[ 
https://issues.apache.org/jira/browse/MAPREDUCE-3398?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13168132#comment-13168132
 ] 

Vinod Kumar Vavilapalli commented on MAPREDUCE-3398:
----------------------------------------------------

Few comments on the patch.

NodeStatusPBImpl.setKeepAliveApplications(): clears containerStatuses? (!)

I guess we can knock off 
YarnConfiguration.RM_DELEGATION_TOKEN_KEEPALIVE_TIME_MS altogether to instead 
use the NM-expiry interval itself. This configuration anyways needs to capped 
by the expiry interval. We may need it only if we ever want to lessen the 
keep-alive, but with the token-expiry usually in the range of 24 hours, we will 
hardly ever need to lessen it.

After doing the above, we can drop the documentation changes too. 
removal-interval-ms doesn't need to be documented.

NodeStatusUpdaterImpl:
 - createKeepAliveApplicationList(): The two loops can be rolled into one, a 
single loop iterating over appTokenKeepAliveMap?

DelegationTokenRenewer:
 - May I suggesting renaming DelegationTokenRenewer.removeApplication() to 
applicationFinished() and removeApplicationInternal() to 
removeApplicationFromRenewal()?
                
> Log Aggregation broken in Secure Mode
> -------------------------------------
>
>                 Key: MAPREDUCE-3398
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-3398
>             Project: Hadoop Map/Reduce
>          Issue Type: Bug
>          Components: mrv2, nodemanager
>    Affects Versions: 0.23.0
>            Reporter: Siddharth Seth
>            Assignee: Siddharth Seth
>            Priority: Critical
>             Fix For: 0.23.1
>
>         Attachments: MR3398_v1.txt, MR3398_v2.txt, MR3398_v3.txt
>
>
> Log aggregation in secure mode does not work with MAPREDUCE-2977. The 
> nodemanager relies on the users credentials to write out logs to HDFS. These 
> credentials are currently cancelled once a job completes, before the NM can 
> write out the logs.

--
This message is automatically generated by JIRA.
If you think it was sent incorrectly, please contact your JIRA administrators: 
https://issues.apache.org/jira/secure/ContactAdministrators!default.jspa
For more information on JIRA, see: http://www.atlassian.com/software/jira

        

Reply via email to