[jira] [Assigned] (RATIS-677) Datanode fail to function after stop

["Jitendra Nath Pandey (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/RATIS-677?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Jitendra Nath Pandey reassigned RATIS-677:
------------------------------------------

    Assignee: Tsz Wo Nicholas Sze

> Datanode fail to function after stop
> ------------------------------------
>
>                 Key: RATIS-677
>                 URL: https://issues.apache.org/jira/browse/RATIS-677
>             Project: Ratis
>          Issue Type: Bug
>            Reporter: Sammi Chen
>            Assignee: Tsz Wo Nicholas Sze
>            Priority: Major
>
> Steps:
> 1.  Run Teragen and generated a few GB data in a 4 datanodes cluster.  
> 2.  Stoped the datanodes through ./stop-ozone.sh.
> 3.  Changed the ozone binaries
> 4.  Start the cluster through ./start-ozone.sh.
> 5.  Two datanode regisisterd to SCM. Two datanode fail to appear at SCM side.  
> Checked these two failed node, datanode process is still running. In the logfile, I found a lot of following errors. 
> 2019-09-12 21:06:45,255 [Datanode State Machine Thread - 0] INFO       - Starting XceiverServerRatis ba17ad5e-714e-4d82-85d8-ff2e0737fcf9 at port 9858
> 2019-09-12 21:06:47,255 [Datanode State Machine Thread - 0] INFO       - Attempting to start container services.
> 2019-09-12 21:06:47,255 [Datanode State Machine Thread - 0] INFO       - Background container scanner has been disabled.
> 2019-09-12 21:06:47,255 [Datanode State Machine Thread - 0] INFO       - Starting XceiverServerRatis ba17ad5e-714e-4d82-85d8-ff2e0737fcf9 at port 9858
> 2019-09-12 21:06:47,255 [Datanode State Machine Thread - 0] ERROR      - Unable to communicate to SCM server at 10.120.110.183:9861 for past 2100 seconds.
> org.apache.ratis.protocol.ChecksumException: LogEntry is corrupt. Calculated checksum is -134141393 but read checksum 0
>         at org.apache.ratis.server.raftlog.segmented.SegmentedRaftLogReader.decodeEntry(SegmentedRaftLogReader.java:299)
>         at org.apache.ratis.server.raftlog.segmented.SegmentedRaftLogReader.readEntry(SegmentedRaftLogReader.java:185)
>         at org.apache.ratis.server.raftlog.segmented.SegmentedRaftLogInputStream.nextEntry(SegmentedRaftLogInputStream.java:121)
>         at org.apache.ratis.server.raftlog.segmented.LogSegment.readSegmentFile(LogSegment.java:94)
>         at org.apache.ratis.server.raftlog.segmented.LogSegment.loadSegment(LogSegment.java:117)
>         at org.apache.ratis.server.raftlog.segmented.SegmentedRaftLogCache.loadSegment(SegmentedRaftLogCache.java:310)
>         at org.apache.ratis.server.raftlog.segmented.SegmentedRaftLog.loadLogSegments(SegmentedRaftLog.java:234)
>         at org.apache.ratis.server.raftlog.segmented.SegmentedRaftLog.openImpl(SegmentedRaftLog.java:204)
>         at org.apache.ratis.server.raftlog.RaftLog.open(RaftLog.java:247)
>         at org.apache.ratis.server.impl.ServerState.initRaftLog(ServerState.java:190)
>         at org.apache.ratis.server.impl.ServerState.<init>(ServerState.java:120)
>         at org.apache.ratis.server.impl.RaftServerImpl.<init>(RaftServerImpl.java:110)
>         at org.apache.ratis.server.impl.RaftServerProxy.lambda$newRaftServerImpl$2(RaftServerProxy.java:208)
>         at java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1590)
>         at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
>         at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
>         at java.lang.Thread.run(Thread.java:748)



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