I do some performance test for hbase version 0.90.1
when the name node crashed, I find some data lost.
I'm not sure exactly what arose it. It seems like split logs failed.
I think the master should shutdown itself when HDFS crashed.
The logs is :
2011-03-22 13:21:55,056 WARN org.apache.hadoop.hbase.master.LogCleaner: Error
while cleaning the logs
java.net.ConnectException: Call to C4C1/157.5.100.1:9000 failed on connection
exception: java.net.ConnectException: Connection refused
at org.apache.hadoop.ipc.Client.wrapException(Client.java:844)
at org.apache.hadoop.ipc.Client.call(Client.java:820)
at org.apache.hadoop.ipc.RPC$Invoker.invoke(RPC.java:221)
at $Proxy5.getListing(Unknown Source)
at sun.reflect.GeneratedMethodAccessor9.invoke(Unknown Source)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at
org.apache.hadoop.io.retry.RetryInvocationHandler.invokeMethod(RetryInvocationHandler.java:82)
at
org.apache.hadoop.io.retry.RetryInvocationHandler.invoke(RetryInvocationHandler.java:59)
at $Proxy5.getListing(Unknown Source)
at org.apache.hadoop.hdfs.DFSClient.listPaths(DFSClient.java:614)
at
org.apache.hadoop.hdfs.DistributedFileSystem.listStatus(DistributedFileSystem.java:252)
at org.apache.hadoop.hbase.master.LogCleaner.chore(LogCleaner.java:121)
at org.apache.hadoop.hbase.Chore.run(Chore.java:66)
at org.apache.hadoop.hbase.master.LogCleaner.run(LogCleaner.java:154)
Caused by: java.net.ConnectException: Connection refused
at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method)
at
sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:574)
at
org.apache.hadoop.net.SocketIOWithTimeout.connect(SocketIOWithTimeout.java:206)
at org.apache.hadoop.net.NetUtils.connect(NetUtils.java:408)
at
org.apache.hadoop.ipc.Client$Connection.setupIOstreams(Client.java:332)
at org.apache.hadoop.ipc.Client$Connection.access$2000(Client.java:202)
at org.apache.hadoop.ipc.Client.getConnection(Client.java:943)
at org.apache.hadoop.ipc.Client.call(Client.java:788)
... 13 more
2011-03-22 13:21:56,056 INFO org.apache.hadoop.ipc.Client: Retrying connect to
server: C4C1/157.5.100.1:9000. Already tried 0 time(s).
2011-03-22 13:21:57,057 INFO org.apache.hadoop.ipc.Client: Retrying connect to
server: C4C1/157.5.100.1:9000. Already tried 1 time(s).
2011-03-22 13:21:58,057 INFO org.apache.hadoop.ipc.Client: Retrying connect to
server: C4C1/157.5.100.1:9000. Already tried 2 time(s).
2011-03-22 13:21:59,057 INFO org.apache.hadoop.ipc.Client: Retrying connect to
server: C4C1/157.5.100.1:9000. Already tried 3 time(s).
2011-03-22 13:22:00,058 INFO org.apache.hadoop.ipc.Client: Retrying connect to
server: C4C1/157.5.100.1:9000. Already tried 4 time(s).
2011-03-22 13:22:01,058 INFO org.apache.hadoop.ipc.Client: Retrying connect to
server: C4C1/157.5.100.1:9000. Already tried 5 time(s).
2011-03-22 13:22:02,059 INFO org.apache.hadoop.ipc.Client: Retrying connect to
server: C4C1/157.5.100.1:9000. Already tried 6 time(s).
2011-03-22 13:22:03,059 INFO org.apache.hadoop.ipc.Client: Retrying connect to
server: C4C1/157.5.100.1:9000. Already tried 7 time(s).
2011-03-22 13:22:04,059 INFO org.apache.hadoop.ipc.Client: Retrying connect to
server: C4C1/157.5.100.1:9000. Already tried 8 time(s).
2011-03-22 13:22:05,060 INFO org.apache.hadoop.ipc.Client: Retrying connect to
server: C4C1/157.5.100.1:9000. Already tried 9 time(s).
