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 <[email protected]> -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected]
