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https://issues.apache.org/jira/browse/RATIS-2194?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Chung En Lee updated RATIS-2194:
--------------------------------
Summary: FileLock didn't unlock correctly (was: The FileLock wasn't
properly released)
> FileLock didn't unlock correctly
> --------------------------------
>
> Key: RATIS-2194
> URL: https://issues.apache.org/jira/browse/RATIS-2194
> Project: Ratis
> Issue Type: Bug
> Reporter: Chung En Lee
> Assignee: Chung En Lee
> Priority: Blocker
>
> Found OverlappingFileLockExceptio when restarting RaftServer.
> {code:java}
> 2024-11-15 10:20:34,913 [ec434f7b-7b08-41b6-ab49-e0081c7628e0-impl-thread2]
> ERROR storage.RaftStorageDirectory
> (RaftStorageDirectoryImpl.java:tryLock(232)) - It appears that another
> process has already locked the storage directory:
> /home/runner/work/ozone/ozone/hadoop-ozone/integration-test/target/test-dir/MiniOzoneClusterImpl-39b72d62-70b5-4dca-b921-16ab22773f65/ozone-meta/datanode-5/ratis/6307bde8-27c4-4e8e-a05b-c0f893560afd
> java.nio.channels.OverlappingFileLockException
> at sun.nio.ch.SharedFileLockTable.checkList(FileLockTable.java:255)
> at sun.nio.ch.SharedFileLockTable.add(FileLockTable.java:152)
> at sun.nio.ch.FileChannelImpl.tryLock(FileChannelImpl.java:1107)
> at java.nio.channels.FileChannel.tryLock(FileChannel.java:1155)
> at
> org.apache.ratis.server.storage.RaftStorageDirectoryImpl.tryLock(RaftStorageDirectoryImpl.java:223)
> at
> org.apache.ratis.server.storage.RaftStorageDirectoryImpl.lambda$lock$0(RaftStorageDirectoryImpl.java:193)
> at org.apache.ratis.util.JavaUtils.lambda$attempt$7(JavaUtils.java:212)
> at org.apache.ratis.util.JavaUtils.attempt(JavaUtils.java:225)
> at org.apache.ratis.util.JavaUtils.attempt(JavaUtils.java:212)
> at org.apache.ratis.util.FileUtils.attempt(FileUtils.java:45)
> at
> org.apache.ratis.server.storage.RaftStorageDirectoryImpl.lock(RaftStorageDirectoryImpl.java:193)
> at
> org.apache.ratis.server.storage.RaftStorageDirectoryImpl.analyzeStorage(RaftStorageDirectoryImpl.java:156)
> at
> org.apache.ratis.server.storage.RaftStorageImpl.analyzeAndRecoverStorage(RaftStorageImpl.java:106)
> at
> org.apache.ratis.server.storage.RaftStorageImpl.initialize(RaftStorageImpl.java:66)
> at
> org.apache.ratis.server.storage.StorageImplUtils$Op.recover(StorageImplUtils.java:176)
> at
> org.apache.ratis.server.storage.StorageImplUtils$Op.run(StorageImplUtils.java:129)
> at
> org.apache.ratis.server.storage.StorageImplUtils.initRaftStorage(StorageImplUtils.java:100)
> at
> org.apache.ratis.server.impl.ServerState.lambda$new$2(ServerState.java:118)
> at
> org.apache.ratis.util.MemoizedCheckedSupplier.get(MemoizedCheckedSupplier.java:68)
> at
> org.apache.ratis.server.impl.ServerState.initialize(ServerState.java:140)
> at
> org.apache.ratis.server.impl.RaftServerImpl.start(RaftServerImpl.java:384)
> at org.apache.ratis.util.ConcurrentUtils.accept(ConcurrentUtils.java:203)
> at
> org.apache.ratis.util.ConcurrentUtils.lambda$null$4(ConcurrentUtils.java:182)
> at
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
> at
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
> at java.lang.Thread.run(Thread.java:750){code}
> When closing `RaftServerProxy`, all `RaftServerImpl` in `implMap` should be
> closed. However, if there was a new `RaftServerImpl` started by
> `RaftServerProxy#groupManagementAsync`, it would not be closed properly. The
> log will say that the new `RaftServerImpl` has been closed, but its raft
> store is still being initialised by `implExecutor`.
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