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https://issues.apache.org/jira/browse/HDFS-11804?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16040906#comment-16040906
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Rushabh S Shah edited comment on HDFS-11804 at 6/7/17 1:50 PM:
---------------------------------------------------------------
Added new patch to address checkstyle warnings.
The test failures from the previous build are unrelated :
||Failed test||Comment||
|hadoop.fs.viewfs.TestViewFileSystemWithAuthorityLocalFileSystem |Passing
locally|
|hadoop.hdfs.TestAclsEndToEnd |Created HDFS-11944|
|hadoop.hdfs.server.datanode.TestDataNodeVolumeFailure|Passing locally|
|hadoop.hdfs.server.namenode.TestDecommissioningStatus|Passing locally|
|hadoop.hdfs.TestDFSStripedOutputStreamWithFailure150|Passing locally|
|hadoop.hdfs.TestDFSStripedOutputStreamWithFailureWithRandomECPolicy|Passing
locally|
|hadoop.hdfs.TestDFSStripedInputStreamWithRandomECPolicy|Passing locally|
Also none of the findbugs warnings are related to my patch.
[~xiaochen] [~daryn] please review the latest patch.
was (Author: shahrs87):
Added new patch to address checkstyle warnings.
The test failures from the previous build are unrelated :
||Failed test||Comment||
|hadoop.fs.viewfs.TestViewFileSystemWithAuthorityLocalFileSystem |Passing
locally|
|hadoop.hdfs.TestAclsEndToEnd |Created HDFS-11944|
|hadoop.hdfs.server.datanode.TestDataNodeVolumeFailure|Passing locally|
|hadoop.hdfs.server.namenode.TestDecommissioningStatus|Passing locally|
|hadoop.hdfs.TestDFSStripedOutputStreamWithFailure150|Passing locally|
|hadoop.hdfs.TestDFSStripedOutputStreamWithFailureWithRandomECPolicy|Passing
locally|
|hadoop.hdfs.TestDFSStripedInputStreamWithRandomECPolicy|Passing locally|
[~xiaochen] [~daryn] please review the latest patch.
> KMS client needs retry logic
> ----------------------------
>
> Key: HDFS-11804
> URL: https://issues.apache.org/jira/browse/HDFS-11804
> Project: Hadoop HDFS
> Issue Type: Bug
> Affects Versions: 2.6.0
> Reporter: Rushabh S Shah
> Assignee: Rushabh S Shah
> Attachments: HDFS-11804-trunk-1.patch, HDFS-11804-trunk-2.patch,
> HDFS-11804-trunk-3.patch, HDFS-11804-trunk.patch
>
>
> The kms client appears to have no retry logic – at all. It's completely
> decoupled from the ipc retry logic. This has major impacts if the KMS is
> unreachable for any reason, including but not limited to network connection
> issues, timeouts, the +restart during an upgrade+.
> This has some major ramifications:
> # Jobs may fail to submit, although oozie resubmit logic should mask it
> # Non-oozie launchers may experience higher rates if they do not already have
> retry logic.
> # Tasks reading EZ files will fail, probably be masked by framework reattempts
> # EZ file creation fails after creating a 0-length file – client receives
> EDEK in the create response, then fails when decrypting the EDEK
> # Bulk hadoop fs copies, and maybe distcp, will prematurely fail
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