You are viewing a plain text version of this content. The canonical link for it is here.
Posted to dev@ambari.apache.org by "Jaimin D Jetly (JIRA)" <ji...@apache.org> on 2013/10/25 00:14:02 UTC
[jira] [Created] (AMBARI-3587) Reassign Master (non-secure):
JobTracker reassignment does not need manual step.
Jaimin D Jetly created AMBARI-3587:
--------------------------------------
Summary: Reassign Master (non-secure): JobTracker reassignment does not need manual step.
Key: AMBARI-3587
URL: https://issues.apache.org/jira/browse/AMBARI-3587
Project: Ambari
Issue Type: Task
Components: client
Affects Versions: 1.4.2
Reporter: Jaimin D Jetly
Assignee: Jaimin D Jetly
Fix For: 1.4.2
Attachments: Reassign master JobTracker.png
On manual step for JobTracker reassignment (non-secure cluster), We ask for copying content of directories listed in _mapred.local.dir_ property of mapred-site.xml to newly assigned JobTracker host. Apart from sub-directory _jobTracker_ inside the directory path stated by _mapred.local.dir_ property , all other sub-directories are used by TaskTracker and are never accessed by JobTracker.
JobTracker creates job configuration xml file and it's CRC file for a running job inside <mapred.local.dir value>/jobTracker directory. These are *temporary files* which are created when job starts and deleted after the job is completed.
I was able to successfully reassign JobTracker without executing manual step in the wizard. Smoke test for all services passed successfully on the last step of the wizard.
*As a resolution to this ticket, We need to remove Manual commands step (Reassign master JobTracker.png) from JobTracker reassignment wizard in non-secure setup.*
Note: JobTracker Log directories are useful source of information that a user might want to copy to the target host but it's not a mandatory step and can be a part of ambari docs.
--
This message was sent by Atlassian JIRA
(v6.1#6144)