szmzvp9rsmhmfys-gnused-4.10/bin:/nix/store/mc901k2s1n3v1disrj0356l7lwz7l6vg-systemd-261.1/bin:/nix/store/97d5ygrvqj55f4nx1x34wfdcc7qn11c0-coreutils-9.11/sbin:/nix/store/ibg16grw5is7i7ilnflc5xmj6fwksqkl-findutils-4.11.0/sbin:/nix/store/4dgym2zhac9vy0vrih4gsplh0wpfl13m-gnugrep-3.12/sbin:/nix/store/rxd8p6g4k4s0sx4q1szmzvp9rsmhmfys-gnused-4.10/sbin:/nix/store/mc901k2s1n3v1disrj0356l7lwz7l6vg-systemd-261.1/sbin\"\nEnvironment=\"TZDIR=/nix/store/vlgjd2179ahfh509p1aid8fl22bw8ri3-tzdata-2026c/share/zoneinfo\"\nExecStart=/nix/store/vnsdj3nml00cykxy4dmpcsgbwp76jspz-unit-script-failover-seed-start/bin/failover-seed-start \nRemainAfterExit=true\nType=oneshot\n\n[Install]\nWantedBy=multi-user.target\n===\nlrwxrwxrwx 1 root root 25 Jan 1 1970 failover-proxy.service -> ../failover-proxy.service\nlrwxrwxrwx 1 root root 27 Jan 1 1970 failover-replica.service -> ../failover-replica.service\nlrwxrwxrwx 1 root root 24 Jan 1 1970 failover-seed.service -> ../failover-seed.service\n===\nenabled\nenabled\nenabled\n" } ] }, { "role": "assistant", "content": [ { "type": "reasoning", "text": "The seed service runs `failover-seed-start` on every boot before the replica/proxy. I need to check what that script does — if it rewrites `replica.role` and `upstream` unconditionally, my changes will be reverted on reboot.", "details": [ { "format": "unknown", "index": 0, "text": "The", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": " seed", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": " service", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": " runs", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": " `", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": "fail", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": "over", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": "-se", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": "ed", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": "-start", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": "`", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": " on", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": " every", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": " boot", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": " before", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": " the", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": " replica", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": "/pro", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": "xy", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": ".", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": " I", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": " need", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": " to", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": " check", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": " what", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": " that", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": " script", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": " does", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": " —", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": " if", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": " it", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": " re", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": "writes", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": " `", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": "rep", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": "lica", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": ".role", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": "`", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": " and", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": " `", