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From "Venkat Ranganathan (JIRA)" <j...@apache.org>
Subject [jira] [Created] (FALCON-1312) Falcon post processing action should use Oozie prepared configuration
Date Thu, 16 Jul 2015 03:32:04 GMT
Venkat Ranganathan created FALCON-1312:
------------------------------------------

             Summary: 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: 0.6.1, 0.6
            Reporter: Venkat Ranganathan
            Assignee: Venkat Ranganathan
             Fix For: 0.7
         Attachments: FALCON-1312.patch

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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