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https://issues.apache.org/jira/browse/HDFS-3979?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Tsz Wo (Nicholas), SZE updated HDFS-3979:
-----------------------------------------
Component/s: (was: hdfs client)
Affects Version/s: (was: 0.23.0)
(was: 0.22.0)
Summary: Fix hsync semantics (was: Fix hsync and hflush
semantics.)
> Fix hsync semantics
> -------------------
>
> Key: HDFS-3979
> URL: https://issues.apache.org/jira/browse/HDFS-3979
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: data-node
> Affects Versions: 2.0.0-alpha
> Reporter: Lars Hofhansl
> Assignee: Lars Hofhansl
> Fix For: 2.0.3-alpha
>
> Attachments: hdfs-3979-sketch.txt, hdfs-3979-v2.txt,
> hdfs-3979-v3.txt, hdfs-3979-v4.txt
>
>
> See discussion in HDFS-744. The actual sync/flush operation in BlockReceiver
> is not on a synchronous path from the DFSClient, hence it is possible that a
> DN loses data that it has already acknowledged as persisted to a client.
> Edit: Spelling.
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