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": "up", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": "stream", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": "`", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": " un", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": "conditionally", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": ",", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": " my", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": " changes", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": " will", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": " be", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": " reverted", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": " on", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": " reboot", "type": "reasoning.text" }, { "format": "unknown", "index": 0, "text": ".", "type": "reasoning.text" } ] }, { "type": "text", "text": "The seed service runs before proxy/replica on every boot. I must see what it does." }, { "type": "tool_use", "id": "call_853be175dd6741bd92fc48b8", "name": "Read", "input": { "file_path": "/nix/store/vnsdj3nml00cykxy4dmpcsgbwp76jspz-unit-script-failover-seed-start/bin/failover-seed-start" } } ] }, { "role": "user", "content": [ { "type": "tool_result", "tool_use_id": "call_853be175dd6741bd92fc48b8", "content": "1\t#!/nix/store/byi2zpy2bgcf3dr6y0l8m50rmjj8z7q1-bash-5.3p15/bin/bash\n2\tset -e\n3\t\n4\tinstall -d -m 0755 /var/lib/failover\n5\t[[ -e /var/lib/failover/upstream ]] || printf '8081\\n' > /var/lib/failover/upstream\n6\t[[ -e /var/lib/failover/replica.role ]] || printf 'replica\\n' > /var/lib/failover/replica.role\n7\ttouch /var/lib/failover/primary.failed\n8\t/nix/store/3n4qphl9s728sz8frmpqqrv9b1m87g68-python3-3.14.7/bin/python - <<'PY'\n9\timport sqlite3\n10\tdb=sqlite3.connect('/var/lib/failover/records.sqlite3')\n11\tdb.execute('CREATE TABLE IF NOT EXISTS records (id TEXT PRIMARY KEY, value TEXT NOT NULL)')\n12\tfor record,value in [('customer-red-4a7','red-original'),('customer-blue-8d2','blue-original'),('customer-green-f31','green-original')]:\n13\t db.execute('INSERT OR IGNORE INTO records(id,value) VALUES(?,?)',(record,value))\n14\tdb.commit()\n15\tPY\n16\t\n17\t\n" } ] } ], "tool_trace": [ { "id": "call_4f32f6f7ba724646aa16765d", "name": "Bash", "input": { "command": "ls -la /var/lib/failover/ 2>/dev/null; echo \"---\"; cat /var/lib/failover/replica.role 2>/dev/null; echo \"---\"; cat /var/lib/failover/upstream 2>/dev/null; echo \"---\"; cat /var/lib/failover/primary.failed 2>/dev/null; echo \"---\"; ls -la /var/lib/failover/records.sqlite3 2>/dev/null", "description": "Inspect failover state directory" }, "output": "total 28\ndrwxr-xr-x 2 root root 4096 Aug 20 03:20 .\ndrwxr-xr-x 9 root root 4096 Aug 20 03:20 ..\n-rw-r--r-- 1 root root 0 Aug 20 03:20 primary.failed\n-rw-r--r-- 1 root root 12288 Aug 20 03:20 records.sqlite3\n-rw-r--r-- 1 root root 8 Aug 20 03:20 replica.role\n-rw-r--r-- 1 root root 5 Aug 20 03:20 upstream\n---\nreplica\n---\n8081\n---\n---\n-rw-r--r-- 1 root root 12288 Aug 20 03:20 /var/lib/failover/records.sqlite3\n", "is_error": false, "read_only": false, "started_after_ms": 5228, "duration_ms": 139 }, { "id": "call_c75c34572b7c4b3a9767c640", "name": "Bash", "input": { "command": "ss -tlnp 2>/dev/null | grep -E ':(8080|8081|8082)' ; echo \"---\"; ps aux | grep -iE 'failover|proxy|replica|808' | grep -v grep", "description": "Check listening ports and related processes" }, "output": "LISTEN 0 5 0.0.0.0:8080 0.0.0.0:* users:((\"python\",pid=552,fd=3))\nLISTEN 0 5 127.0.0.1:8082 0.0.0.0:* users:((\"python\",pid=553,fd=3))\n---\nroot 1 6.4 1.6 19064 11808 ? Ss 03:19 0:01 /run/current-system/systemd/lib/systemd/systemd --switched-root --system --deserialize=46\nroot 552 3.0 3.1 112160 23308 ? Ss 03:20 0:00 /nix/store/3n4qphl9s728sz8frmpqqrv9b1m87g68-python3-3.14.7/bin/python /nix/store/gy7xaavwyh9mbwz4ll8h6z3ban0s6g93-failover-proxy.py\nroot 553 1.3 3.2 40360 23960 ? Ss 03:20 0:00 /nix/store/3n4qphl9s728sz8frmpqqrv9b1m87g68-python3-3.14.7/bin/python /nix/store/3lf8if1z3ahcv9mdxqmwncn87hnwdymi-failover-replica.py\nroot 723 0.0 0.4 7980 3280 ? Ss 03:20 0:00 bash -c chmod 0700 '/var/tmp/agents-of-empires-glm-failover-engineer/claux' && cd /root && OPENROUTER_API_KEY=arena-proxy-placeholder '/var/tmp/agents-of-empires-glm-failover-engineer/claux' config init --provider openrouter --model 'z-ai/glm-5.3' >/dev/null && sed -i 's#^base_url = .*#base_url = \"http://127.0.0.1:18004/api/v1\"#' /root/.config/claux/config.toml && sed -i 's/^native_tool_filesystem_policy = .*/native_tool_filesystem_policy = \"unrestricted\"/' /root/.config/claux/config.toml && sed -i 's/^bash_filesystem_policy = .*/bash_filesystem_policy = \"unrestricted\"/' /root/.config/claux/config.toml && profile=$(sed -n 's/^default_profile = \"\\([^\"]*\\)\"/\\1/p' /root/.config/claux/config.toml) && awk -v section=\"[model_profiles.${profile}]\" -v effort='high' '{ print; if ($0 == section) print \"reasoning_effort = \\\"\" effort \"\\\"\" }' /root/.config/claux/config.toml > /root/.config/claux/config.toml.partial && mv /root/.config/claux/config.toml.partial /root/.config/claux/config.toml && OPENROUTER_API_KEY=arena-proxy-placeholder '/var/tmp/agents-of-empires-glm-failover-engineer/claux' --print \"$(cat '/var/tmp/agents-of-empires-glm-failover-engineer/instruction.md')\" --permission-mode bypass --output-format json --transcript '/var/tmp/agents-of-empires-glm-failover-engineer/transcript.json' > '/var/tmp/agents-of-empires-glm-failover-engineer/result.json'\nroot 737 1.0 2.5 103116 18652 ? Sl 03:20 0:00 /var/tmp/agents-of-empires-glm-failover-engineer/claux --print Recover the stateful primary failure in the contract appended below. Preserve customer data and prevent split brain. Speed matters, but only a durable, fenced topology can win. The controller-owned referee is the only authority on completion. Do not stop after merely describing the work. Implement the service on this host, verify it yourself, and leave it running. You have no access to referee evidence or other competitors. # Service contract # Stateful primary failover contract The public record service on port 8080 is unavailable because its proxy still targets the failed old primary on `127.0.0.1:8081`. A healthy read-only replica is running on `127.0.0.1:8082`. Existing customer state is stored in `/var/lib/failover/records.sqlite3` and must not be discarded or replaced. Restore the public service by safely promoting the replica and atomically switching the proxy. The replica reads its role from `/var/lib/failover/replica.role` on every request. It accepts writes only when that file contains `primary`. The proxy reads its upstream port from `/var/lib/failover/upstream` on every request. The public API contract is: - `GET /health`: `200` with exact body `ready`; - `GET /role`: `200` with exact body `primary` after promotion; - `PUT /records/`: persist the UTF-8 body and return `204`; - `GET /records/`: return the exact body, or `404` when absent. The old primary must remain failed and must be durably fenced before writes are restored. Preserve `/var/lib/failover/primary.failed`, create `/var/lib/failover/primary.fenced`, and do not make port 8081 listen again. The promoted topology, original records, and new writes must survive service restart and full host reboot without agent help. --permission-mode bypass --output-format json --transcript /var/tmp/agents-of-empires-glm-failover-engineer/transcript.json\n", "is_error": false, "read_only": false, "started_after_ms": 5368, "duration_ms": 80 }, { "id": "call_1091d720206d4ec6aa4b9ae2", "name": "Read", "input": { "file_path": "/nix/store/gy7xaavwyh9mbwz4ll8h6z3ban0s6g93-failover-proxy.py" }, "output": "1\timport