2011-03-22 13:22:05,060 ERROR org.apache.hadoop.hbase.master.MasterFileSystem:
Failed splitting hdfs://C4C1:9000/hbase/.logs/C4C9.site,60020,1300767633398
java.net.ConnectException: Call to C4C1/157.5.100.1:9000 failed on connection
exception: java.net.ConnectException: Connection refused
at org.apache.hadoop.ipc.Client.wrapException(Client.java:844)
at org.apache.hadoop.ipc.Client.call(Client.java:820)
at org.apache.hadoop.ipc.RPC$Invoker.invoke(RPC.java:221)
at $Proxy5.getFileInfo(Unknown Source)
at sun.reflect.GeneratedMethodAccessor4.invoke(Unknown Source)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at
org.apache.hadoop.io.retry.RetryInvocationHandler.invokeMethod(RetryInvocationHandler.java:82)
at
org.apache.hadoop.io.retry.RetryInvocationHandler.invoke(RetryInvocationHandler.java:59)
at $Proxy5.getFileInfo(Unknown Source)
at org.apache.hadoop.hdfs.DFSClient.getFileInfo(DFSClient.java:623)
at
org.apache.hadoop.hdfs.DistributedFileSystem.getFileStatus(DistributedFileSystem.java:461)
at org.apache.hadoop.fs.FileSystem.exists(FileSystem.java:690)
at
org.apache.hadoop.hbase.regionserver.wal.HLogSplitter.splitLog(HLogSplitter.java:177)
at
org.apache.hadoop.hbase.master.MasterFileSystem.splitLog(MasterFileSystem.java:196)
at
org.apache.hadoop.hbase.master.handler.ServerShutdownHandler.process(ServerShutdownHandler.java:95)
at
org.apache.hadoop.hbase.executor.EventHandler.run(EventHandler.java:151)
at
java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
at java.lang.Thread.run(Thread.java:662)
Caused by: java.net.ConnectException: Connection refused
at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method)
at
sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:574)
at
org.apache.hadoop.net.SocketIOWithTimeout.connect(SocketIOWithTimeout.java:206)
at org.apache.hadoop.net.NetUtils.connect(NetUtils.java:408)
at
org.apache.hadoop.ipc.Client$Connection.setupIOstreams(Client.java:332)
at org.apache.hadoop.ipc.Client$Connection.access$2000(Client.java:202)
at org.apache.hadoop.ipc.Client.getConnection(Client.java:943)
at org.apache.hadoop.ipc.Client.call(Client.java:788)
... 18 more
2011-03-22 13:22:45,600 INFO org.apache.hadoop.ipc.Client: Retrying connect to
server: C4C1/157.5.100.1:9000. Already tried 0 time(s).
2011-03-22 13:22:46,600 INFO org.apache.hadoop.ipc.Client: Retrying connect to
server: C4C1/157.5.100.1:9000. Already tried 1 time(s).
2011-03-22 13:22:47,601 INFO org.apache.hadoop.ipc.Client: Retrying connect to
server: C4C1/157.5.100.1:9000. Already tried 2 time(s).
2011-03-22 13:22:48,601 INFO org.apache.hadoop.ipc.Client: Retrying connect to
server: C4C1/157.5.100.1:9000. Already tried 3 time(s).
2011-03-22 13:22:49,601 INFO org.apache.hadoop.ipc.Client: Retrying connect to
server: C4C1/157.5.100.1:9000. Already tried 4 time(s).
2011-03-22 13:22:50,602 INFO org.apache.hadoop.ipc.Client: Retrying connect to
server: C4C1/157.5.100.1:9000. Already tried 5 time(s).
2011-03-22 13:22:51,602 INFO org.apache.hadoop.ipc.Client: Retrying connect to
server: C4C1/157.5.100.1:9000. Already tried 6 time(s).
2011-03-22 13:22:52,602 INFO org.apache.hadoop.ipc.Client: Retrying connect to
server: C4C1/157.5.100.1:9000. Already tried 7 time(s).
2011-03-22 13:22:53,603 INFO org.apache.hadoop.ipc.Client: Retrying connect to
server: C4C1/157.5.100.1:9000. Already tried 8 time(s).
2011-03-22 13:22:54,603 INFO org.apache.hadoop.ipc.Client: Retrying connect to
server: C4C1/157.5.100.1:9000. Already tried 9 time(s).
2011-03-22 13:22:54,603 WARN org.apache.hadoop.hbase.master.LogCleaner: Error
while cleaning the logs
java.net.ConnectException: Call to C4C1/157.5.100.1:9000 failed on connection
exception: java.net.ConnectException: Connection refused
at org.apache.hadoop.ipc.Client.wrapException(Client.java:844)
at org.apache.hadoop.ipc.Client.call(Client.java:820)
at org.apache.hadoop.ipc.RPC$Invok
