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https://issues.apache.org/jira/browse/HBASE-1155?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12667888#action_12667888
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Jim Kellerman commented on HBASE-1155:
--------------------------------------
The latest patch for HADOOP-4379 combined with HADOOP-5027solves the problems
that we have seen. As for Doug Judd's problem with getting the length of the
file, that is not an issue for HBase, as we do not look at the length of the
file.
> HLog flush does not invoke FSDataOutputStream.flush()
> -----------------------------------------------------
>
> Key: HBASE-1155
> URL: https://issues.apache.org/jira/browse/HBASE-1155
> Project: Hadoop HBase
> Issue Type: Bug
> Components: master, regionserver
> Affects Versions: 0.19.0
> Reporter: Jim Kellerman
> Assignee: Jim Kellerman
> Fix For: 0.19.1, 0.20.0
>
>
> In order to guarantee that an HLog sync() flushes the data to the HDFS, we
> will need to invoke FSDataOutputStream.sync() per HADOOP-4379.
> Currently, there is no access to the underlying FSDataOutputStream from
> SequenceFile.Writer, as it is a package private member.
> Waiting on HADOOP-4379 to see how this plays out.
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