Lokesh Jain created RATIS-542:
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Summary: IllegalStateException on RaftServer restart
Key: RATIS-542
URL: https://issues.apache.org/jira/browse/RATIS-542
Project: Ratis
Issue Type: Bug
Reporter: Lokesh Jain
IllegalStateException stating "Unexpected gap in segments: binarySearch(-1)
returns -1, segments=[log-0_0]" when ozone datanode is restarted.
{code:java}
2019-05-05 06:26:47,217 INFO org.apache.ratis.server.impl.RaftServerProxy:
bf6fd9c4-100a-4035-98db-abe8e0a25fb9: remove LEADER group-AC345A757F02
bf6fd9c4-100a-4035-98db-abe8e0a25fb9:t2,
leader=bf6fd9c4-100a-4035-98db-abe8e0a25fb9,
voted=bf6fd9c4-100a-4035-98db-abe8e0a25fb9,
raftlog=bf6fd9c4-100a-4035-98db-abe8e0a25fb9-SegmentedRaftLog:OPENED:c2,f2,i2,
conf=1: [bf6fd9c4-100a-4035-98db-abe8e0a25fb9:172.27.76.77:9858], old=null
RUNNING
2019-05-05 06:26:47,230 INFO org.apache.ratis.server.impl.RaftServerImpl:
bf6fd9c4-100a-4035-98db-abe8e0a25fb9: shutdown group-AC345A757F02
2019-05-05 06:26:47,230 INFO org.apache.ratis.util.JmxRegister: Successfully
un-registered JMX Bean with object name
Ratis:service=RaftServer,group=group-AC345A757F02,id=bf6fd9c4-100a-4035-98db-abe8e0a25fb9
2019-05-05 06:26:47,231 INFO org.apache.ratis.server.impl.RoleInfo:
bf6fd9c4-100a-4035-98db-abe8e0a25fb9: shutdown LeaderState
2019-05-05 06:26:47,231 INFO org.apache.ratis.server.impl.PendingRequests:
bf6fd9c4-100a-4035-98db-abe8e0a25fb9-PendingRequests: sendNotLeaderResponses
2019-05-05 06:26:47,236 INFO org.apache.ratis.server.impl.StateMachineUpdater:
StateMachineUpdater-bf6fd9c4-100a-4035-98db-abe8e0a25fb9-group-AC345A757F02:
set stopIndex = 2
2019-05-05 06:26:47,239 ERROR org.apache.ratis.server.impl.StateMachineUpdater:
Terminating with exit status 2:
StateMachineUpdater-bf6fd9c4-100a-4035-98db-abe8e0a25fb9-group-AC345A757F02:
the StateMachineUpdater hits Throwable
java.lang.IllegalStateException: Unexpected gap in segments: binarySearch(-1)
returns -1, segments=[log-0_0]
at
org.apache.ratis.server.storage.RaftLogCache$LogSegmentList.purge(RaftLogCache.java:259)
at org.apache.ratis.server.storage.RaftLogCache.purge(RaftLogCache.java:461)
at
org.apache.ratis.server.storage.SegmentedRaftLog.purgeImpl(SegmentedRaftLog.java:273)
at org.apache.ratis.server.storage.RaftLog.purge(RaftLog.java:325)
at
org.apache.ratis.server.impl.StateMachineUpdater.run(StateMachineUpdater.java:187)
at java.lang.Thread.run(Thread.java:748)
2019-05-05 06:26:47,249 WARN org.apache.hadoop.fs.CachingGetSpaceUsed: Thread
Interrupted waiting to refresh disk information: sleep interrupted
{code}
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