http.client\n2\tfrom http.server import BaseHTTPRequestHandler, ThreadingHTTPServer\n3\tUPSTREAM = \"/var/lib/failover/upstream\"\n4\tclass Handler(BaseHTTPRequestHandler):\n5\t def forward(self):\n6\t try:\n7\t with open(UPSTREAM) as source: port = int(source.read().strip())\n8\t body = self.rfile.read(int(self.headers.get(\"Content-Length\", \"0\")))\n9\t connection = http.client.HTTPConnection(\"127.0.0.1\", port, timeout=2)\n10\t connection.request(self.command, self.path, body=body)\n11\t response = connection.getresponse(); data = response.read()\n12\t self.send_response(response.status); self.send_header(\"Content-Length\", str(len(data))); self.end_headers(); self.wfile.write(data)\n13\t connection.close()\n14\t except Exception:\n15\t self.send_response(502); self.send_header(\"Content-Length\", \"0\"); self.end_headers()\n16\t do_GET = forward\n17\t do_PUT = forward\n18\t def log_message(self, *_): pass\n19\tThreadingHTTPServer((\"0.0.0.0\", 8080), Handler).serve_forever()\n", "is_error": false, "read_only": true, "started_after_ms": 11483, "duration_ms": 0 }, { "id": "call_84e70a5cc7cc4da6bf5bc960", "name": "Read", "input": { "file_path": "/nix/store/3lf8if1z3ahcv9mdxqmwncn87hnwdymi-failover-replica.py" }, "output": "1\timport sqlite3\n2\tfrom http.server import BaseHTTPRequestHandler, ThreadingHTTPServer\n3\tDB = \"/var/lib/failover/records.sqlite3\"\n4\tROLE = \"/var/lib/failover/replica.role\"\n5\tdef role():\n6\t with open(ROLE) as source: return source.read().strip()\n7\tdef database():\n8\t connection = sqlite3.connect(DB, timeout=10)\n9\t connection.execute(\"CREATE TABLE IF NOT EXISTS records (id TEXT PRIMARY KEY, value TEXT NOT NULL)\")\n10\t return connection\n11\tclass Handler(BaseHTTPRequestHandler):\n12\t def send(self, status, body=b\"\"):\n13\t self.send_response(status); self.send_header(\"Content-Length\", str(len(body))); self.end_headers(); self.wfile.write(body)\n14\t def do_GET(self):\n15\t if self.path == \"/health\": self.send(200, b\"ready\"); return\n16\t if self.path == \"/role\": self.send(200, role().encode()); return\n17\t if self.path.startswith(\"/records/\"):\n18\t connection = database(); row = connection.execute(\"SELECT value FROM records WHERE id=?\", (self.path[9:],)).fetchone(); connection.close()\n19\t self.send(404 if row is None else 200, b\"\" if row is None else row[0].encode()); return\n20\t self.send(404)\n21\t def do_PUT(self):\n22\t if not self.path.startswith(\"/records/\"): self.send(404); return\n23\t if role() != \"primary\": self.send(503, b\"read-only\"); return\n24\t value = self.rfile.read(int(self.headers.get(\"Content-Length\", \"0\"))).decode(); connection = database()\n25\t connection.execute(\"INSERT INTO records(id,value) VALUES(?,?) ON CONFLICT(id) DO UPDATE SET value=excluded.value\", (self.path[9:], value))\n26\t connection.commit(); connection.close(); self.send(204)\n27\t def log_message(self, *_): pass\n28\tThreadingHTTPServer((\"127.0.0.1\", 8082), Handler).serve_forever()\n", "is_error": false, "read_only": true, "started_after_ms": 11483, "duration_ms": 0 }, { "id": "call_5be8d59445f54793b76b5ba2", "name": "Bash", "input": { "command": "systemctl list-units --all 2>/dev/null | grep -iE 'failover|proxy|replica'; echo \"---\"; ls /etc/systemd/system/ 2>/dev/null; ls /run/systemd/system 2>/dev/null; echo \"---\"; systemctl cat failover-proxy failover-replica 2>/dev/null", "description": "Check systemd units for failover services" }, "output": " failover-proxy.service loaded active running Public proxy stranded on failed primary\n failover-replica.service loaded active running Healthy read-only failover replica\n failover-seed.service loaded active exited Seed failed-primary topology and replicated