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Posted to common-dev@hadoop.apache.org by "Doug Cutting (JIRA)" <ji...@apache.org> on 2007/06/06 18:54:26 UTC
[jira] Commented: (HADOOP-1400) JobClient rpc times out getting job
status
[ https://issues.apache.org/jira/browse/HADOOP-1400?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12501983 ]
Doug Cutting commented on HADOOP-1400:
--------------------------------------
I'm concerned about retrying the submitJob() method. All the others seem okay to retry. The only other one with side-effects is killJob(), and it's okay to call that more than once. But we really don't want to submit a job twice.
> JobClient rpc times out getting job status
> ------------------------------------------
>
> Key: HADOOP-1400
> URL: https://issues.apache.org/jira/browse/HADOOP-1400
> Project: Hadoop
> Issue Type: Bug
> Components: mapred
> Affects Versions: 0.12.3
> Reporter: Nigel Daley
> Assignee: Owen O'Malley
> Fix For: 0.14.0
>
> Attachments: job-client-retry.patch
>
>
> JobClient rpc times out getting job status and logs an INFO exception message. JobClient seems to recover, however, so I think the exception should be logged at DEBUG or the message indicate that JobClient will retry. Here's an example log:
> 07/05/20 20:45:38 INFO mapred.JobClient: Running job: job_0029
> 07/05/20 20:45:39 INFO mapred.JobClient: map 0% reduce 0%
> 07/05/20 20:45:43 INFO mapred.JobClient: map 2% reduce 0%
> 07/05/20 20:45:44 INFO mapred.JobClient: map 7% reduce 0%
> 07/05/20 20:45:45 INFO mapred.JobClient: map 17% reduce 0%
> 07/05/20 20:45:46 INFO mapred.JobClient: map 23% reduce 0%
> 07/05/20 20:45:47 INFO mapred.JobClient: map 36% reduce 0%
> 07/05/20 20:45:48 INFO mapred.JobClient: map 60% reduce 0%
> 07/05/20 20:45:49 INFO mapred.JobClient: map 71% reduce 0%
> 07/05/20 20:45:50 INFO mapred.JobClient: map 73% reduce 0%
> 07/05/20 20:45:51 INFO mapred.JobClient: map 75% reduce 0%
> 07/05/20 20:45:52 INFO mapred.JobClient: map 79% reduce 0%
> 07/05/20 20:45:53 INFO mapred.JobClient: map 84% reduce 0%
> 07/05/20 20:45:54 INFO mapred.JobClient: map 97% reduce 0%
> 07/05/20 20:45:57 INFO mapred.JobClient: map 99% reduce 0%
> 07/05/20 20:45:58 INFO mapred.JobClient: map 100% reduce 1%
> 07/05/20 20:46:00 INFO mapred.JobClient: map 100% reduce 2%
> 07/05/20 20:46:08 INFO mapred.JobClient: map 100% reduce 3%
> 07/05/20 20:46:11 INFO mapred.JobClient: map 100% reduce 4%
> 07/05/20 20:46:18 INFO mapred.JobClient: map 100% reduce 5%
> 07/05/20 20:46:21 INFO mapred.JobClient: map 100% reduce 6%
> 07/05/20 20:46:28 INFO mapred.JobClient: map 100% reduce 7%
> 07/05/20 20:46:31 INFO mapred.JobClient: map 100% reduce 8%
> 07/05/20 20:46:37 INFO mapred.JobClient: map 100% reduce 9%
> 07/05/20 20:46:39 INFO mapred.JobClient: map 100% reduce 10%
> 07/05/20 20:46:47 INFO mapred.JobClient: map 100% reduce 11%
> 07/05/20 20:46:50 INFO mapred.JobClient: map 100% reduce 12%
> 07/05/20 20:46:57 INFO mapred.JobClient: map 100% reduce 13%
> 07/05/20 20:46:59 INFO mapred.JobClient: map 100% reduce 14%
> 07/05/20 20:47:07 INFO mapred.JobClient: map 100% reduce 15%
> 07/05/20 20:47:09 INFO mapred.JobClient: map 100% reduce 16%
> 07/05/20 20:47:17 INFO mapred.JobClient: map 100% reduce 17%
> 07/05/20 20:47:19 INFO mapred.JobClient: map 100% reduce 18%
> 07/05/20 20:47:28 INFO mapred.JobClient: map 100% reduce 19%
> 07/05/20 20:47:29 INFO mapred.JobClient: map 100% reduce 20%
> 07/05/20 20:47:35 INFO mapred.JobClient: map 100% reduce 21%
> 07/05/20 20:47:39 INFO mapred.JobClient: map 100% reduce 22%
> 07/05/20 20:47:44 INFO mapred.JobClient: map 100% reduce 23%
> 07/05/20 20:47:49 INFO mapred.JobClient: map 100% reduce 24%
> 07/05/20 20:47:58 INFO mapred.JobClient: map 100% reduce 25%
> 07/05/20 20:47:59 INFO mapred.JobClient: map 100% reduce 26%
> 07/05/20 20:48:05 INFO mapred.JobClient: map 100% reduce 27%
> 07/05/20 20:48:09 INFO mapred.JobClient: map 100% reduce 28%
> 07/05/20 20:48:14 INFO mapred.JobClient: map 100% reduce 29%
> 07/05/20 20:48:19 INFO mapred.JobClient: map 100% reduce 30%
> 07/05/20 20:48:24 INFO mapred.JobClient: map 100% reduce 31%
> 07/05/20 20:48:29 INFO mapred.JobClient: map 100% reduce 32%
> 07/05/20 20:48:31 INFO mapred.JobClient: map 100% reduce 35%
> 07/05/20 20:49:32 INFO mapred.JobClient: Communication problem with server: java.net.SocketTimeoutException: timed out waiting for rpc response
> at org.apache.hadoop.ipc.Client.call(Client.java:473)
> at org.apache.hadoop.ipc.RPC$Invoker.invoke(RPC.java:165)
> at $Proxy1.getJobStatus(Unknown Source)
> at org.apache.hadoop.mapred.JobClient.getJob(JobClient.java:491)
> at org.apache.hadoop.mapred.JobClient.runJob(JobClient.java:556)
> at org.apache.hadoop.mapred.MRBench.runJobInSequence(MRBench.java:188)
> at org.apache.hadoop.mapred.MRBench.main(MRBench.java:280)
> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
> at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
> at java.lang.reflect.Method.invoke(Method.java:597)
> at org.apache.hadoop.util.ProgramDriver$ProgramDescription.invoke(ProgramDriver.java:69)
> at org.apache.hadoop.util.ProgramDriver.driver(ProgramDriver.java:140)
> at org.apache.hadoop.test.AllTestDriver.main(AllTestDriver.java:64)
> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
> at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
> at java.lang.reflect.Method.invoke(Method.java:597)
> at org.apache.hadoop.util.RunJar.main(RunJar.java:155)
> 07/05/20 20:49:35 INFO mapred.JobClient: map 100% reduce 97%
> 07/05/20 20:49:37 INFO mapred.JobClient: map 100% reduce 98%
> 07/05/20 20:49:40 INFO mapred.JobClient: map 100% reduce 99%
> 07/05/20 20:49:42 INFO mapred.JobClient: map 100% reduce 100%
> 07/05/20 20:49:43 INFO mapred.JobClient: Job complete: job_0029
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