[jira] [Resolved] (NIFI-3804) Resolve "too many files open" issues in tests when running full build multiple times

["David Handermann (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/NIFI-3804?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

David Handermann resolved NIFI-3804.
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    Resolution: Cannot Reproduce

> Resolve "too many files open" issues in tests when running full build multiple times
> ------------------------------------------------------------------------------------
>
>                 Key: NIFI-3804
>                 URL: https://issues.apache.org/jira/browse/NIFI-3804
>             Project: Apache NiFi
>          Issue Type: Bug
>          Components: Tools and Build
>    Affects Versions: 1.2.0
>            Reporter: Andy LoPresto
>            Priority: Major
>              Labels: test
>
> When running the full build multiple times, tests can fail due to "too many files open" errors. These tests run successfully when the system is rebooted. I have followed configuration best practices (raising max file handles to 50_000) but after repeated test runs, this threshold is maxed out. This leads me to believe there are tests which do not clean up after themselves or temporary files which are not closed and deleted. 
> I suggest using malware detection and analysis tools/VMs to perform a file system snapshot before and after a complete test run and compare to determine what is left open. 



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