[
https://issues.apache.org/jira/browse/RATIS-1887?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17764790#comment-17764790
]
Tsz-wo Sze commented on RATIS-1887:
-----------------------------------
bq. ... 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
Is it the case that the segment log-784848_809981 mentioned above was indeed
the file log-784848_822559? It seems that the file was truncated but not moved.
{code}
LOG.info("{}: Truncated log file {} to length {} and moved it to {}",
name,
fileToTruncate, segments.getToTruncate().getTargetLength(),
dstFile);
{code}
Did you see this log message? 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].
> 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.
--
This message was sent by Atlassian Jira
(v8.20.10#820010)
