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https://issues.apache.org/jira/browse/ACCUMULO-1637?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Keith Turner updated ACCUMULO-1637:
-----------------------------------
Fix Version/s: 1.6.0
> Update HDFS append/sync precondition check for Hadoop 1.2
> ---------------------------------------------------------
>
> Key: ACCUMULO-1637
> URL: https://issues.apache.org/jira/browse/ACCUMULO-1637
> Project: Accumulo
> Issue Type: Bug
> Components: tserver
> Affects Versions: 1.5.0
> Reporter: Josh Elser
> Priority: Critical
> Fix For: 1.5.1, 1.6.0
>
>
> Apache Hadoop 1.2.0 ships with the durable sync enabled by default and the
> support append option marked as obsolete. Because of this, the check inside
> of TabletServer, meant to ensure that the HDFS WAL can function properly,
> incorrectly fails as it doesn't know that dfs.durable.sync is on by default.
> This can be worked around by specifying the old durable sync property in
> hdfs-site.xml:
> {noformat}
> <property>
> <name>dfs.durable.sync</name>
> <value>true</value>
> </property>
> {noformat}
> I'm not sure how to best way to address the differences between the newer and
> older versions of Hadoop and their differing append support.
> Thanks to Carlos Mundi for pointing this out on user@a.a.o
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