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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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Lars Hofhansl updated HDFS-3979:
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Description:
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.
was: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 DN loses data that is has already acknowledged as persisted to a
client.
> Fix hsync and hflush semantics.
> -------------------------------
>
> Key: HDFS-3979
> URL: https://issues.apache.org/jira/browse/HDFS-3979
> Project: Hadoop HDFS
> Issue Type: Bug
> Reporter: Lars Hofhansl
> Assignee: Lars Hofhansl
> Attachments: hdfs-3979-sketch.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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