[jira] [Commented] (AMBARI-16278) Give more time for HBase system tables to be assigned

["Yao Lei (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/AMBARI-16278?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15946617#comment-15946617 ] 

Yao Lei commented on AMBARI-16278:
----------------------------------

I find this two properties have been fixed in stacks/HDP/2.6/services/HBASE/configuration/hbase-site.xml of trunk

> Give more time for HBase system tables to be assigned
> -----------------------------------------------------
>
>                 Key: AMBARI-16278
>                 URL: https://issues.apache.org/jira/browse/AMBARI-16278
>             Project: Ambari
>          Issue Type: Improvement
>            Reporter: Ted Yu
>
> We have observed extended cluster downtime due to HBase system tables not being assigned at cluster start up.
> The default values for the following two parameters are too low:
> hbase.regionserver.executor.openregion.threads (default: 3)
> hbase.master.namespace.init.timeout (default: 300000)
> We set hbase.regionserver.executor.openregion.threads=200 and hbase.master.namespace.init.timeout=2400000 in some case to work around HBASE-14190.
> Ambari can use 20 for hbase.regionserver.executor.openregion.threads and 2400000 for hbase.master.namespace.init.timeout as default value.



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