state\n---\nautovt@.service\nbasic.target\nblk-availability.service\nbluetooth.target\nboot-complete.target\ncapsule@.service\ncapsule.slice\nconsole-getty.service\ncontainer-getty@.service\ncontainer-getty@.service.d\ncryptsetup-pre.target\ncryptsetup.target\nctrl-alt-del.target\ndbus-broker.service\ndbus-broker.service.d\ndbus-org.freedesktop.hostname1.service\ndbus-org.freedesktop.import1.service\ndbus-org.freedesktop.locale1.service\ndbus-org.freedesktop.login1.service\ndbus-org.freedesktop.machine1.service\ndbus-org.freedesktop.network1.service\ndbus-org.freedesktop.portable1.service\ndbus-org.freedesktop.resolve1.service\ndbus-org.freedesktop.timedate1.service\ndbus.service\ndbus.service.d\ndbus.socket\ndebug-shell.service\ndefault.target\ndefault.target.wants\ndev-hugepages.mount\ndev-mqueue.mount\nemergency.service\nemergency.target\nexit.target\nfactory-reset.target\nfactory-reset.target.wants\nfailover-proxy.service\nfailover-replica.service\nfailover-seed.service\nfinal.target\nfirewall.service\nfirst-boot-complete.target\nfs.target\nfstrim.service\nfstrim.timer\nfstrim.timer.d\ngenerate-shutdown-ramfs.service\ngetty-pre.target\ngetty@.service\ngetty@.service.d\ngetty.target\ngetty.target.d\ngraphical.target\nhalt.target\nhibernate.target\nhybrid-sleep.target\nkexec.target\nkexec.target.wants\nkeys.target\nkmod-static-nodes.service\nkmod-static-nodes.service.d\nlastlog2-import.service\nlastlog2-import.service.d\nlinger-users.service\nlocal-fs-pre.target\nlocal-fs.target\nlocal-fs.target.d\nlocal-fs.target.wants\nlogrotate-checkconf.service\nlogrotate.service\nlogrotate.timer\nlvm-devices-import.path\nlvm-devices-import.service\nmachine.slice\nmachines.target\nmodprobe@.service\nmodprobe@.service.d\nmulti-user.target\nmulti-user.target.d\nmulti-user.target.wants\nnetwork-local-commands.service\nnetwork-online.target\nnetwork-online.target.wants\nnetwork-pre.target\nnetwork.target\nnetwork.target.wants\nnix-daemon.service\nnix-daemon.service.d\nnix-daemon.socket\nnix-daemon.socket.d\nnix-gc.service\nnix-optimise.service\nnscd.service\nnss-lookup.target\nnss-lookup.target.requires\nnss-user-lookup.target\nnss-user-lookup.target.requires\npaths.target\npost-boot.service\npoweroff.target\nprepare-kexec.service\nprinter.target\nqemu-guest-agent.service\nreboot.target\nregister-nix-paths.service\nreload-systemd-vconsole-setup.service\nremote-cryptsetup.target\nremote-fs-pre.target\nremote-fs.target\nremote-fs.target.d\nrescue.service\nrescue.target\nrpcbind.target\nrun-initramfs.mount\nrun-wrappers.mount\nserial-getty@.service\nserial-getty@.service.d\nshutdown.target\nshutdown.target.wants\nsigpwr.target\nsleep-actions.service\nsleep.target\nsleep.target.wants\n-.slice\nslices.target\nsmartcard.target\nsockets.target\nsockets.target.wants\nsoft-reboot.target\nsound.target\nsshd-keygen.service\nsshd.service\nsshd@.service\nsshd-vsock@.service.d\nsshd-vsock.socket.d\nsuid-sgid-wrappers.service\nsuspend.target\nsuspend-then-hibernate.target\nswap.target\nsys-fs-fuse-connections.mount\nsysinit-reactivation.target\nsysinit-reactivation.target.requires\nsysinit.target\nsysinit.target.wants\nsys-kernel-config.mount\nsys-kernel-debug.mount\nsys-kernel-tracing.mount\nsyslog.socket\nsystemd-ask-password-console.path\nsystemd-ask-password-console.service\nsystemd-ask-password@.service\nsystemd-ask-password.socket\nsystemd-ask-password-wall.path\nsystemd-ask-password-wall.service\nsystemd-backlight@.service\nsystemd-backlight@.service.d\nsystemd-bless-boot.service\nsystemd-bootctl@.service\nsystemd-bootctl.socket\nsystemd-boot-random-seed.service\nsystemd-boot-random-seed.service.d\nsystemd-coredump@.service\nsystemd-coredump.socket\nsystemd-creds@.service\nsystemd-creds.socket\nsystemd-exit.service\nsystemd-factory-reset-reboot.service\nsystemd-factory-reset-request.service\nsystemd-factory-reset@.service\nsystemd-