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fix(connection): filter zombie connections part 2

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This commit is contained in:
Juergen Kunz
2025-06-07 20:37:49 +00:00
parent 19590ef107
commit 890e907664
4 changed files with 498 additions and 1 deletions
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26
ts/proxies/smart-proxy/connection-manager.ts
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@ -495,6 +495,32 @@ export class ConnectionManager extends LifecycleComponent {
this.cleanupConnection(record, 'half_zombie_cleanup');
}
}
// Check for stuck connections: no data sent back to client
if (!record.connectionClosed && record.outgoing && record.bytesReceived > 0 && record.bytesSent === 0) {
const age = now - record.incomingStartTime;
// If connection is older than 60 seconds and no data sent back, likely stuck
if (age > 60000) {
logger.log('warn', `Stuck connection detected: ${connectionId} - received ${record.bytesReceived} bytes but sent 0 bytes`, {
connectionId,
remoteIP: record.remoteIP,
age: plugins.prettyMs(age),
bytesReceived: record.bytesReceived,
targetHost: record.targetHost,
targetPort: record.targetPort,
component: 'connection-manager'
});
// Set termination reason and increment stats
if (record.incomingTerminationReason == null) {
record.incomingTerminationReason = 'stuck_no_response';
this.incrementTerminationStat('incoming', 'stuck_no_response');
}
// Clean up
this.cleanupConnection(record, 'stuck_no_response');
}
}
}
}