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From "Xiao Chen (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HDFS-12383) Re-encryption updater should handle canceled tasks
Date Thu, 31 Aug 2017 20:44:00 GMT
Xiao Chen created HDFS-12383:
--------------------------------

             Summary: Re-encryption updater should handle canceled tasks 
                 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


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 cancelled tasks.



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