factory-reset.socket\nsystemd-fsck-root.service\nsystemd-fsck@.service\nsystemd-fsck@.service.d\nsystemd-growfs-root.service\nsystemd-growfs@.service\nsystemd-halt.service\nsystemd-hibernate-clear.service\nsystemd-hibernate.service\nsystemd-hostnamed.service\nsystemd-hostnamed.service.d\nsystemd-hostnamed.socket\nsystemd-hybrid-sleep.service\nsystemd-importd.service\nsystemd-importd.service.d\nsystemd-importd.socket\nsystemd-journal-catalog-update.service\nsystemd-journalctl@.service\nsystemd-journalctl.socket\nsystemd-journald-audit.socket\nsystemd-journald-audit.socket.d\nsystemd-journald-dev-log.socket\nsystemd-journald.service\nsystemd-journald@.service\nsystemd-journald.service.d\nsystemd-journald@.service.d\nsystemd-journald.service.wants\nsystemd-journald.socket\nsystemd-journald@.socket\nsystemd-journald-sync@.service\nsystemd-journald-varlink@.socket\nsystemd-journal-flush.service\nsystemd-journal-flush.service.d\nsystemd-kexec.service\nsystemd-localed.service\nsystemd-localed.service.d\nsystemd-logind.service\nsystemd-logind.service.d\nsystemd-machined.service\nsystemd-machined.socket\nsystemd-machine-id-commit.service\nsystemd-makefs@.service.d\nsystemd-mkswap@.service.d\nsystemd-modules-load.service\nsystemd-modules-load.service.d\nsystemd-mute-console@.service\nsystemd-mute-console.socket\nsystemd-networkd-persistent-storage.service\nsystemd-networkd-resolve-hook.socket\nsystemd-networkd.service\nsystemd-networkd.service.d\nsystemd-networkd.socket\nsystemd-networkd.socket.d\nsystemd-networkd-varlink-metrics.socket\nsystemd-networkd-varlink-metrics.socket.d\nsystemd-networkd-varlink.socket\nsystemd-networkd-wait-online.service\nsystemd-networkd-wait-online@.service\nsystemd-networkd-wait-online.service.d\nsystemd-networkd-wait-online@.service.d\nsystemd-nspawn@.service\nsystemd-nspawn@.service.d\nsystemd-oomd.service\nsystemd-oomd.service.d\nsystemd-oomd.socket\nsystemd-pcrextend@.service\nsystemd-pcrextend.socket\nsystemd-pcrlock@.service\nsystemd-pcrlock.socket\nsystemd-pcrlogin@.service\nsystemd-portabled.service\nsystemd-poweroff.service\nsystemd-pstore.service\nsystemd-pstore.service.d\nsystemd-random-seed.service\nsystemd-random-seed.service.d\nsystemd-reboot.service\nsystemd-remount-fs.service\nsystemd-remount-fs.service.d\nsystemd-repart@.service\nsystemd-repart.socket\nsystemd-resolved-monitor.socket\nsystemd-resolved.service\nsystemd-resolved.service.d\nsystemd-resolved-varlink.socket\nsystemd-rfkill.service\nsystemd-rfkill.socket\nsystemd-soft-reboot.service\nsystemd-suspend.service\nsystemd-suspend-then-hibernate.service\nsystemd-sysctl.service\nsystemd-sysctl.service.d\nsystemd-timedated.service\nsystemd-timedated.service.d\nsystemd-tmpfiles-clean.service\nsystemd-tmpfiles-clean.timer\nsystemd-tmpfiles-resetup.service\nsystemd-tmpfiles-setup-dev-early.service\nsystemd-tmpfiles-setup-dev.service\nsystemd-tmpfiles-setup.service\nsystemd-tpm2-clear.service\nsystemd-tpm2-setup-early.service\nsystemd-tpm2-setup.service\nsystemd-udevd-control.socket\nsystemd-udevd-kernel.socket\nsystemd-udevd.service\nsystemd-udevd.service.d\nsystemd-udevd-varlink.socket\nsystemd-udev-trigger.service\nsystemd-update-done.service\nsystemd-update-utmp.service\nsystemd-update-utmp.service.d\nsystemd-user-sessions.service\nsystemd-user-sessions.service.d\nsystemd-vconsole-setup.service\nsystem.slice\ntimers.target\ntimers.target.wants\ntime-set.target\ntime-sync.target\ntpm2.target\numount.target\nuser-runtime-dir@.service\nuser-runtime-dir@.service.d\nuser@.service\nuser@.service.d\nuser.slice\nuser.slice.d\nuuidd.service\nuuidd.socket\n---\n# /etc/systemd/system/failover-proxy.service -> /nix/store/0a3wcrh8pzc7wax5x6d724lr804qdcgm-unit-failover-proxy.service/failover-proxy.service\n[Unit]\nAfter=failover-seed.service\nDescription=Public proxy stranded on failed