[jira] [Updated] (AMBARI-12138) Set dfs.client.retry.policy.enabled property to true when HDFS HA is enabled

["sam liu (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/AMBARI-12138?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

sam liu updated AMBARI-12138:
-----------------------------
    Attachment: AMBARI-12138.patch

With this patch:
- In the HDFS HA Enabling Wizard GUI, added the new property  'dfs.client.retry.policy.enabled' with true value is selected
- After enabling HA, the new property  'dfs.client.retry.policy.enabled' is added in the hdfs-site.xml file and set as true as below:
    <property>
      <name>dfs.client.retry.policy.enabled</name>
      <value>true</value>
    </property>

> Set dfs.client.retry.policy.enabled property to true when HDFS HA is enabled
> ----------------------------------------------------------------------------
>
>                 Key: AMBARI-12138
>                 URL: https://issues.apache.org/jira/browse/AMBARI-12138
>             Project: Ambari
>          Issue Type: Improvement
>          Components: ambari-web
>    Affects Versions: 2.1.0
>            Reporter: sam liu
>         Attachments: AMBARI-12138.patch
>
>
> After enabling HDFS HA, hdfs-site.xml does not include property  dfs.client.retry.policy.enabled and 'hdfs getconf -confKey dfs.client.retry.policy.enabled' returns empty value. 
> The property dfs.client.retry.policy.enabled is important when HA is enabled, as it enables HDFS client retry in case of NameNode failure. So, after enabling HDFS HA, Ambari should set this property to true in hdfs-site.xml.



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