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From "Venkat Ranganathan (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (FALCON-1312) Falcon post processing action should use Oozie prepared configuration
Date Fri, 28 Aug 2015 16:19:46 GMT

    [ https://issues.apache.org/jira/browse/FALCON-1312?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14720114#comment-14720114
] 

Venkat Ranganathan commented on FALCON-1312:
--------------------------------------------

[~jaehong choi]  Your cluster entity issue is different and should not happen if the hadoop/oozie
is properly configured.

[~ajayyadava]   It would be good to get this in 0.7, but if you have concerns getting into
0.7 then we can get it into 0.8

> Falcon post processing action should use Oozie prepared configuration
> ---------------------------------------------------------------------
>
>                 Key: FALCON-1312
>                 URL: https://issues.apache.org/jira/browse/FALCON-1312
>             Project: Falcon
>          Issue Type: Bug
>          Components: common
>    Affects Versions: 0.6, 0.6.1
>            Reporter: Venkat Ranganathan
>            Assignee: Venkat Ranganathan
>         Attachments: FALCON-1312.patch, FALCON-1312.patch.2
>
>
> Without this, in an environment with NN-HA or security setup, the postprocessing action
will fail accdssing the filesystem 
> {quote}
> Failing Oozie Launcher, Main class [org.apache.oozie.action.hadoop.JavaMain], main()
threw exception, java.lang.IllegalArgumentException: java.net.UnknownHostException: nameservice
> org.apache.oozie.action.hadoop.JavaMainException: java.lang.IllegalArgumentException:
java.net.UnknownHostException: nameservice
> 	at org.apache.oozie.action.hadoop.JavaMain.run(JavaMain.java:59)
> 	at org.apache.oozie.action.hadoop.LauncherMain.run(LauncherMain.java:47)
> 	at org.apache.oozie.action.hadoop.JavaMain.main(JavaMain.java:35)
> 	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> 	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
> 	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
> 	at java.lang.reflect.Method.invoke(Method.java:606)
> 	at org.apache.oozie.action.hadoop.LauncherMapper.map(LauncherMapper.java:236)
> 	at org.apache.hadoop.mapred.MapRunner.run(MapRunner.java:54)
> 	at org.apache.hadoop.mapred.MapTask.runOldMapper(MapTask.java:453)
> 	at org.apache.hadoop.mapred.MapTask.run(MapTask.java:343)
> 	at org.apache.hadoop.mapred.YarnChild$2.run(YarnChild.java:164)
> 	at java.security.AccessController.doPrivileged(Native Method)
> 	at javax.security.auth.Subject.doAs(Subject.java:415)
> 	at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1657)
> 	at org.apache.hadoop.mapred.YarnChild.main(YarnChild.java:158)
> Caused by: java.lang.IllegalArgumentException: java.net.UnknownHostException: nameservice
> 	at org.apache.hadoop.security.SecurityUtil.buildTokenService(SecurityUtil.java:377)
> 	at org.apache.hadoop.hdfs.NameNodeProxies.createNonHAProxy(NameNodeProxies.java:310)
> 	at org.apache.hadoop.hdfs.NameNodeProxies.createProxy(NameNodeProxies.java:176)
> 	at org.apache.hadoop.hdfs.DFSClient.<init>(DFSClient.java:678)
> 	at org.apache.hadoop.hdfs.DFSClient.<init>(DFSClient.java:619)
> 	at org.apache.hadoop.hdfs.DistributedFileSystem.initialize(DistributedFileSystem.java:149)
> 	at org.apache.hadoop.fs.FileSystem.createFileSystem(FileSystem.java:2653)
> 	at org.apache.hadoop.fs.FileSystem.access$200(FileSystem.java:92)
> 	at org.apache.hadoop.fs.FileSystem$Cache.getInternal(FileSystem.java:2687)
> 	at org.apache.hadoop.fs.FileSystem$Cache.get(FileSystem.java:2669)
> 	at org.apache.hadoop.fs.FileSystem.get(FileSystem.java:371)
> 	at org.apache.falcon.hadoop.HadoopClientFactory$1.run(HadoopClientFactory.java:200)
> 	at org.apache.falcon.hadoop.HadoopClientFactory$1.run(HadoopClientFactory.java:198)
> 	at java.security.AccessController.doPrivileged(Native Method)
> 	at javax.security.auth.Subject.doAs(Subject.java:415)
> 	at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1657)
> 	at org.apache.falcon.hadoop.HadoopClientFactory.createFileSystem(HadoopClientFactory.java:198)
> 	at org.apache.falcon.hadoop.HadoopClientFactory.createProxiedFileSystem(HadoopClientFactory.java:153)
> 	at org.apache.falcon.hadoop.HadoopClientFactory.createProxiedFileSystem(HadoopClientFactory.java:145)
> 	at org.apache.falcon.workflow.WorkflowExecutionContext.serialize(WorkflowExecutionContext.java:313)
> 	at org.apache.falcon.workflow.WorkflowExecutionContext.serialize(WorkflowExecutionContext.java:299)
> 	at org.apache.falcon.workflow.FalconPostProcessing.run(FalconPostProcessing.java:49)
> 	at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:70)
> 	at org.apache.falcon.workflow.FalconPostProcessing.main(FalconPostProcessing.java:39)
> 	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> 	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
> 	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
> 	at java.lang.reflect.Method.invoke(Method.java:606)
> 	at org.apache.oozie.action.hadoop.JavaMain.run(JavaMain.java:56)
> 	... 15 more
> Caused by: java.net.UnknownHostException: nameservice
> 	... 44 more
> {quote}
> In the above stack trace it is clear that we are using non-HA proxy because the configuration
used does not have the HA information 



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