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  1. Hadoop HDFS
  2. HDFS-12319

DirectoryScanner will throw IllegalStateException when Multiple BP's are present

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Details

    • Bug
    • Status: Resolved
    • Blocker
    • Resolution: Fixed
    • None
    • 2.9.0, 3.0.0-beta1, 2.8.2, 2.7.8
    • None
    • None

    Description

      Scenario:
      Configure "dfs.datanode.directoryscan.interval" as 60 and start federated cluster atleast with two nameservices.

      2017-08-18 19:06:37,150 [java.util.concurrent.ThreadPoolExecutor$Worker@37d68b4e[State = -1, empty queue]] ERROR datanode.DirectoryScanner (DirectoryScanner.java:getDiskReport(551)) - Error compiling report for the volume, StorageId: DS-258b5e16-caa3-48c8-a0c8-b16934eb8a0c
      java.util.concurrent.ExecutionException: java.lang.IllegalStateException: StopWatch is already running
      	at java.util.concurrent.FutureTask.report(FutureTask.java:122)
      	at java.util.concurrent.FutureTask.get(FutureTask.java:192)
      	at org.apache.hadoop.hdfs.server.datanode.DirectoryScanner.getDiskReport(DirectoryScanner.java:542)
      	at org.apache.hadoop.hdfs.server.datanode.DirectoryScanner.scan(DirectoryScanner.java:392)
      	at org.apache.hadoop.hdfs.server.datanode.DirectoryScanner.reconcile(DirectoryScanner.java:373)
      	at org.apache.hadoop.hdfs.server.datanode.DirectoryScanner.run(DirectoryScanner.java:318)
      	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
      	at java.util.concurrent.FutureTask.runAndReset(FutureTask.java:308)
      	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:180)
      	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:294)
      	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
      	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
      	at java.lang.Thread.run(Thread.java:745)
      Caused by: java.lang.IllegalStateException: StopWatch is already running
      	at org.apache.hadoop.util.StopWatch.start(StopWatch.java:49)
      	at org.apache.hadoop.hdfs.server.datanode.DirectoryScanner$ReportCompiler.call(DirectoryScanner.java:612)
      	at org.apache.hadoop.hdfs.server.datanode.DirectoryScanner$ReportCompiler.call(DirectoryScanner.java:579)
      	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
      	... 3 more
      

      Attachments

        1. HDFS-12319-001.patch
          4 kB
          Brahma Reddy Battula
        2. HDFS-12319-002.patch
          5 kB
          Brahma Reddy Battula
        3. TestCase_to_Reproduce.patch
          2 kB
          Brahma Reddy Battula

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              brahmareddy Brahma Reddy Battula
              brahmareddy Brahma Reddy Battula
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                Created:
                Updated:
                Resolved: