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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 13:37:00 GMT

    [ https://issues.apache.org/jira/browse/NIFI-7114?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17041867#comment-17041867
] 

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

[~pkelly.nifi] Can you tell me the total number of file handles you see in the system without
nifi running vs with?

I am starting to wonder if my focus on 'lsof -p' is missing the picture as you're doing lsof
without specifying pid and looking at overall file handles. 

> 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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