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https://issues.apache.org/jira/browse/AMBARI-10535?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14498298#comment-14498298
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Aleksandr Kovalenko commented on AMBARI-10535:
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+1 for the patch
> "Regenerate Keytabs" should restart services when complete
> ----------------------------------------------------------
>
> Key: AMBARI-10535
> URL: https://issues.apache.org/jira/browse/AMBARI-10535
> Project: Ambari
> Issue Type: Bug
> Components: ambari-web
> Affects Versions: 2.0.0
> Reporter: Antonenko Alexander
> Assignee: Antonenko Alexander
> Fix For: 2.1.0
>
>
> When pressing "Regenerate Keytabs" button, it says it will restart all
> services. But really, that doesn't happen, and it should be done by hand,
> because in other case there are service check disruption like this:
> {code}
> 2015-03-18 09:34:27,825 [JobControl] INFO
> org.apache.hadoop.mapreduce.lib.jobcontrol.ControlledJob -
> PigLatin:pigSmoke.sh got an error while submitting
> java.io.IOException: Failed to run job : Failed to renew token: Kind:
> HDFS_DELEGATION_TOKEN, Service: 192.168.65.101:8020, Ident:
> (HDFS_DELEGATION_TOKEN token 358 for ambari-qa)
> at org.apache.hadoop.mapred.YARNRunner.submitJob(YARNRunner.java:301)
> at
> org.apache.hadoop.mapreduce.JobSubmitter.submitJobInternal(JobSubmitter.java:536)
> at org.apache.hadoop.mapreduce.Job$10.run(Job.java:1296)
> at org.apache.hadoop.mapreduce.Job$10.run(Job.java:1293)
> 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.mapreduce.Job.submit(Job.java:1293)
> at
> org.apache.hadoop.mapreduce.lib.jobcontrol.ControlledJob.submit(ControlledJob.java:335)
> 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.pig.backend.hadoop23.PigJobControl.submit(PigJobControl.java:128)
> at
> org.apache.pig.backend.hadoop23.PigJobControl.run(PigJobControl.java:194)
> at java.lang.Thread.run(Thread.java:745)
> at
> org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.MapReduceLauncher$1.run(MapReduceLauncher.java:276)
> {code}
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