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https://issues.apache.org/jira/browse/HDFS-5746?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13888392#comment-13888392
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Colin Patrick McCabe commented on HDFS-5746:
--------------------------------------------
It's frustrating to have so many flaky tests.
TestNameNodeHttpServer is a "port in use" failure. Not related.
TestCacheDirectives#testCacheManagerRestart is not related, since this patch
doesn't change that code path at all. The issue seems to be that the test
directory got changed out from under the test, and the blockID changed. This
suggests a concurrent test messed things up.
I'm going to commit in a few minutes. Thanks for the reviews, Andrew.
> add ShortCircuitSharedMemorySegment
> -----------------------------------
>
> Key: HDFS-5746
> URL: https://issues.apache.org/jira/browse/HDFS-5746
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Components: datanode, hdfs-client
> Reporter: Colin Patrick McCabe
> Assignee: Colin Patrick McCabe
> Fix For: 3.0.0
>
> Attachments: HDFS-5746.001.patch, HDFS-5746.002.patch,
> HDFS-5746.003.patch, HDFS-5746.004.patch, HDFS-5746.005.patch,
> HDFS-5746.006.patch, HDFS-5746.007.patch, HDFS-5746.008.patch
>
>
> Add ShortCircuitSharedMemorySegment, which will be used to communicate
> information between the datanode and the client about whether a replica is
> mlocked.
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