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https://issues.apache.org/jira/browse/HADOOP-8365?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Suresh Srinivas updated HADOOP-8365:
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Release Note: This patch enables durable sync by default. Installation
where HBase was not used, that used to run without setting "dfs.support.append"
or setting it to false explicitly in the configuration, must add a new flag
"dfs.durable.sync" and set it to false to preserve the previous semantics.
(was: This patch enables durable sync by default. Installation where HBase was
not used, that used to run without setting {{dfs.support.append}} or setting it
to false in the configurate, must set {{dfs.durable.sync}} to false to preserve
the previous semantics.)
> Add flag to disable durable sync
> --------------------------------
>
> Key: HADOOP-8365
> URL: https://issues.apache.org/jira/browse/HADOOP-8365
> Project: Hadoop Common
> Issue Type: Improvement
> Affects Versions: 1.1.0
> Reporter: Eli Collins
> Assignee: Eli Collins
> Priority: Blocker
> Fix For: 1.1.0
>
> Attachments: hadoop-8365.txt, hadoop-8365.txt
>
>
> Per HADOOP-8230 there's a request for a flag to disable the sync code paths
> that dfs.support.append used to enable. The sync method itself will still be
> available and have a broken implementation as that was the behavior before
> HADOOP-8230. This config flag should default to false as the primary
> motivation for HADOOP-8230 is so HBase works out-of-the-box with Hadoop 1.1.
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