alex kim created FLUME-2228:
-------------------------------
Summary: HDFS namenode failover cause flume error
Key: FLUME-2228
URL: https://issues.apache.org/jira/browse/FLUME-2228
Project: Flume
Issue Type: Bug
Components: Sinks+Sources
Affects Versions: v1.3.0
Environment: redhat6.2,flume 1.3.0
Reporter: alex kim
Priority: Critical
i test flume in HDFS namenode HA env ,
here is my config for flume
agent.sources = seqGenSrc
agent.channels = memoryChannel
agent.sinks = HDFSSink
agent.sources.seqGenSrc.type = exec
agent.sources.seqGenSrc.command = tail -f /tmp/mytest
agent.sources.seqGenSrc.channels = memoryChannel
agent.sinks.HDFSSink.type = hdfs
agent.sinks.HDFSSink.hdfs.path = /myflume
agent.sinks.HDFSSink.channel = memoryChannel
agent.channels.memoryChannel.type = memory
agent.channels.memoryChannel.capacity = 100
i run this in commandline,write one record each 0.5 second
# for i in `seq 1000`;do echo yes$i >> /tmp/mytest;sleep .5;done
and here is my flume log output
30 Oct 2013 13:55:13,192 WARN [SinkRunner-PollingRunner-DefaultSinkProcessor]
(org.apache.flume.sink.hdfs.HDFSEventSink.process:418) - HDFS IO error
org.apache.hadoop.ipc.RemoteException(org.apache.hadoop.hdfs.server.namenode.SafeModeException):
Cannot add block to /myflume/FlumeData.1383111641112.tmp. Name node is in safe
m
ode.
The reported blocks 3722 has reached the threshold 0.9990 of total blocks 3722.
Safe mode will be turned off automatically in 4 seconds.
at
org.apache.hadoop.hdfs.server.namenode.FSNamesystem.analyzeFileState(FSNamesystem.java:2254)
at
org.apache.hadoop.hdfs.server.namenode.FSNamesystem.getAdditionalBlock(FSNamesystem.java:2175)
at
org.apache.hadoop.hdfs.server.namenode.NameNodeRpcServer.addBlock(NameNodeRpcServer.java:480)
at
org.apache.hadoop.hdfs.protocolPB.ClientNamenodeProtocolServerSideTranslatorPB.addBlock(ClientNamenodeProtocolServerSideTranslatorPB.java:299)
at
org.apache.hadoop.hdfs.protocol.proto.ClientNamenodeProtocolProtos$ClientNamenodeProtocol$2.callBlockingMethod(ClientNamenodeProtocolProtos.java:44954)
at
org.apache.hadoop.ipc.ProtobufRpcEngine$Server$ProtoBufRpcInvoker.call(ProtobufRpcEngine.java:453)
at org.apache.hadoop.ipc.RPC$Server.call(RPC.java:1002)
at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:1701)
at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:1697)
at java.security.AccessController.doPrivileged(Native Method)
at javax.security.auth.Subject.doAs(Subject.java:396)
at
org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1408)
at org.apache.hadoop.ipc.Server$Handler.run(Server.java:1695)
at org.apache.hadoop.ipc.Client.call(Client.java:1225)
at
org.apache.hadoop.ipc.ProtobufRpcEngine$Invoker.invoke(ProtobufRpcEngine.java:202)
at com.sun.proxy.$Proxy11.addBlock(Unknown Source)
at
org.apache.hadoop.hdfs.protocolPB.ClientNamenodeProtocolTranslatorPB.addBlock(ClientNamenodeProtocolTranslatorPB.java:291)
at sun.reflect.GeneratedMethodAccessor10.invoke(Unknown Source)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:601)
at
org.apache.hadoop.io.retry.RetryInvocationHandler.invokeMethod(RetryInvocationHandler.java:164)
at
org.apache.hadoop.io.retry.RetryInvocationHandler.invoke(RetryInvocationHandler.java:83)
at com.sun.proxy.$Proxy12.addBlock(Unknown Source)
at
org.apache.hadoop.hdfs.DFSOutputStream$DataStreamer.locateFollowingBlock(DFSOutputStream.java:1176)
at
org.apache.hadoop.hdfs.DFSOutputStream$DataStreamer.nextBlockOutputStream(DFSOutputStream.java:1029)
at
org.apache.hadoop.hdfs.DFSOutputStream$DataStreamer.run(DFSOutputStream.java:487)
30 Oct 2013 13:55:18,194 ERROR [SinkRunner-PollingRunner-DefaultSinkProcessor]
(org.apache.flume.sink.hdfs.AbstractHDFSWriter.isUnderReplicated:82) -
Unexpected error while che
cking replication factor
java.lang.reflect.InvocationTargetException
at sun.reflect.GeneratedMethodAccessor7.invoke(Unknown Source)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:601)
at
org.apache.flume.sink.hdfs.AbstractHDFSWriter.getNumCurrentReplicas(AbstractHDFSWriter.java:147)
at
org.apache.flume.sink.hdfs.AbstractHDFSWriter.isUnderReplicated(AbstractHDFSWriter.java:68)
at
org.apache.flume.sink.hdfs.BucketWriter.shouldRotate(BucketWriter.java:454)
at org.apache.flume.sink.hdfs.BucketWriter.append(BucketWriter.java:389)
at
org.apache.flume.sink.hdfs.HDFSEventSink.process(HDFSEventSink.java:392)
at
org.apache.flume.sink.DefaultSinkProcessor.process(DefaultSinkProcessor.java:68)
at org.apache.flume.SinkRunner$PollingRunner.run(SinkRunner.java:147)
at java.lang.Thread.run(Thread.java:722)
Caused by:
org.apache.hadoop.ipc.RemoteException(org.apache.hadoop.hdfs.server.namenode.SafeModeException):
Cannot add block to /myflume/FlumeData.1383111641112.tmp. Name node is in safe
mode.
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