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https://issues.apache.org/jira/browse/HDFS-12383?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Xiao Chen updated HDFS-12383:
-----------------------------
Status: Patch Available (was: Open)
> Re-encryption updater should handle canceled tasks better
> ---------------------------------------------------------
>
> Key: HDFS-12383
> URL: https://issues.apache.org/jira/browse/HDFS-12383
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: encryption
> Affects Versions: 3.0.0-beta1
> Reporter: Xiao Chen
> Assignee: Xiao Chen
> Attachments: HDFS-12383.01.patch
>
>
> Seen an instance where the re-encryption updater exited due to an exception,
> and later tasks no longer executes. Logs below:
> {noformat}
> 2017-08-31 09:54:08,104 INFO
> org.apache.hadoop.hdfs.server.namenode.EncryptionZoneManager: Zone
> /tmp/encryption-zone-3(16819) is submitted for re-encryption.
> 2017-08-31 09:54:08,104 INFO
> org.apache.hadoop.hdfs.server.namenode.ReencryptionHandler: Executing
> re-encrypt commands on zone 16819. Current zones:[zone:16787 state:Completed
> lastProcessed:null filesReencrypted:1 fileReencryptionFailures:0][zone:16813
> state:Completed lastProcessed:null filesReencrypted:1
> fileReencryptionFailures:0][zone:16819 state:Submitted lastProcessed:null
> filesReencrypted:0 fileReencryptionFailures:0]
> 2017-08-31 09:54:08,105 INFO
> org.apache.hadoop.hdfs.protocol.ReencryptionStatus: Zone 16819 starts
> re-encryption processing
> 2017-08-31 09:54:08,105 INFO
> org.apache.hadoop.hdfs.server.namenode.ReencryptionHandler: Re-encrypting
> zone /tmp/encryption-zone-3(id=16819)
> 2017-08-31 09:54:08,105 INFO
> org.apache.hadoop.hdfs.server.namenode.ReencryptionHandler: Submitted batch
> (start:/tmp/encryption-zone-3/data1, size:1) of zone 16819 to re-encrypt.
> 2017-08-31 09:54:08,105 INFO
> org.apache.hadoop.hdfs.server.namenode.ReencryptionHandler: Submission
> completed of zone 16819 for re-encryption.
> 2017-08-31 09:54:08,105 INFO
> org.apache.hadoop.hdfs.server.namenode.ReencryptionHandler: Processing
> batched re-encryption for zone 16819, batch size 1,
> start:/tmp/encryption-zone-3/data1
> 2017-08-31 09:54:08,979 INFO BlockStateChange: BLOCK* BlockManager: ask
> 172.26.1.71:20002 to delete [blk_1073742291_1467]
> 2017-08-31 09:54:18,295 INFO
> org.apache.hadoop.hdfs.server.namenode.ReencryptionUpdater: Cancelling 1
> re-encryption tasks
> 2017-08-31 09:54:18,295 INFO
> org.apache.hadoop.hdfs.server.namenode.EncryptionZoneManager: Cancelled zone
> /tmp/encryption-zone-3(16819) for re-encryption.
> 2017-08-31 09:54:18,295 INFO
> org.apache.hadoop.hdfs.protocol.ReencryptionStatus: Zone 16819 completed
> re-encryption.
> 2017-08-31 09:54:18,296 INFO
> org.apache.hadoop.hdfs.server.namenode.ReencryptionHandler: Completed
> re-encrypting one batch of 1 edeks from KMS, time consumed: 10.19 s, start:
> /tmp/encryption-zone-3/data1.
> 2017-08-31 09:54:18,296 ERROR
> org.apache.hadoop.hdfs.server.namenode.ReencryptionUpdater: Re-encryption
> updater thread exiting.
> java.util.concurrent.CancellationException
> at java.util.concurrent.FutureTask.report(FutureTask.java:121)
> at java.util.concurrent.FutureTask.get(FutureTask.java:192)
> at
> org.apache.hadoop.hdfs.server.namenode.ReencryptionUpdater.takeAndProcessTasks(ReencryptionUpdater.java:404)
> at
> org.apache.hadoop.hdfs.server.namenode.ReencryptionUpdater.run(ReencryptionUpdater.java:250)
> 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}
> Updater should be fixed to handle canceled tasks better.
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