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https://issues.apache.org/jira/browse/NIFI-7114?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17032820#comment-17032820
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Pierre Villard commented on NIFI-7114:
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I've not been able to replicate the issue neither. The only thing that came to
mind based on the different reported occurrences is the Java version (8u242). I
could not replicate the issue myself with 8u242 but... by any chance, could you
try to replicate the issue on your side with an older version of java like
8u231? Is it possible to have the lsof output before it crashes?
> NiFi not closing file handles
> -----------------------------
>
> Key: NIFI-7114
> URL: https://issues.apache.org/jira/browse/NIFI-7114
> Project: Apache NiFi
> Issue Type: Bug
> Components: Configuration
> Affects Versions: 1.10.0, 1.11.0
> Environment: Amazon EC2 running either Amazon Linux 2 or Ubuntu 18.04.
> NiFi has been installed with no change to any configuration file.
> Reporter: Vinicius Zolin
> Priority: Major
> Fix For: 1.8.0
>
> Attachments: lsof.log
>
>
> Since at least version 1.10 NiFi stopped closing file handles. It opens circa
> 500 files per hour (measured using lsof) without any apparent limit until it
> crashes due to too many open files.
>
> Increasing the computer open file limit is not a solution since NiFi will
> still crash, it'll only take longer to do so.
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