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https://issues.apache.org/jira/browse/AMBARI-13066?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Ted Yu updated AMBARI-13066:
----------------------------
Description:
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
was:
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
> 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
> Priority: Minor
>
> 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
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