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From "Joe Witt (Jira)" <j...@apache.org>
Subject [jira] [Commented] (NIFI-7114) NiFi not closing file handles
Date Fri, 21 Feb 2020 12:55:00 GMT

    [ https://issues.apache.org/jira/browse/NIFI-7114?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17041828#comment-17041828
] 

Joe Witt commented on NIFI-7114:
--------------------------------

[~pkelly.nifi] Looking at your counts they do level off and maybe that is because you stopped
starting/stopping generate flow file.  However, I cannot imagine this is what led you to think
there is a leak and avoid upgrading.  Was there more to the story?

> 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
>         Attachments: destination.xml, fifocounts.txt, flow.xml.gz, lsof.log, lsof.zip,
lsofAfter.log, lsofBefore.log, openFiles.xlsx, reproduction.zip, source.xml
>
>
> 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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