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https://issues.apache.org/jira/browse/RATIS-1887?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17764983#comment-17764983
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GuoHao edited comment on RATIS-1887 at 9/14/23 8:23 AM:
--------------------------------------------------------
Thank you for your attention to this issue.
Sorry [~szetszwo] my server adjusts the log level of the
`org.apache.ratis.server` package to WARN and can't find the logs. It is more
difficult to reproduce this problem again.
About this comment:
{quote}It not, the server seems to be killed right after
[truncate|https://github.com/apache/ratis/blob/b8ce6d1f6ea37ed3ff9f6e888d2357fe48490567/ratis-server/src/main/java/org/apache/ratis/server/raftlog/segmented/SegmentedRaftLogWorker.java#L664]
but before
[move|https://github.com/apache/ratis/blob/b8ce6d1f6ea37ed3ff9f6e888d2357fe48490567/ratis-server/src/main/java/org/apache/ratis/server/raftlog/segmented/SegmentedRaftLogWorker.java#L670].
{quote}
I agree with you that. For the fix, check out the comments below!
was (Author: nicholas niu):
Thank you for your attention to this issue.
Sorry [~szetszwo] my server adjusts the log level of the
`org.apache.ratis.server` package to WARN and can't find the logs.
{quote}It not, the server seems to be killed right after
[truncate|https://github.com/apache/ratis/blob/b8ce6d1f6ea37ed3ff9f6e888d2357fe48490567/ratis-server/src/main/java/org/apache/ratis/server/raftlog/segmented/SegmentedRaftLogWorker.java#L664]
but before
[move|https://github.com/apache/ratis/blob/b8ce6d1f6ea37ed3ff9f6e888d2357fe48490567/ratis-server/src/main/java/org/apache/ratis/server/raftlog/segmented/SegmentedRaftLogWorker.java#L670].
{quote}
I agree with you that.
> Gap between segement log
> ------------------------
>
> Key: RATIS-1887
> URL: https://issues.apache.org/jira/browse/RATIS-1887
> Project: Ratis
> Issue Type: Bug
> Reporter: GuoHao
> Priority: Critical
> Attachments: image-2023-09-08-10-18-36-198.png
>
>
>
> My version of ratis already includes this
> pr(https://issues.apache.org/jira/browse/RATIS-1763) and I am using a new
> raft server.
>
> Description:
> 1. i am using ratis version 2.5.1
> 2. the application software is ozone 1.3.0 scm ha
>
> scm error log:
> {code:java}
> Caused by: java.lang.IllegalStateException: Found a gap between logs: the
> last log segment log-784848_809981 ended at 809981 but the next log segment
> log-822560_856038 started at 822560
> at
> org.apache.ratis.util.Preconditions.assertTrue(Preconditions.java:72)
> at
> org.apache.ratis.server.raftlog.segmented.SegmentedRaftLogCache.validateAdding(SegmentedRaftLogCache.java:424)
> at
> org.apache.ratis.server.raftlog.segmented.SegmentedRaftLogCache.addSegment(SegmentedRaftLogCache.java:431)
> at
> org.apache.ratis.server.raftlog.segmented.SegmentedRaftLogCache.loadSegment(SegmentedRaftLogCache.java:384)
> at
> org.apache.ratis.server.raftlog.segmented.SegmentedRaftLog.loadLogSegments(SegmentedRaftLog.java:241)
> at
> org.apache.ratis.server.raftlog.segmented.SegmentedRaftLog.openImpl(SegmentedRaftLog.java:214)
> at
> org.apache.ratis.server.raftlog.RaftLogBase.open(RaftLogBase.java:251)
> at
> org.apache.ratis.server.impl.ServerState.initRaftLog(ServerState.java:239)
> at
> org.apache.ratis.server.impl.ServerState.initRaftLog(ServerState.java:220)
> at
> org.apache.ratis.server.impl.ServerState.lambda$new$5(ServerState.java:161)
> at
> org.apache.ratis.util.MemoizedSupplier.get(MemoizedSupplier.java:62)
> at
> org.apache.ratis.server.impl.ServerState.initialize(ServerState.java:177)
> at
> org.apache.ratis.server.impl.RaftServerImpl.start(RaftServerImpl.java:338)
> at
> org.apache.ratis.util.ConcurrentUtils.accept(ConcurrentUtils.java:188){code}
> segment log:
>
> !image-2023-09-08-10-18-36-198.png!
>
> The modification time of this segment log is greater than the modification
> time of the file with the larger index.
> The file size of this file seems to be larger than the other files, but it's
> not as big as the other files.
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