[jira] [Commented] (YARN-3670) Add JobConf XML link in Yarn RM UI

2015-05-18 Thread Jason Lowe (JIRA)

[ 
https://issues.apache.org/jira/browse/YARN-3670?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanelfocusedCommentId=14548047#comment-14548047
 ] 

Jason Lowe commented on YARN-3670:
--

Sure, we could solve this by adding APIs for applications to convey 
job-specific settings or metrics.  However this is far from a minor 
improvement and could be quite involved, including questions like where will 
these settings be stored (probably timelineserver), limits on the key/value 
sizes, limits on total amount of data that can be stored, etc.

 Add JobConf XML link in Yarn RM UI
 --

 Key: YARN-3670
 URL: https://issues.apache.org/jira/browse/YARN-3670
 Project: Hadoop YARN
  Issue Type: Improvement
  Components: webapp
Affects Versions: 2.6.0
 Environment: HDP 2.2
Reporter: Hari Sekhon
Priority: Minor

 Request to add JobConf xml link for each application in the RM UI so I don't 
 have to keep recovering it from HDFS to debug if job settings are taking 
 effect.



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[jira] [Commented] (YARN-3670) Add JobConf XML link in Yarn RM UI

2015-05-18 Thread Hari Sekhon (JIRA)

[ 
https://issues.apache.org/jira/browse/YARN-3670?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanelfocusedCommentId=14548039#comment-14548039
 ] 

Hari Sekhon commented on YARN-3670:
---

I understand (you can't imagine how often I've had to refrain from asking for 
Maps and Reduces to be available in UI like trusty old MRv1). At the moment 
it's too opaque, which is a first generation side-effect of Yarn being a 
generally abstracting resource manager.

However, perhaps it would be possible to create a generic mechanism that allows 
jobs to publish key-value pairs which could be populated with either settings 
or counters to be displayed via a new named link also specified per set of 
key-value pairs, such as a job could publish counters or configuration. In 
this way both the MapReduce client, the Tez client and any other YARN apps 
would have the ability to publish any arbitrary key-value pair table of 
information to YARN to display in the UI?

This would help immensely with debugging yarn jobs.

 Add JobConf XML link in Yarn RM UI
 --

 Key: YARN-3670
 URL: https://issues.apache.org/jira/browse/YARN-3670
 Project: Hadoop YARN
  Issue Type: Improvement
  Components: webapp
Affects Versions: 2.6.0
 Environment: HDP 2.2
Reporter: Hari Sekhon
Priority: Minor

 Request to add JobConf xml link for each application in the RM UI so I don't 
 have to keep recovering it from HDFS to debug if job settings are taking 
 effect.



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[jira] [Commented] (YARN-3670) Add JobConf XML link in Yarn RM UI

2015-05-18 Thread Jason Lowe (JIRA)

[ 
https://issues.apache.org/jira/browse/YARN-3670?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanelfocusedCommentId=14548020#comment-14548020
 ] 

Jason Lowe commented on YARN-3670:
--

This is not easily implementable in the general case, since not all YARN 
applications have a job conf that is an XML file and accessible via a link.  
While this is true for MapReduce jobs, YARN is not MapReduce-specific.  This is 
similar to asking for the number of maps and reduces to be available on the RM 
UI.


 Add JobConf XML link in Yarn RM UI
 --

 Key: YARN-3670
 URL: https://issues.apache.org/jira/browse/YARN-3670
 Project: Hadoop YARN
  Issue Type: Improvement
  Components: webapp
Affects Versions: 2.6.0
 Environment: HDP 2.2
Reporter: Hari Sekhon
Priority: Minor

 Request to add JobConf xml link for each application in the RM UI so I don't 
 have to keep recovering it from HDFS to debug if job settings are taking 
 effect.



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