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https://issues.apache.org/jira/browse/HDDS-635?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Mukul Kumar Singh resolved HDDS-635.
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Resolution: Duplicate
> On Datanode restart, DatanodeStateMachine throws NullPointerException
> ---------------------------------------------------------------------
>
> Key: HDDS-635
> URL: https://issues.apache.org/jira/browse/HDDS-635
> Project: Hadoop Distributed Data Store
> Issue Type: Bug
> Reporter: Hanisha Koneru
> Assignee: Hanisha Koneru
> Priority: Major
>
> {code:java}
> 2018-10-11 12:08:33,676 ERROR
> org.apache.hadoop.ozone.container.common.statemachine.DatanodeStateMachine:
> Unable to start the DatanodeState Machine
> java.io.IOException: Premature EOF from inputStream
> at org.apache.ratis.util.IOUtils.readFully(IOUtils.java:100)
> at org.apache.ratis.server.storage.LogReader.decodeEntry(LogReader.java:250)
> at org.apache.ratis.server.storage.LogReader.readEntry(LogReader.java:155)
> at
> org.apache.ratis.server.storage.LogInputStream.nextEntry(LogInputStream.java:128)
> at
> org.apache.ratis.server.storage.LogSegment.readSegmentFile(LogSegment.java:110)
> at org.apache.ratis.server.storage.LogSegment.loadSegment(LogSegment.java:132)
> at
> org.apache.ratis.server.storage.RaftLogCache.loadSegment(RaftLogCache.java:110)
> at
> org.apache.ratis.server.storage.SegmentedRaftLog.loadLogSegments(SegmentedRaftLog.java:155)
> at
> org.apache.ratis.server.storage.SegmentedRaftLog.open(SegmentedRaftLog.java:123)
> at org.apache.ratis.server.impl.ServerState.initLog(ServerState.java:162)
> at org.apache.ratis.server.impl.ServerState.<init>(ServerState.java:110)
> at org.apache.ratis.server.impl.RaftServerImpl.<init>(RaftServerImpl.java:106)
> at
> org.apache.ratis.server.impl.RaftServerProxy.lambda$newRaftServerImpl$0(RaftServerProxy.java:191)
> at
> java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1590)
> at
> java.util.concurrent.CompletableFuture$AsyncSupply.exec(CompletableFuture.java:1582)
> at java.util.concurrent.ForkJoinTask.doExec(ForkJoinTask.java:289)
> at java.util.concurrent.ForkJoinPool$WorkQueue.runTask(ForkJoinPool.java:1056)
> at java.util.concurrent.ForkJoinPool.runWorker(ForkJoinPool.java:1692)
> at
> java.util.concurrent.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:157)
> 2018-10-11 12:08:33,677 ERROR org.apache.hadoop.ozone.HddsDatanodeService:
> Exception in HddsDatanodeService.
> java.lang.NullPointerException
> at
> org.apache.hadoop.ozone.container.common.statemachine.DatanodeStateMachine.join(DatanodeStateMachine.java:332)
> at
> org.apache.hadoop.ozone.HddsDatanodeService.join(HddsDatanodeService.java:191)
> at
> org.apache.hadoop.ozone.HddsDatanodeService.main(HddsDatanodeService.java:250)
> 2018-10-11 12:08:33,678 INFO org.apache.hadoop.util.ExitUtil: Exiting with
> status 1: java.lang.NullPointerException{code}
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