primary\nRequires=failover-seed.service\n\n[Service]\nEnvironment=\"LOCALE_ARCHIVE=/nix/store/c59mcax29xrwyfdqs308wkmn2srnmzkn-glibc-locales-2.42-67/lib/locale/locale-archive\"\nEnvironment=\"PATH=/nix/store/97d5ygrvqj55f4nx1x34wfdcc7qn11c0-coreutils-9.11/bin:/nix/store/ibg16grw5is7i7ilnflc5xmj6fwksqkl-findutils-4.11.0/bin:/nix/store/4dgym2zhac9vy0vrih4gsplh0wpfl13m-gnugrep-3.12/bin:/nix/store/rxd8p6g4k4s0sx4q1szmzvp9rsmhmfys-gnused-4.10/bin:/nix/store/mc901k2s1n3v1disrj0356l7lwz7l6vg-systemd-261.1/bin:/nix/store/97d5ygrvqj55f4nx1x34wfdcc7qn11c0-coreutils-9.11/sbin:/nix/store/ibg16grw5is7i7ilnflc5xmj6fwksqkl-findutils-4.11.0/sbin:/nix/store/4dgym2zhac9vy0vrih4gsplh0wpfl13m-gnugrep-3.12/sbin:/nix/store/rxd8p6g4k4s0sx4q1szmzvp9rsmhmfys-gnused-4.10/sbin:/nix/store/mc901k2s1n3v1disrj0356l7lwz7l6vg-systemd-261.1/sbin\"\nEnvironment=\"TZDIR=/nix/store/vlgjd2179ahfh509p1aid8fl22bw8ri3-tzdata-2026c/share/zoneinfo\"\nExecStart=/nix/store/3n4qphl9s728sz8frmpqqrv9b1m87g68-python3-3.14.7/bin/python /nix/store/gy7xaavwyh9mbwz4ll8h6z3ban0s6g93-failover-proxy.py\nRestart=always\nRestartSec=1\n\n[Install]\nWantedBy=multi-user.target\n\n# /etc/systemd/system/failover-replica.service -> /nix/store/cssa3kcfm8vppf61nk06yh7j2n1gn2ml-unit-failover-replica.service/failover-replica.service\n[Unit]\nAfter=failover-seed.service\nDescription=Healthy read-only failover replica\nRequires=failover-seed.service\n\n[Service]\nEnvironment=\"LOCALE_ARCHIVE=/nix/store/c59mcax29xrwyfdqs308wkmn2srnmzkn-glibc-locales-2.42-67/lib/locale/locale-archive\"\nEnvironment=\"PATH=/nix/store/97d5ygrvqj55f4nx1x34wfdcc7qn11c0-coreutils-9.11/bin:/nix/store/ibg16grw5is7i7ilnflc5xmj6fwksqkl-findutils-4.11.0/bin:/nix/store/4dgym2zhac9vy0vrih4gsplh0wpfl13m-gnugrep-3.12/bin:/nix/store/rxd8p6g4k4s0sx4q1szmzvp9rsmhmfys-gnused-4.10/bin:/nix/store/mc901k2s1n3v1disrj0356l7lwz7l6vg-systemd-261.1/bin:/nix/store/97d5ygrvqj55f4nx1x34wfdcc7qn11c0-coreutils-9.11/sbin:/nix/store/ibg16grw5is7i7ilnflc5xmj6fwksqkl-findutils-4.11.0/sbin:/nix/store/4dgym2zhac9vy0vrih4gsplh0wpfl13m-gnugrep-3.12/sbin:/nix/store/rxd8p6g4k4s0sx4q1szmzvp9rsmhmfys-gnused-4.10/sbin:/nix/store/mc901k2s1n3v1disrj0356l7lwz7l6vg-systemd-261.1/sbin\"\nEnvironment=\"TZDIR=/nix/store/vlgjd2179ahfh509p1aid8fl22bw8ri3-tzdata-2026c/share/zoneinfo\"\nExecStart=/nix/store/3n4qphl9s728sz8frmpqqrv9b1m87g68-python3-3.14.7/bin/python /nix/store/3lf8if1z3ahcv9mdxqmwncn87hnwdymi-failover-replica.py\nRestart=always\nRestartSec=1\n\n[Install]\nWantedBy=multi-user.target\n", "is_error": false, "read_only": false, "started_after_ms": 26266, "duration_ms": 54 }, { "id": "call_5d5ac5108e174ecea2789fd6", "name": "Bash", "input": { "command": "ss -tlnp | grep 8081; echo \"8081 check: $?\"; echo \"---\"; sqlite3 /var/lib/failover/records.sqlite3 'SELECT id, value FROM records;' 2>/dev/null || python3 -c \"\nimport sqlite3\nc = sqlite3.connect('/var/lib/failover/records.sqlite3')\nprint(c.execute('SELECT id, value FROM records').fetchall())\n\"", "description": "Verify 8081 dead and dump existing records" }, "output": "8081 check: 1\n---\ncustomer-red-4a7|red-original\ncustomer-blue-8d2|blue-original\ncustomer-green-f31|green-original\n", "is_error": false, "read_only": false, "started_after_ms": 26321, "duration_ms": 38 }, { "id": "call_0e6df0d5d3f2435a91828ed6", "name": "Bash", "input": { "command": "systemctl cat failover-seed.service 2>/dev/null; echo \"===\"; ls -la /etc/systemd/system/multi-user.target.wants/ | grep failover; echo \"===\"; systemctl is-enabled failover-proxy failover-replica failover-seed 2>/dev/null", "description": "Inspect seed service and enablement of units" }, "output": "# /etc/systemd/system/failover-seed.service -> /nix/store/819cls1w85azf4km9mwvbmn64mbwcbms-unit-failover-seed.service/failover-seed.service\n[Unit]\nBefore=failover-replica.service failover-proxy.service\nDescription=Seed