Hi,
Could you first try running the example: $ /usr/bin/hadoop jar /usr/lib/hadoop-0.20-mapreduce/hadoop-examples.jar grep input output 'dfs[a-z.]+' Do you receive the same error? Not sure if it's related to a lack of RAM, but as the stack trace shows errors with "network" timeout (I realise that you're running in pseudo-distributed mode): Caused by: com.google.protobuf.ServiceException: java.net.SocketTimeoutException: Call From localhost.localdomain/127.0.0.1 to localhost.localdomain:54113 failed on socket timeout exception: java.net.SocketTimeoutException: 60000 millis timeout while waiting for channel to be ready for read. ch : java.nio.channels.SocketChannel[connected local=/127.0.0.1:60976 remote=localhost.localdomain/127.0.0.1:54113]; For more details see: http://wiki.apache.org/hadoop/SocketTimeout Your best bet is probably to start with checking the items mentioned in the wiki page linked to above. While the default firewall rules (on CentOS) usually allows pretty much all traffic on the lo interface it might be worth temporarily turning off iptables (assuming it is on). Vijay From: yeyu1899 [mailto:yeyu1...@163.com] Sent: 12 February 2013 12:58 To: user@hadoop.apache.org Subject: Error for Pseudo-distributed Mode Hi all, I installed a redhat_enterprise-linux-x86 in VMware Workstation, and set the virtual machine 1G memory. Then I followed steps guided by "Installing CDH4 on a Single Linux Node in Pseudo-distributed Mode" -- https://ccp.cloudera.com/display/CDH4DOC/Installing+CDH4+on+a+Single+Linux+N ode+in+Pseudo-distributed+Mode. When at last, I ran an example Hadoop job with the command "$ hadoop jar /usr/lib/hadoop-mapreduce/hadoop-mapreduce-examples.jar grep input output23 'dfs[a-z.]+'" then the screen showed as follows, depending "AttemptID:attempt_1360528029309_0001_r_000000_0 Timed out after 600 secs" and I wonder is that because my virtual machine's memory too little~~?? [hadoop@localhost hadoop-mapreduce]$ hadoop jar /usr/lib/hadoop-mapreduce/hadoop-mapreduce-examples.jar grep input output23 'dfs[a-z]+' 13/02/11 04:30:44 WARN mapreduce.JobSubmitter: No job jar file set. User classes may not be found. See Job or Job#setJar(String). 13/02/11 04:30:44 INFO input.FileInputFormat: Total input paths to process : 4 13/02/11 04:30:45 INFO mapreduce.JobSubmitter: number of splits:4 13/02/11 04:30:45 WARN conf.Configuration: mapred.output.value.class is deprecated. Instead, use mapreduce.job.output.value.class 13/02/11 04:30:45 WARN conf.Configuration: mapreduce.combine.class is deprecated. Instead, use mapreduce.job.combine.class 13/02/11 04:30:45 WARN conf.Configuration: mapreduce.map.class is deprecated. Instead, use mapreduce.job.map.class 13/02/11 04:30:45 WARN conf.Configuration: mapred.job.name is deprecated. Instead, use mapreduce.job.name 13/02/11 04:30:45 WARN conf.Configuration: mapreduce.reduce.class is deprecated. Instead, use mapreduce.job.reduce.class 13/02/11 04:30:45 WARN conf.Configuration: mapred.input.dir is deprecated. Instead, use mapreduce.input.fileinputformat.inputdir 13/02/11 04:30:45 WARN conf.Configuration: mapred.output.dir is deprecated. Instead, use mapreduce.output.fileoutputformat.outputdir 13/02/11 04:30:45 WARN conf.Configuration: mapreduce.outputformat.class is deprecated. Instead, use mapreduce.job.outputformat.class 13/02/11 04:30:45 WARN conf.Configuration: mapred.map.tasks is deprecated. Instead, use mapreduce.job.maps 13/02/11 04:30:45 WARN conf.Configuration: mapred.output.key.class is deprecated. Instead, use mapreduce.job.output.key.class 13/02/11 04:30:45 WARN conf.Configuration: mapred.working.dir is deprecated. Instead, use mapreduce.job.working.dir 13/02/11 04:30:46 INFO mapred.YARNRunner: Job jar is not present. Not adding any jar to the list of resources. 