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https://issues.apache.org/jira/browse/EAGLE-569?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15526823#comment-15526823
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ASF GitHub Bot commented on EAGLE-569:
--------------------------------------
GitHub user RalphSu opened a pull request:
https://github.com/apache/incubator-eagle/pull/457
[EAGLE-569]: AlertPublishImpl: Concurrency : Inplace change metadata …
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--->
…cause concurrent modification issue
Author : ralphsu
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/RalphSu/incubator-eagle master
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/incubator-eagle/pull/457.patch
To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:
This closes #457
----
----
> AlertPublishImpl: Concurrency : Inplace change metadata cause concurrent
> modification issue
> -------------------------------------------------------------------------------------------
>
> Key: EAGLE-569
> URL: https://issues.apache.org/jira/browse/EAGLE-569
> Project: Eagle
> Issue Type: Bug
> Affects Versions: v0.5.0
> Reporter: Su Ralph
> Assignee: Su Ralph
> Priority: Critical
> Fix For: v0.5.0
>
>
> We are try to re-use eagle alert module as part our streaming processing
> core, during test, we found below error.
> 6700 java.util.ConcurrentModificationException at
> java.util.ArrayList$Itr.checkForComodification(ArrayList.java:901) at
> java.util.ArrayList$Itr.next(ArrayList.java:851) at
> org.apache.eagle.alert.engine.publisher.impl.AlertPublisherImpl.notifyAlert(AlertPublisherImpl.java:74)
> It happens to be in AlertPublisherImpl, the metadata change is doing inplace
> update, which cause the concurrency issue when the bolt is continuing ingest
> data.
> This exception should cause following data stream not able to be published.
> Hence be blocker
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