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From "Jonathan Hurley (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (AMBARI-19259) When Updating An Alert Group a ConcurrentModificationException is Thrown
Date Tue, 20 Dec 2016 20:20:58 GMT

     [ https://issues.apache.org/jira/browse/AMBARI-19259?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Jonathan Hurley updated AMBARI-19259:
-------------------------------------
    Status: Patch Available  (was: Open)

> When Updating An Alert Group a ConcurrentModificationException is Thrown
> ------------------------------------------------------------------------
>
>                 Key: AMBARI-19259
>                 URL: https://issues.apache.org/jira/browse/AMBARI-19259
>             Project: Ambari
>          Issue Type: Bug
>          Components: ambari-server
>    Affects Versions: 2.2.0
>            Reporter: Jonathan Hurley
>            Assignee: Jonathan Hurley
>            Priority: Critical
>             Fix For: 2.5.0
>
>         Attachments: AMBARI-19259.patch
>
>
> When editing an alert group which has targets via the UI, sometimes the following is
seen:
> {code}
> 16 Nov 2016 11:09:49,343  WARN [qtp-ambari-client-510524] ServletHandler:563 - /api/v1/clusters/EHIHADOOP03/alert_groups/155
> java.util.ConcurrentModificationException
> 	at java.util.HashMap$HashIterator.nextNode(HashMap.java:1429)
> 	at java.util.HashMap$KeyIterator.next(HashMap.java:1453)
> 	at org.eclipse.persistence.indirection.IndirectSet$1.next(IndirectSet.java:471)
> 	at org.apache.ambari.server.orm.entities.AlertGroupEntity.setAlertTargets(AlertGroupEntity.java:313)
> 	at org.apache.ambari.server.controller.internal.AlertGroupResourceProvider.updateAlertGroups(AlertGroupResourceProvider.java:344)
> 	at org.apache.ambari.server.controller.internal.AlertGroupResourceProvider.access$100(AlertGroupResourceProvider.java:60)
> 	at org.apache.ambari.server.controller.internal.AlertGroupResourceProvider$2.invoke(AlertGroupResourceProvider.java:187)
> 	at org.apache.ambari.server.controller.internal.AlertGroupResourceProvider$2.invoke(AlertGroupResourceProvider.java:184)
> 	at org.apache.ambari.server.controller.internal.AbstractResourceProvider.invokeWithRetry(AbstractResourceProvider.java:450)
> 	at org.apache.ambari.server.controller.internal.AbstractResourceProvider.modifyResources(AbstractResourceProvider.java:331)
> {code}
> The in-memory collection is not thread safe.



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