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https://issues.apache.org/jira/browse/RATIS-1891?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
mango updated RATIS-1891:
-------------------------
Attachment: log_inprogress_377
> Gap between logs cause service startup failure
> ----------------------------------------------
>
> Key: RATIS-1891
> URL: https://issues.apache.org/jira/browse/RATIS-1891
> Project: Ratis
> Issue Type: Bug
> Reporter: Sammi Chen
> Priority: Critical
> Attachments: log_375-376, log_inprogress_375, log_inprogress_377
>
>
> This is the second raft gap problem reported by Guo Hao.
> {code:java}
> 2023-09-08 18:53:47,590 [Listener at test17/9860] ERROR
> org.apache.hadoop.hdds.scm.server.StorageContainerManagerStarter: SCM start
> failed with exception
> java.util.concurrent.CompletionException: java.lang.IllegalStateException:
> gap between start index 375 and first entry to append 377
> at
> java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:292)
> at
> java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:308)
> at
> java.util.concurrent.CompletableFuture.biRelay(CompletableFuture.java:1284)
> at
> java.util.concurrent.CompletableFuture$BiRelay.tryFire(CompletableFuture.java:1270)
> at
> java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:474)
> at
> java.util.concurrent.CompletableFuture.completeExceptionally(CompletableFuture.java:1977)
> at
> org.apache.ratis.util.ConcurrentUtils.accept(ConcurrentUtils.java:191)
> at
> org.apache.ratis.util.ConcurrentUtils.lambda$null$4(ConcurrentUtils.java:180)
> at
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
> at
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
> at java.lang.Thread.run(Thread.java:748)
> Caused by: java.lang.IllegalStateException: gap between start index 375 and
> first entry to append 377
> at
> org.apache.ratis.util.Preconditions.assertTrue(Preconditions.java:60)
> at
> org.apache.ratis.server.raftlog.segmented.LogSegment.append(LogSegment.java:313)
> at
> org.apache.ratis.server.raftlog.segmented.LogSegment.lambda$loadSegment$2(LogSegment.java:165)
> at
> org.apache.ratis.server.raftlog.segmented.LogSegment.readSegmentFile(LogSegment.java:138)
> at
> org.apache.ratis.server.raftlog.segmented.LogSegment.loadSegment(LogSegment.java:164)
> at
> org.apache.ratis.server.raftlog.segmented.SegmentedRaftLogCache.loadSegment(SegmentedRaftLogCache.java:381)
> at
> org.apache.ratis.server.raftlog.segmented.SegmentedRaftLog.loadLogSegments(SegmentedRaftLog.java:241)
> at
> org.apache.ratis.server.raftlog.segmented.SegmentedRaftLog.openImpl(SegmentedRaftLog.java:214)
> at
> org.apache.ratis.server.raftlog.RaftLogBase.open(RaftLogBase.java:251)
> at
> org.apache.ratis.server.impl.ServerState.initRaftLog(ServerState.java:239)
> at
> org.apache.ratis.server.impl.ServerState.initRaftLog(ServerState.java:220)
> at
> org.apache.ratis.server.impl.ServerState.lambda$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)
> ... 4 more
> {code}
> # The gap server directory
> {code:java}
> $ ll
> /home/work/ozone/scm.ha.ratis-storage-test4/1d823d9f-3e87-4790-85fc-f1a93f7845e5/current/
> total 4120
> -rw-rw-r-- 1 work work 14567 Sep 8 18:30 log_291-374
> -rw-rw-r-- 1 work work 4194304 Sep 8 18:30 log_inprogress_375
> -rw-rw-r-- 1 work work 50 Sep 8 18:30 raft-meta
> -rw-rw-r-- 1 work work 242 Sep 8 17:29 raft-meta.conf
> {code}
>
> The other two
> {code:java}
> $ ll
> total 4168
> -rw-rw-r-- 1 work work 95 Sep 8 12:13 log_0-0
> -rw-rw-r-- 1 work work 39285 Sep 8 17:30 log_1-290
> -rw-rw-r-- 1 work work 14567 Sep 8 17:35 log_291-374
> -rw-rw-r-- 1 work work 271 Sep 8 17:50 log_375-376
> -rw-rw-r-- 1 work work 4194304 Sep 8 19:01 log_inprogress_377
> -rw-rw-r-- 1 work work 86 Sep 8 18:29 raft-meta
> -rw-rw-r-- 1 work work 242 Sep 8 18:29 raft-meta.conf
> {code}
> {code:java}
> $ ll
> total 4168
> -rw-rw-r-- 1 work work 95 Sep 8 13:15 log_0-0
> -rw-rw-r-- 1 work work 39285 Sep 8 17:29 log_1-290
> -rw-rw-r-- 1 work work 14567 Sep 8 17:35 log_291-374
> -rw-rw-r-- 1 work work 271 Sep 8 18:29 log_375-376
> -rw-rw-r-- 1 work work 4194304 Sep 8 19:01 log_inprogress_377
> -rw-rw-r-- 1 work work 86 Sep 8 18:29 raft-meta
> -rw-rw-r-- 1 work work 242 Sep 8 18:29 raft-meta.conf
> {code}
>
> Related Configurations:
> {code:java}
> <property>
> <name>hdds.ratis.raft.server.log.unsafe-flush.enabled</name>
> <value>false</value>
> </property>
> <property>
> <name>hdds.ratis.raft.server.log.async-flush.enabled</name>
> <value>false</value>
> </property>
> {code}
>
> The scene in which the GAP occurs this time is as follows:
> 1. shutdown scm, shutdown more than 60s timeout kill -9
> 2. restart scm, this error occurs
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