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Server Fails to Fully Restart After Crash if there is No Watchdog

Symptom:

The sever fails to fully restart after a crash. 

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Problem:

If the server crashes, exacqd will restart the server, but then exacqd exits. This causes the server to hang during initialization. If there is no watchdog timer, the server will remain in this state. The ‘core’ process should be killed. Introduced in server 9.5.25.

In addition, if someone was to accidentally kill the exacqd process, ‘core’ may enter a bad state with loss of functionality. On Windows, SCM will start exacqd again and this may lead to multiple instances of ‘core’. Now ‘core’ will detect the disappearance of exacqd and shutdown gracefully. On Windows, SCM will restart the server. On Linux, if the watchdog is present, it will reboot the system.

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Solution:

Kill the ‘core’ process. Then update to exacqVision Server version 9.5.32 or higher.