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https://issues.apache.org/jira/browse/HDFS-6808?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14141533#comment-14141533
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Lei (Eddy) Xu commented on HDFS-6808:
-------------------------------------
Hi, I've run those failed tests on my local machine with the patch applied to
trunk.
TestWebHdfsFileSystemContract, TestEncryptionZonesWithKMS and
TestPipelinesFailover run successfully.
TestJournalNode is failed with outputs:
{noformat}
Failed tests:
TestJournalNode.testFailToStartWithBadConfig:290->assertJNFailsToStart:300
Expected to find 'Can not create directory' but got unexpected
exception:org.apache.hadoop.util.DiskChecker$DiskErrorException: Cannot create
directory: /proc/does-not-exist
at org.apache.hadoop.util.DiskChecker.checkDir(DiskChecker.java:105)
....
{noformat}
Looks like no related to HDFS-6808.
{{TestStorageMover}} failed as the same as running it on trunk and it seems to
fail in other JIRAs. So I think it is not related as well.
> Add command line option to ask DataNode reload configuration.
> -------------------------------------------------------------
>
> Key: HDFS-6808
> URL: https://issues.apache.org/jira/browse/HDFS-6808
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Components: datanode
> Affects Versions: 2.5.0
> Reporter: Lei (Eddy) Xu
> Assignee: Lei (Eddy) Xu
> Attachments: HDFS-6808.000.combo.patch, HDFS-6808.000.patch,
> HDFS-6808.001.combo.patch, HDFS-6808.001.patch, HDFS-6808.002.combo.patch,
> HDFS-6808.002.patch, HDFS-6808.003.combo.txt, HDFS-6808.003.patch,
> HDFS-6808.004.combo.patch, HDFS-6808.004.patch, HDFS-6808.005.combo.patch,
> HDFS-6808.005.patch, HDFS-6808.006.combo.patch, HDFS-6808.006.patch,
> HDFS-6808.007.combo.patch, HDFS-6808.007.patch, HDFS-6808.008.combo.patch,
> HDFS-6808.008.patch, HDFS-6808.009.combo.patch, HDFS-6808.009.patch,
> HDFS-6808.010.patch, HDFS-6808.011.patch
>
>
> The workflow of dynamically changing data volumes on DataNode is
> # Users manually changed {{dfs.datanode.data.dir}} in the configuration file
> # User use command line to notify DN to reload configuration and updates its
> volumes.
> This work adds command line support to notify DN to reload configuration.
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