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Posted to dev@ambari.apache.org by "Jonathan Hurley (JIRA)" <ji...@apache.org> on 2015/02/21 20:34:12 UTC
[jira] [Updated] (AMBARI-9738) Ambari Server Deadlocks During
Cluster Provisioning
[ https://issues.apache.org/jira/browse/AMBARI-9738?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Jonathan Hurley updated AMBARI-9738:
------------------------------------
Attachment: ambariserverstack.txt
> Ambari Server Deadlocks During Cluster Provisioning
> ---------------------------------------------------
>
> Key: AMBARI-9738
> URL: https://issues.apache.org/jira/browse/AMBARI-9738
> Project: Ambari
> Issue Type: Bug
> Affects Versions: 2.0.0
> Reporter: Jonathan Hurley
> Assignee: Jonathan Hurley
> Priority: Critical
> Fix For: 2.0.0
>
> Attachments: ambariserverstack.txt
>
>
> During provisioning of a cluster, a deadlock scenario can occur between {{ClusterImpl}} and {{ClustersImpl}}.
> {noformat}
> Thread-1
> Clusters.mapHostsToCluster (writeLock)
> Cluster.refresh (writeLock)
>
> Thread-2
> Cluster.convertToResponse (readLock)
> Clusters.getHost (readLock)
>
> Thread-1 Clusters.mapHostsToCluster (writeLock)
> Thread-2 Cluster.convertToResponse (readLock)
> Thread-1 Cluster.refresh (writeLock) (BLOCKED by Thread-2)
> Thread-2 Clusters.getHost (readLock) (BLOCKED by Thread-1)
> {noformat}
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