13/02/11 04:30:46 INFO mapred.ResourceMgrDelegate: Submitted application application_1360528029309_0001 to ResourceManager at /0.0.0.0:8032 13/02/11 04:30:46 INFO mapreduce.Job: The url to track the job: http://localhost.localdomain:8088/proxy/application_1360528029309_0001/ 13/02/11 04:30:46 INFO mapreduce.Job: Running job: job_1360528029309_0001 13/02/11 04:31:01 INFO mapreduce.Job: Job job_1360528029309_0001 running in uber mode : false 13/02/11 04:31:01 INFO mapreduce.Job: map 0% reduce 0% 13/02/11 04:47:22 INFO mapreduce.Job: Task Id : attempt_1360528029309_0001_r_000000_0, Status : FAILED AttemptID:attempt_1360528029309_0001_r_000000_0 Timed out after 600 secs cleanup failed for container container_1360528029309_0001_01_000006 : java.lang.reflect.UndeclaredThrowableException at org.apache.hadoop.yarn.exceptions.impl.pb.YarnRemoteExceptionPBImpl.unwrapAn dThrowException(YarnRemoteExceptionPBImpl.java:135) at org.apache.hadoop.yarn.api.impl.pb.client.ContainerManagerPBClientImpl.stopC ontainer(ContainerManagerPBClientImpl.java:114) at org.apache.hadoop.mapreduce.v2.app.launcher.ContainerLauncherImpl$Container. kill(ContainerLauncherImpl.java:209) at org.apache.hadoop.mapreduce.v2.app.launcher.ContainerLauncherImpl$EventProce ssor.run(ContainerLauncherImpl.java:394) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:11 10) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:6 03) at java.lang.Thread.run(Thread.java:722) Caused by: com.google.protobuf.ServiceException: java.net.SocketTimeoutException: Call From localhost.localdomain/127.0.0.1 to localhost.localdomain:54113 failed on socket timeout exception: java.net.SocketTimeoutException: 60000 millis timeout while waiting for channel to be ready for read. ch : java.nio.channels.SocketChannel[connected local=/127.0.0.1:60976 remote=localhost.localdomain/127.0.0.1:54113]; For more details see: http://wiki.apache.org/hadoop/SocketTimeout at org.apache.hadoop.ipc.ProtobufRpcEngine$Invoker.invoke(ProtobufRpcEngine.jav a:212) at $Proxy29.stopContainer(Unknown Source) at org.apache.hadoop.yarn.api.impl.pb.client.ContainerManagerPBClientImpl.stopC ontainer(ContainerManagerPBClientImpl.java:111) ... 5 more Caused by: java.net.SocketTimeoutException: Call From localhost.localdomain/127.0.0.1 to localhost.localdomain:54113 failed on socket timeout exception: java.net.SocketTimeoutException: 60000 millis timeout while waiting for channel to be ready for read. ch : java.nio.channels.SocketChannel[connected local=/127.0.0.1:60976 remote=localhost.localdomain/127.0.0.1:54113]; For more details see: http://wiki.apache.org/hadoop/SocketTimeout at org.apache.hadoop.net.NetUtils.wrapException(NetUtils.java:742) at org.apache.hadoop.ipc.Client.call(Client.java:1228) at org.apache.hadoop.ipc.ProtobufRpcEngine$Invoker.invoke(ProtobufRpcEngine.jav a:202) ... 7 more Caused by: java.net.SocketTimeoutException: 60000 millis timeout while waiting for channel to be ready for read. ch : java.nio.channels.SocketChannel[connected local=/127.0.0.1:60976 remote=localhost.localdomain/127.0.0.1:54113] at org.apache.hadoop.net.SocketIOWithTimeout.doIO(SocketIOWithTimeout.java:165) at org.apache.hadoop.net.SocketInputStream.read(SocketInputStream.java:154) at org.apache.hadoop.net.SocketInputStream.read(SocketInputStream.java:127) at java.io.FilterInputStream.read(FilterInputStream.java:133) at java.io.FilterInputStream.read(FilterInputStream.java:133) at org.apache.hadoop.ipc.Client$Connection$PingInputStream.read(Client.java:408 ) at java.io.BufferedInputStream.fill(BufferedInputStream.java:235) at java.io.BufferedInputStream.read(BufferedInputStream.java:254) at java.io.FilterInputStream.read(FilterInputStream.java:83) at com.google.protobuf.AbstractMessageLite$Builder.mergeDelimitedFrom(AbstractM essageLite.java:276) at com.google.protobuf.AbstractMessage$Builder.mergeDelimitedFrom(AbstractMessa ge.java:760) at com.google.protobuf.AbstractMessageLite$Builder.mergeDelimitedFrom(AbstractM essageLite.java:288) at com.google.protobuf.AbstractMessage$Builder.mergeDelimitedFrom(AbstractMessa ge.java:752) at org.apache.hadoop.ipc.protobuf.RpcPayloadHeaderProtos$RpcResponseHeaderProto .parseDelimitedFrom(RpcPayloadHeaderProtos.java:985) at org.apache.hadoop.ipc.Client$Connection.receiveResponse(Client.java:937) at org.apache.hadoop.ipc.Client$Connection.run(Client.java:835) ..........
