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https://issues.apache.org/jira/browse/HDFS-11741?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16033304#comment-16033304
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Hadoop QA commented on HDFS-11741:
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| {color:blue}0{color} | {color:blue} reexec {color} | {color:blue} 0m
0s{color} | {color:blue} Docker mode activated. {color} |
| {color:red}-1{color} | {color:red} docker {color} | {color:red} 8m
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|| Subsystem || Report/Notes ||
| JIRA Issue | HDFS-11741 |
| JIRA Patch URL |
https://issues.apache.org/jira/secure/attachment/12870697/HDFS-11741.branch-2.01.patch
|
| Console output |
https://builds.apache.org/job/PreCommit-HDFS-Build/19727/console |
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This message was automatically generated.
> Long running balancer may fail due to expired DataEncryptionKey
> ---------------------------------------------------------------
>
> Key: HDFS-11741
> URL: https://issues.apache.org/jira/browse/HDFS-11741
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: balancer & mover
> Environment: CDH5.8.2, Kerberos, Data transfer encryption enabled.
> Balancer login using keytab
> Reporter: Wei-Chiu Chuang
> Assignee: Wei-Chiu Chuang
> Attachments: block keys.png, HDFS-11741.001.patch,
> HDFS-11741.002.patch, HDFS-11741.003.patch, HDFS-11741.004.patch,
> HDFS-11741.005.patch, HDFS-11741.06.patch, HDFS-11741.07.patch,
> HDFS-11741.08.patch, HDFS-11741.branch-2.01.patch
>
>
> We found a long running balancer may fail despite using keytab, because
> KeyManager returns expired DataEncryptionKey, and it throws the following
> exception:
> {noformat}
> 2017-04-30 05:03:58,661 WARN [pool-1464-thread-10] balancer.Dispatcher
> (Dispatcher.java:dispatch(325)) - Failed to move blk_1067352712_3913241 with
> size=546650 from 10.0.0.134:50010:DISK to 10.0.0.98:50010:DISK through
> 10.0.0.134:50010
> org.apache.hadoop.hdfs.protocol.datatransfer.InvalidEncryptionKeyException:
> Can't re-compute encryption key for nonce, since the required block key
> (keyID=1005215027) doesn't exist. Current key: 1005215030
> at
> org.apache.hadoop.hdfs.protocol.datatransfer.sasl.DataTransferSaslUtil.readSaslMessageAndNegotiatedCipherOption(DataTransferSaslUtil.java:417)
> at
> org.apache.hadoop.hdfs.protocol.datatransfer.sasl.SaslDataTransferClient.doSaslHandshake(SaslDataTransferClient.java:474)
> at
> org.apache.hadoop.hdfs.protocol.datatransfer.sasl.SaslDataTransferClient.getEncryptedStreams(SaslDataTransferClient.java:299)
> at
> org.apache.hadoop.hdfs.protocol.datatransfer.sasl.SaslDataTransferClient.send(SaslDataTransferClient.java:242)
> at
> org.apache.hadoop.hdfs.protocol.datatransfer.sasl.SaslDataTransferClient.checkTrustAndSend(SaslDataTransferClient.java:211)
> at
> org.apache.hadoop.hdfs.protocol.datatransfer.sasl.SaslDataTransferClient.socketSend(SaslDataTransferClient.java:183)
> at
> org.apache.hadoop.hdfs.server.balancer.Dispatcher$PendingMove.dispatch(Dispatcher.java:311)
> at
> org.apache.hadoop.hdfs.server.balancer.Dispatcher$PendingMove.access$2300(Dispatcher.java:182)
> at
> org.apache.hadoop.hdfs.server.balancer.Dispatcher$1.run(Dispatcher.java:899)
> at
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
> at
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
> at java.lang.Thread.run(Thread.java:745)
> {noformat}
> This bug is similar in nature to HDFS-10609. While balancer KeyManager
> actively synchronizes itself with NameNode w.r.t block keys, it does not
> update DataEncryptionKey accordingly.
> In a specific cluster, with Kerberos ticket life time 10 hours, and default
> block token expiration/life time 10 hours, a long running balancer failed
> after 20~30 hours.
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