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From "Venkat Ranganathan (JIRA)" <j...@apache.org>
Subject [jira] [Created] (FALCON-1129) In a secure cluster, feed replication fails because of Authentication issues
Date Wed, 01 Apr 2015 03:50:53 GMT
Venkat Ranganathan created FALCON-1129:
------------------------------------------

             Summary: In a secure cluster, feed replication fails because of Authentication
issues
                 Key: FALCON-1129
                 URL: https://issues.apache.org/jira/browse/FALCON-1129
             Project: Falcon
          Issue Type: Bug
            Reporter: Venkat Ranganathan
            Assignee: Venkat Ranganathan
            Priority: Critical


In a Feed replication, the Oozie Java action executes on the target and accesses the source
cluster read only endpoint (which is a webhdfs endpoint).    The Java action does not have
the delegation tokens for the source cluster populated in its UGI/conf and this results in
stack traces similar to the following:

{quote}
Failing Oozie Launcher, Main class [org.apache.oozie.action.hadoop.JavaMain], main() threw
exception, org.apache.hadoop.security.AccessControlException: Authentication required
org.apache.oozie.action.hadoop.JavaMainException: org.apache.hadoop.security.AccessControlException:
Authentication required
	at org.apache.oozie.action.hadoop.JavaMain.run(JavaMain.java:58)
	at org.apache.oozie.action.hadoop.LauncherMain.run(LauncherMain.java:39)
	at org.apache.oozie.action.hadoop.JavaMain.main(JavaMain.java:36)
	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:226)
	at org.apache.hadoop.mapred.MapRunner.run(MapRunner.java:54)
	at org.apache.hadoop.mapred.MapTask.runOldMapper(MapTask.java:450)
	at org.apache.hadoop.mapred.MapTask.run(MapTask.java:343)
	at org.apache.hadoop.mapred.YarnChild$2.run(YarnChild.java:163)
	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:1628)
	at org.apache.hadoop.mapred.YarnChild.main(YarnChild.java:158)
Caused by: org.apache.hadoop.security.AccessControlException: Authentication required
	at org.apache.hadoop.hdfs.web.WebHdfsFileSystem.validateResponse(WebHdfsFileSystem.java:334)
	at org.apache.hadoop.hdfs.web.WebHdfsFileSystem.access$200(WebHdfsFileSystem.java:91)
	at org.apache.hadoop.hdfs.web.WebHdfsFileSystem$AbstractRunner.runWithRetry(WebHdfsFileSystem.java:608)
	at org.apache.hadoop.hdfs.web.WebHdfsFileSystem$AbstractRunner.access$100(WebHdfsFileSystem.java:458)
	at org.apache.hadoop.hdfs.web.WebHdfsFileSystem$AbstractRunner$1.run(WebHdfsFileSystem.java:487)
	at java.security.AccessController.doPrivileged(Native Method)
	at javax.security.auth.Subject.doAs(Subject.java:415)
	at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1628)
	at org.apache.hadoop.hdfs.web.WebHdfsFileSystem$AbstractRunner.run(WebHdfsFileSystem.java:483)
	at org.apache.hadoop.hdfs.web.WebHdfsFileSystem.getDelegationToken(WebHdfsFileSystem.java:1306)
	at org.apache.hadoop.hdfs.web.WebHdfsFileSystem.getDelegationToken(WebHdfsFileSystem.java:237)
	at org.apache.hadoop.hdfs.web.WebHdfsFileSystem.getAuthParameters(WebHdfsFileSystem.java:423)
	at org.apache.hadoop.hdfs.web.WebHdfsFileSystem.toUrl(WebHdfsFileSystem.java:444)
	at org.apache.hadoop.hdfs.web.WebHdfsFileSystem$AbstractFsPathRunner.getUrl(WebHdfsFileSystem.java:691)
	at org.apache.hadoop.hdfs.web.WebHdfsFileSystem$AbstractRunner.runWithRetry(WebHdfsFileSystem.java:603)
	at org.apache.hadoop.hdfs.web.WebHdfsFileSystem$AbstractRunner.access$100(WebHdfsFileSystem.java:458)
	at org.apache.hadoop.hdfs.web.WebHdfsFileSystem$AbstractRunner$1.run(WebHdfsFileSystem.java:487)
	at java.security.AccessController.doPrivileged(Native Method)
	at javax.security.auth.Subject.doAs(Subject.java:415)
	at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1628)
	at org.apache.hadoop.hdfs.web.WebHdfsFileSystem$AbstractRunner.run(WebHdfsFileSystem.java:483)
	at org.apache.hadoop.hdfs.web.WebHdfsFileSystem.getHdfsFileStatus(WebHdfsFileSystem.java:838)
	at org.apache.hadoop.hdfs.web.WebHdfsFileSystem.getFileStatus(WebHdfsFileSystem.java:853)
	at org.apache.hadoop.fs.Globber.getFileStatus(Globber.java:57)
	at org.apache.hadoop.fs.Globber.glob(Globber.java:252)
	at org.apache.hadoop.fs.FileSystem.globStatus(FileSystem.java:1648)
	at org.apache.falcon.latedata.LateDataHandler.usage(LateDataHandler.java:207)
	at org.apache.falcon.latedata.LateDataHandler.getFileSystemUsageMetric(LateDataHandler.java:199)
	at org.apache.falcon.latedata.LateDataHandler.computeStorageMetric(LateDataHandler.java:171)
	at org.apache.falcon.latedata.LateDataHandler.computeMetrics(LateDataHandler.java:120)
	at org.apache.falcon.latedata.LateDataHandler.run(LateDataHandler.java:97)
	at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:70)
	at org.apache.falcon.latedata.LateDataHandler.main(LateDataHandler.java:55)
	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:55)
	... 15 more
{quote}

The Workflow builder should be updated to specify the configuration property _mapreduce.job.hdfs-servers_
to list all the endpoints accessed by the action.



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