[GitHub] [geode] demery-pivotal opened a new pull request #6710: GEODE-9443: Increase pid_max in CI images

[GitBox <gi...@apache.org>]

demery-pivotal opened a new pull request #6710:
URL: https://github.com/apache/geode/pull/6710


   Certain Geode tests create a lot of threads. When these tests run in
   parallel with many other tests (as they do in CI), the whole set of
   concurrently running tests can overwhelm the Linux kernel's ability to
   assign PIDs to new threads. When this happens, test processes, Gradle
   processes, and other processes can become unable to create new threads.
   
   The relevant system parameter is `kernel.pid_max`. In our CI images,
   `pid_max` is 98,304.
   
   This commit raises CI images' `pid_max` to 983040 (10x the default
   value). A build can run 24 concurrent instances of even our most
   thread-heavy tests without exceeding this threshold.
   
   Co-authored-by: Dale Emery <de...@vmware.com>
   


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[GitHub] [geode] demery-pivotal merged pull request #6710: GEODE-9443: Increase pid_max in CI images

[GitBox <gi...@apache.org>]

demery-pivotal merged pull request #6710:
URL: https://github.com/apache/geode/pull/6710


   


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