---
id: "bug-561"
status: "fixed"
status_updated: "2026-09-24"
status_note: ""
component: "lib"
severity: "unknown"
timestamp: "2026-06-14T20:05:48.755409"
last_seen: "2026-09-19T09:00:00Z"
occurrences: 1
files: ["src/include/config.h"]
tags: ["ha", "commit-barrier", "timeout", "replication", "jobsub", "config"]
related: []
legacy: true
---

# bug-561: jobsub intermittent -ETIMEDOUT "Connection timed out": commit: WAIT deadline expired without…

## Description
jobsub intermittent -ETIMEDOUT "Connection timed out": commit: WAIT deadline expired without commit (timeout_ms=50)

## Environment
_Not recorded (migrated from buglog.json)._

## Reproduction
_Not recorded (migrated from buglog.json)._

## Root cause
DEFAULT_SYNC_TIMEOUT_MS=50 too tight for durable sync majority replication (each standby fdatasyncs before ACK); not configurable (controller always used persist_config_defaults).

## Fix
Raised DEFAULT_SYNC_TIMEOUT_MS 50->500; added --sync-timeout-ms CLI flag plumbed arguments->myconf.sync_timeout_ms->pcfg.sync_timeout_ms (0=use default) in main.c/myconf.h/cluster.c.

## Verification
_Not recorded (migrated from buglog.json)._

## References
_Not recorded (migrated from buglog.json)._