openclaw - 💡(How to fix) Fix Heartbeat silently stops after ~20h despite #52270 fix in 2026.3.28 [1 participants]

• No error logs indicating heartbeat failures

TL;DR

The heartbeat interval timer may not be properly re-armed after extended runtime, despite the supposed fix in version 2026.3.28, and a workaround or further investigation is needed to ensure consistent heartbeat execution.

Guidance

• Review the gateway logs for any subtle errors or warnings that may indicate why the heartbeat timer is not being re-armed, even if no explicit heartbeat failures are logged.
• Verify that the heartbeat configuration is correctly set to a 30-minute interval and that there are no other configuration settings that could be interfering with the timer.
• Consider implementing additional logging or monitoring to track the state of the heartbeat timer and identify when it fails to re-arm.
• Test the heartbeat functionality in a controlled environment to see if the issue can be reproduced and to gather more information about the failure mode.

Example

No specific code snippet can be provided without more information about the implementation details of the heartbeat mechanism, but adding logging statements to track the state of the timer could be helpful, such as logging when the timer is armed or disarmed.

Notes

The fact that the issue persists despite the supposed fix in version 2026.3.28 suggests that there may be additional factors at play, and further investigation is needed to determine the root cause of the problem. The lack of error logs indicating heartbeat failures makes it more challenging to diagnose the issue.

Recommendation

Apply a workaround, such as implementing a secondary mechanism to ensure the heartbeat timer is re-armed, or manually triggering the heartbeat at regular intervals, until the root cause of the issue can be determined and a permanent fix can be applied. This is recommended because the supposed fix in version 2026.3.28 does not appear to have fully resolved the issue.