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Posted to issues@ambari.apache.org by "Dmytro Sen (JIRA)" <ji...@apache.org> on 2016/04/22 09:22:13 UTC
[jira] [Assigned] (AMBARI-15777) Namenode startup does not detect
HA when multiple nameservices defined
[ https://issues.apache.org/jira/browse/AMBARI-15777?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Dmytro Sen reassigned AMBARI-15777:
-----------------------------------
Assignee: Dmytro Sen
> Namenode startup does not detect HA when multiple nameservices defined
> ----------------------------------------------------------------------
>
> Key: AMBARI-15777
> URL: https://issues.apache.org/jira/browse/AMBARI-15777
> Project: Ambari
> Issue Type: Bug
> Components: ambari-server
> Affects Versions: trunk
> Reporter: Alex Bush
> Assignee: Dmytro Sen
> Fix For: 2.4.0
>
>
> When specifying multiple nameservices in dfs.nameservices, the correct nameservice and HA configuration is not detected resulting in a slow namenode startup and a message of:
> 'Must wait to leave safemode since High Availability is not enabled.'
> This message is seen in:
> https://github.com/apache/ambari/blob/6626796191833c77130302653d3afad5f4bf8aec/ambari-server/src/main/resources/common-services/HDFS/2.1.0.2.0/package/scripts/hdfs_namenode.py#L186
> And is caused by:
> https://github.com/apache/ambari/blob/291b7cbf5852db3fa37f4f180158d0958241e05b/ambari-server/src/main/resources/common-services/HDFS/2.1.0.2.0/package/scripts/params_linux.py#L243
> dfs_ha_nameservices = default("/configurations/hdfs-site/dfs.nameservices", None)
> This line should take into account dfs.internal.nameservices and perhaps choosing the first entry in dfs.nameservices if this field is comma separated and if dfs.internal.nameservices is not set.
> The change should also be mirrored here:
> https://github.com/apache/ambari/blob/291b7cbf5852db3fa37f4f180158d0958241e05b/ambari-server/src/main/resources/common-services/HDFS/2.1.0.2.0/package/scripts/params_windows.py#L45
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