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https://issues.apache.org/jira/browse/HDFS-4402?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13553312#comment-13553312
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Colin Patrick McCabe commented on HDFS-4402:
--------------------------------------------
The previous {{BlockReaderLocal}} also used an unbuffered input stream. Now
seemed like as good a time as any to improve this, however.
> some small DomainSocket fixes: avoid findbugs warning, change log level, etc.
> -----------------------------------------------------------------------------
>
> Key: HDFS-4402
> URL: https://issues.apache.org/jira/browse/HDFS-4402
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Reporter: Colin Patrick McCabe
> Priority: Minor
> Attachments: HDFS-4402.001.patch
>
>
> Some miscellaneous fixes:
> * findbugs complains about a short-circuit operator in {{DomainSocket.java}}
> for some reason. We don't need it (it doesn't help optimization since the
> expressions lack side-effects), so let's ditch it to avoid the findbugs
> warning.
> * change the log level of one error message to warn
> * BlockReaderLocal should use a BufferedInputStream to read the metadata file
> header, to avoid doing multiple small reads.
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