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https://issues.apache.org/jira/browse/NIFI-2669?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15437618#comment-15437618
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ASF subversion and git services commented on NIFI-2669:
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Commit f908ae3c3bf6fcb95fc2ef9727e675a560a2a970 in nifi's branch
refs/heads/master from [~markap14]
[ https://git-wip-us.apache.org/repos/asf?p=nifi.git;h=f908ae3 ]
NIFI-2669: This closes #949. Ensure that if Exception is thrown during
Transaction initialization that the underlying client is closed/cleaned up.
Also ensure that we generate bulletins when logging error/warn level log
messages
> HTTP-based Site-to-Site leaks threads/memory when unable to communicate with
> remote instance
> --------------------------------------------------------------------------------------------
>
> Key: NIFI-2669
> URL: https://issues.apache.org/jira/browse/NIFI-2669
> Project: Apache NiFi
> Issue Type: Bug
> Components: Core Framework
> Reporter: Mark Payne
> Assignee: Mark Payne
> Priority: Blocker
> Fix For: 1.0.0
>
>
> I am using HTTP-based site-to-site to communicate with a remote instance of
> NiFi. I am seeing problems communicating, which is okay. But I am seeing CPU
> load of 600-700 on my system with 32 cores. I am also seeing in a thread dump
> 10's to 100's threads with the name "I/O dispatcher" and am seeing OOME's. A
> heap dump shows that the OOME is caused by 64K byte arrays, each being filled
> with 0's. The byte[] is coming from class
> org.apache.http.impl.nio.conn.PoolingNHttpClientConnectionManager.
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