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From "Ravi Gummadi (JIRA)" <j...@apache.org>
Subject [jira] Commented: (MAPREDUCE-1612) job conf file is not accessible from job history web page
Date Fri, 19 Mar 2010 18:36:27 GMT

    [ https://issues.apache.org/jira/browse/MAPREDUCE-1612?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12847504#action_12847504
] 

Ravi Gummadi commented on MAPREDUCE-1612:
-----------------------------------------

loadResource(Path) in Configuration.java is assuming that only paths that can come to this
method can be on local file system. But jobconf_history.jsp sends Path that is there on DFS
causing this NPE. As it is assuming the path to be local file system, looks like fixing Configuration.java
seems to be not possible.

Regarding getting job view ACLs from history file:  As getting job view ACLs from conf file
is also going to DFS twice(once for loading the JobConf, and one more time for passing it
to the xml formatter), getting job view ACLs from history file also seems reasonable. Also,
since jobconf_history.jsp is the only JSP that is currently getting ACLs from conf file and
every other history related JSP is getting the ACLs from history file itself, making this
change would make things consistent also.

> job conf file is not accessible from job history web page
> ---------------------------------------------------------
>
>                 Key: MAPREDUCE-1612
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-1612
>             Project: Hadoop Map/Reduce
>          Issue Type: Bug
>          Components: jobtracker
>    Affects Versions: 0.22.0
>            Reporter: Ravi Gummadi
>            Assignee: Ravi Gummadi
>             Fix For: 0.22.0
>
>         Attachments: jobconf_history_jsp.fix.20S.patch
>
>
> Clicking on conf file link from job history web page is causing an NPE if history file(and
the job conf file) are stored on DFS. This NPE is from jobconf_history.jsp because jobConf
built from path on DFS is not having any properties.

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