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https://issues.apache.org/jira/browse/HDFS-7268?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Junping Du updated HDFS-7268:
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Target Version/s: (was: 2.8.0)
> Can't append with SYNC_BLOCK
> ----------------------------
>
> Key: HDFS-7268
> URL: https://issues.apache.org/jira/browse/HDFS-7268
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: hdfs-client
> Affects Versions: 2.4.1
> Reporter: Bogdan Raducanu
>
> It seems to me that currently it's not possible to start appending to a file
> with CreateFlag.SYNC_BLOCK behavior (i.e. hsync after each block). So, I
> think, the only way to guarantee durability when appending is if the user
> calls hsync at the end of each block.
> FileSystem.append doesn't accept a CreateFlag argument.
> FileSystem.create, on the other hand, ignores CreateFlag.APPEND afaics. I
> think the plan in HDFS-744 was to use this method if durability is needed.
> It seems it might work through FileContext but in the end DFSOutputStream
> never sets shouldSyncBlock when appending anyway.
> Or am I missing something?
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