[jira] [Commented] (AMBARI-17946) Initial Upgrade Checks Can Fail With ConcurrentModificationException

["Hadoop QA (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/AMBARI-17946?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15397529#comment-15397529 ] 

Hadoop QA commented on AMBARI-17946:
------------------------------------

{color:red}-1 overall{color}.  Here are the results of testing the latest attachment 
  http://issues.apache.org/jira/secure/attachment/12820704/AMBARI-17946.patch
  against trunk revision .

    {color:red}-1 patch{color}.  Top-level trunk compilation may be broken.

Console output: https://builds.apache.org/job/Ambari-trunk-test-patch/8201//console

This message is automatically generated.

> Initial Upgrade Checks Can Fail With ConcurrentModificationException
> --------------------------------------------------------------------
>
>                 Key: AMBARI-17946
>                 URL: https://issues.apache.org/jira/browse/AMBARI-17946
>             Project: Ambari
>          Issue Type: Bug
>          Components: ambari-server
>    Affects Versions: 2.2.0
>            Reporter: Jonathan Hurley
>            Assignee: Jonathan Hurley
>            Priority: Critical
>             Fix For: 2.4.0
>
>         Attachments: AMBARI-17946.patch
>
>
> Intermittently, the pre-stack upgrade checks will fail with a {{ConcurrentModificationException}}:
> {code}
>  WARNING: A HTTP GET method, public javax.ws.rs.core.Response org.apache.ambari.server.api.services.PreUpgradeCheckService.getPreUpgradeChecks(java.lang.String,javax.ws.rs.core.HttpHeaders,javax.ws.rs.core.UriInfo), should not consume any entity.
> 27 Jul 2016 04:21:27,035 ERROR [ambari-client-thread-35] CheckHelper:120 - Check HOSTS_MASTER_MAINTENANCE failed
> java.util.ConcurrentModificationException
> 	at java.util.LinkedHashMap$LinkedHashIterator.nextNode(LinkedHashMap.java:711)
> 	at java.util.LinkedHashMap$LinkedValueIterator.next(LinkedHashMap.java:739)
> 	at org.apache.ambari.server.checks.HostsMasterMaintenanceCheck.perform(HostsMasterMaintenanceCheck.java:83)
> 	at org.apache.ambari.server.state.CheckHelper.performChecks(CheckHelper.java:99)
> 	at org.apache.ambari.server.controller.internal.PreUpgradeCheckResourceProvider.getResources(PreUpgradeCheckResourceProvider.java:192)
> 	at org.apache.ambari.server.controller.internal.ClusterControllerImpl$ExtendedResourceProviderWrapper.queryForResources(ClusterControllerImpl.java:966)
> 	at org.apache.ambari.server.controller.internal.ClusterControllerImpl.getResources(ClusterControllerImpl.java:141)
> {code}



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