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Posted to commits@nifi.apache.org by "Mark Payne (JIRA)" <ji...@apache.org> on 2015/10/14 17:52:06 UTC

[jira] [Commented] (NIFI-122) FlowFileQueue should block if queue is too full

    [ https://issues.apache.org/jira/browse/NIFI-122?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14957126#comment-14957126 ] 

Mark Payne commented on NIFI-122:
---------------------------------

This work has been addressed as a part of a larger effort, NIFI-730.

> FlowFileQueue should block if queue is too full
> -----------------------------------------------
>
>                 Key: NIFI-122
>                 URL: https://issues.apache.org/jira/browse/NIFI-122
>             Project: Apache NiFi
>          Issue Type: Bug
>          Components: Core Framework
>            Reporter: Matt Gilman
>             Fix For: 0.4.0
>
>
> If data comes in at extremely high rates, it's possible that the FlowFiles will not be swapped out quickly enough. This can lead to OOME. Instead, the FlowFileQueue should set a limit to the queue size and block when attempting to offer a new FlowFile until either the consuming component consumes the data or the data is swapped out via the Swap Manager (MUST ensure that we do not block while holding lock!)



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