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From "John Speidel (JIRA)" <j...@apache.org>
Subject [jira] [Resolved] (AMBARI-12009) Occasional concurrent modification exception during BP provision of large clusters
Date Thu, 18 Jun 2015 22:51:01 GMT

     [ https://issues.apache.org/jira/browse/AMBARI-12009?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

John Speidel resolved AMBARI-12009.
-----------------------------------
    Resolution: Fixed

merged to trunk and branch-2.1

> Occasional concurrent modification exception during BP provision of large clusters
> ----------------------------------------------------------------------------------
>
>                 Key: AMBARI-12009
>                 URL: https://issues.apache.org/jira/browse/AMBARI-12009
>             Project: Ambari
>          Issue Type: Bug
>          Components: blueprints
>    Affects Versions: 2.1.0
>            Reporter: John Speidel
>            Assignee: John Speidel
>             Fix For: 2.1.0
>
>   Original Estimate: 1h
>  Remaining Estimate: 1h
>
> When provisioning large clusters via a blueprint, a concurrent modification exception
may occur occasionally because the topology manager task executor thread is attempting to
create a copy of a collection that is being modified in another thread. Although this exception
is caught in the BP provisioning code and retried successfully it is an easy fix and should
be fixed in 2.1 to avoid retries which slows down cluster provisioning.



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