[#QB-4078] QuickBuild crashed due to a deadlock

QuickBuild

QuickBuild crashed due to a deadlock

Created: 05/Mar/24 10:43 PM Updated: 08/Mar/24 12:44 AM

Component/s:

None

Affects Version/s:

12.0.19

Fix Version/s:

None

Original Estimate:	Unknown	Remaining Estimate:	Unknown	Time Spent:	Unknown
File Attachments:	1. QB_logs.txt (28 kb)
Environment:	Linux

Description

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Our QuickBuild server responded very slow and then crashed. There is a deadlock in the server logs. Any idea? I attached it here for your references.

Thanks!
ptrinh

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Robin Shen [06/Mar/24 12:10 AM]

How many database connections you've configured in "<QB server>/conf/hibernate.properties". Also please get me a stack trace when server responds slowly:

/path/to/jdk/bin/jstack <QB server JVM process id>

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Phong Trinh [06/Mar/24 01:43 AM]

Thank you for promptly resonse, Robin!
We use PostgreSQL datbase. and hibernate.c3p0.max_size=50. I will provide you the trace if this issue happens again.

Thanks,
ptrinh

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Phong Trinh [08/Mar/24 12:41 AM]

I checked the database connections in one month, the connection never reached the max.There was a build which was looping and wrote a lot of data to the log file. I am wonder if it caused the deadlock and brought the server down.

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Robin Shen [08/Mar/24 12:44 AM]

This can be a problem. You may change the log level of the configuration to WARNING (can be defined in general setting of the configuration) to suppress logs.