ambari-dev mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Ted Yu (JIRA)" <j...@apache.org>
Subject [jira] [Created] (AMBARI-13066) Turn on fsync on close when HBase is installed
Date Thu, 10 Sep 2015 22:47:45 GMT
Ted Yu created AMBARI-13066:
-------------------------------

             Summary: Turn on fsync on close when HBase is installed
                 Key: AMBARI-13066
                 URL: https://issues.apache.org/jira/browse/AMBARI-13066
             Project: Ambari
          Issue Type: Improvement
            Reporter: Ted Yu


The following two options should be turned on by default when HBase is installed:

dfs.datanode.synconclose=true - this is to avoid data loss and guarantee HDFS correctness.
By default, HDFS does not fsync file on close.
​dfs.datanode.sync.behind.writes=true - sync partial blocks to disk, always *must* when
sync-on-close is on for performance.

Thanks to [~arpitagarwal] for confirmation




--
This message was sent by Atlassian JIRA
(v6.3.4#6332)

Mime
View raw message