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From "Vinicius Zolin (Jira)" <j...@apache.org>
Subject [jira] [Commented] (NIFI-7114) NiFi not closing file handles
Date Fri, 07 Feb 2020 22:50:00 GMT

    [ https://issues.apache.org/jira/browse/NIFI-7114?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17032721#comment-17032721
] 

Vinicius Zolin commented on NIFI-7114:
--------------------------------------

[~joewitt]

$java -version

openjdk version "1.8.0_242"

OpenJDK Runtime Environment (build 1.8.0_242-8u242-b08-0ubuntu3~18.04-b08

Open JDK 64-Bit Server VM (build 25.242-b08, mixed mode)

 

I've tried changing to Java 11 but had the same results.

 

It is a single node, unsecured, without any load balancer upstream. However it does have a
s2s (it process provenance from another machine).

 

lsof output is attached. [^lsof.log]

 

 

 

> 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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