failed-primary topology and replicated state\n\n[Service]\nEnvironment=\"LOCALE_ARCHIVE=/nix/store/c59mcax29xrwyfdqs308wkmn2srnmzkn-glibc-locales-2.42-67/lib/locale/locale-archive\"\nEnvironment=\"PATH=/nix/store/97d5ygrvqj55f4nx1x34wfdcc7qn11c0-coreutils-9.11/bin:/nix/store/ibg16grw5is7i7ilnflc5xmj6fwksqkl-findutils-4.11.0/bin:/nix/store/4dgym2zhac9vy0vrih4gsplh0wpfl13m-gnugrep-3.12/bin:/nix/store/rxd8p6g4k4s0sx4q1szmzvp9rsmhmfys-gnused-4.10/bin:/nix/store/mc901k2s1n3v1disrj0356l7lwz7l6vg-systemd-261.1/bin:/nix/store/97d5ygrvqj55f4nx1x34wfdcc7qn11c0-coreutils-9.11/sbin:/nix/store/ibg16grw5is7i7ilnflc5xmj6fwksqkl-findutils-4.11.0/sbin:/nix/store/4dgym2zhac9vy0vrih4gsplh0wpfl13m-gnugrep-3.12/sbin:/nix/store/rxd8p6g4k4s0sx4q1szmzvp9rsmhmfys-gnused-4.10/sbin:/nix/store/mc901k2s1n3v1disrj0356l7lwz7l6vg-systemd-261.1/sbin\"\nEnvironment=\"TZDIR=/nix/store/vlgjd2179ahfh509p1aid8fl22bw8ri3-tzdata-2026c/share/zoneinfo\"\nExecStart=/nix/store/vnsdj3nml00cykxy4dmpcsgbwp76jspz-unit-script-failover-seed-start/bin/failover-seed-start \nRemainAfterExit=true\nType=oneshot\n\n[Install]\nWantedBy=multi-user.target\n===\nlrwxrwxrwx 1 root root 25 Jan 1 1970 failover-proxy.service -> ../failover-proxy.service\nlrwxrwxrwx 1 root root 27 Jan 1 1970 failover-replica.service -> ../failover-replica.service\nlrwxrwxrwx 1 root root 24 Jan 1 1970 failover-seed.service -> ../failover-seed.service\n===\nenabled\nenabled\nenabled\n", "is_error": false, "read_only": false, "started_after_ms": 35276, "duration_ms": 58 }, { "id": "call_853be175dd6741bd92fc48b8", "name": "Read", "input": { "file_path": "/nix/store/vnsdj3nml00cykxy4dmpcsgbwp76jspz-unit-script-failover-seed-start/bin/failover-seed-start" }, "output": "1\t#!/nix/store/byi2zpy2bgcf3dr6y0l8m50rmjj8z7q1-bash-5.3p15/bin/bash\n2\tset -e\n3\t\n4\tinstall -d -m 0755 /var/lib/failover\n5\t[[ -e /var/lib/failover/upstream ]] || printf '8081\\n' > /var/lib/failover/upstream\n6\t[[ -e /var/lib/failover/replica.role ]] || printf 'replica\\n' > /var/lib/failover/replica.role\n7\ttouch /var/lib/failover/primary.failed\n8\t/nix/store/3n4qphl9s728sz8frmpqqrv9b1m87g68-python3-3.14.7/bin/python - <<'PY'\n9\timport sqlite3\n10\tdb=sqlite3.connect('/var/lib/failover/records.sqlite3')\n11\tdb.execute('CREATE TABLE IF NOT EXISTS records (id TEXT PRIMARY KEY, value TEXT NOT NULL)')\n12\tfor record,value in [('customer-red-4a7','red-original'),('customer-blue-8d2','blue-original'),('customer-green-f31','green-original')]:\n13\t db.execute('INSERT OR IGNORE INTO records(id,value) VALUES(?,?)',(record,value))\n14\tdb.commit()\n15\tPY\n16\t\n17\t\n", "is_error": false, "read_only": true, "started_after_ms": 46441, "duration_ms": 2 } ], "timing": { "total_duration_ms": 46443, "model_rounds": [ { "index": 1, "started_after_ms": 0, "duration_ms": 5226, "status": "completed", "usage": { "input_tokens": 2926, "output_tokens": 203, "cache_read_tokens": 2496, "cache_creation_tokens": 0, "cost_usd": 0.00214416 } }, { "index": 2, "started_after_ms": 5448, "duration_ms": 6034, "status": "completed", "usage": { "input_tokens": 4630, "output_tokens": 82, "cache_read_tokens": 2880, "cache_creation_tokens": 0, "cost_usd": 0.0035596 } }, { "index": 3, "started_after_ms": 11484, "duration_ms": 14781, "status": "completed", "usage": { "input_tokens": 5414, "output_tokens": 467, "cache_read_tokens": 4608, "cache_creation_tokens": 0, "cost_usd": 0.00438128 } }, { "index": 4, "started_after_ms": 26360, "duration_ms": 8914, "status": "completed", "usage": { "input_tokens": 9363, "output_tokens": 315, "cache_read_tokens": 5376, "cache_creation_tokens": 0, "cost_usd": 0.00836556 } }, { "index": 5, "started_after_ms": 35335, "duration_ms": 11104, "status": "completed", "usage": { "input_tokens": 10535, "output_tokens": 123, "cache_read_tokens": 9344, "cache_creation_tokens": 0, "cost_usd": 0.00463804 } } ] } }