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https://issues.apache.org/jira/browse/HADOOP-15074?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16519699#comment-16519699
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Arpit Agarwal commented on HADOOP-15074:
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Hi [~harishjp], can you check whether the returned {{FSDataOutputStream}} is an
instance of {{HdfsDataOutputStream}}. If so, then you can invoke
_hsync(EnumSet<SyncFlag> syncFlags)_ on it. HdfsDataOutputStream is a public
interface.
I don't usually like suggesting reflection, but in this case it may be the
cleanest solution.
> SequenceFile#Writer flush does not update the length of the written file.
> -------------------------------------------------------------------------
>
> Key: HADOOP-15074
> URL: https://issues.apache.org/jira/browse/HADOOP-15074
> Project: Hadoop Common
> Issue Type: Bug
> Reporter: Mukul Kumar Singh
> Assignee: Shashikant Banerjee
> Priority: Major
>
> SequenceFile#Writer flush does not update the length of the file. This
> happens because as part of the flush, {{UPDATE_LENGTH}} flag is not passed to
> the DFSOutputStream#hsync.
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