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Posted to reviews@iotdb.apache.org by GitBox <gi...@apache.org> on 2021/10/28 06:08:03 UTC
[GitHub] [iotdb] yschengzi opened a new pull request #4253: [To rel/0.12][IOTDB-1893] Can not release file lock in sync verify singleton
yschengzi opened a new pull request #4253:
URL: https://github.com/apache/iotdb/pull/4253
The steps to reproduce are as follows：
1. Start the receiver service on a server A
2. Start the sender service on a server B
3. Start sync function sender on a server B
4. start benchmark to write datas on a server B
5. At last ,Check whether the data is successfully synchronized
Actual results in logs:
2021-10-26 11:18:11,111 [Thread-1] ERROR o.a.i.d.s.s.t.SyncClient:181 - Unable to remove lock file: /home/xzh/iotdb/0.12.0/apache-iotdb-0.12.0-all-bin/data/system/sync/172.20.31.3_5555/sync_lock
java.nio.channels.ClosedChannelException: null
at sun.nio.ch.FileLockImpl.release(FileLockImpl.java:58)
at org.apache.iotdb.db.sync.sender.transfer.SyncClient.lambda$lockInstance$0(SyncClient.java:178)
at java.lang.Thread.run(Thread.java:748)
2021-10-26 11:26:33,619 [pool-8-IoTDB-RPC-Client-2] ERROR o.a.t.s.TThreadPoolServer$WorkerProcess:315 - Thrift error occurred during processing of message.
org.apache.thrift.transport.TTransportException: null
at org.apache.thrift.transport.TIOStreamTransport.read(TIOStreamTransport.java:132)
at org.apache.thrift.transport.TTransport.readAll(TTransport.java:86)
at org.apache.iotdb.rpc.TElasticFramedTransport.readFrame(TElasticFramedTransport.java:110)
at org.apache.iotdb.rpc.TElasticFramedTransport.read(TElasticFramedTransport.java:105)
at org.apache.thrift.transport.TTransport.readAll(TTransport.java:86)
at org.apache.thrift.protocol.TBinaryProtocol.readAll(TBinaryProtocol.java:425)
at org.apache.thrift.protocol.TBinaryProtocol.readI32(TBinaryProtocol.java:321)
at org.apache.thrift.protocol.TBinaryProtocol.readMessageBegin(TBinaryProtocol.java:225)
at org.apache.thrift.TBaseProcessor.process(TBaseProcessor.java:27)
at org.apache.thrift.server.TThreadPoolServer$WorkerProcess.run(TThreadPoolServer.java:310)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
at java.lang.Thread.run(Thread.java:748)
this is because Runtime.getRuntime().addShutdownHook() add a hook before jvm shut down, but the file stream of file lock may be close before releasing, so the file lock can not release.
solution:
open a new file to lock the file stream
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[GitHub] [iotdb] HTHou merged pull request #4253: [To rel/0.12][IOTDB-1893] Can not release file lock in sync verify singleton
Posted by GitBox <gi...@apache.org>.
HTHou merged pull request #4253:
URL: https://github.com/apache/iotdb/pull/4253
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