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Posted to issues@ratis.apache.org by "Mukul Kumar Singh (JIRA)" <ji...@apache.org> on 2019/05/30 09:58:00 UTC

[jira] [Updated] (RATIS-577) NPE in LogAppender while creating a new request.

     [ https://issues.apache.org/jira/browse/RATIS-577?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Mukul Kumar Singh updated RATIS-577:
------------------------------------
    Labels: MiniOzoneChaosCluster  (was: )

> NPE in LogAppender while creating a new request.
> ------------------------------------------------
>
>                 Key: RATIS-577
>                 URL: https://issues.apache.org/jira/browse/RATIS-577
>             Project: Ratis
>          Issue Type: Bug
>          Components: server
>    Affects Versions: 0.3.0
>            Reporter: Mukul Kumar Singh
>            Priority: Major
>              Labels: MiniOzoneChaosCluster
>
> Found the following NPE in the LogAppender while creating a new request.
> {code}
> 2019-05-30 08:10:44,275 ERROR impl.LogAppender (LogAppender.java:run(90)) - org.apache.ratis.server.impl.LogAppender$AppenderDaemon@5e4b44cc unexpected exception
> java.lang.NullPointerException
>         at java.util.Objects.requireNonNull(Objects.java:203)
>         at java.util.Optional.<init>(Optional.java:96)
>         at java.util.Optional.of(Optional.java:108)
>         at org.apache.ratis.server.impl.ServerProtoUtils.getStateMachineEntry(ServerProtoUtils.java:197)
>         at org.apache.ratis.server.impl.ServerProtoUtils.getStateMachineData(ServerProtoUtils.java:205)
>         at org.apache.ratis.server.impl.ServerProtoUtils.shouldReadStateMachineData(ServerProtoUtils.java:210)
>         at org.apache.ratis.server.raftlog.segmented.SegmentedRaftLog.getEntryWithData(SegmentedRaftLog.java:206)
>         at org.apache.ratis.server.impl.LogAppender.createRequest(LogAppender.java:209)
>         at org.apache.ratis.grpc.server.GrpcLogAppender.appendLog(GrpcLogAppender.java:169)
>         at org.apache.ratis.grpc.server.GrpcLogAppender.runAppenderImpl(GrpcLogAppender.java:113)
>         at org.apache.ratis.server.impl.LogAppender$AppenderDaemon.run(LogAppender.java:80)
>         at java.lang.Thread.run(Thread.java:748)
> {code}



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