[
https://issues.apache.org/jira/browse/YARN-6355?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16276522#comment-16276522
]
Weiwei Yang commented on YARN-6355:
-----------------------------------
Hi [~asuresh]
One question, if user specifies several processors in the chain by property
{{yarn.resourcemanager.application-master-service.processors}}, e.g P1, P2, P3.
The actual chain seems to be defined as
{noformat}
P1 -> P2 -> P3 -> DefaultAMSProcessor
{noformat}
Why {{DefaultAMSProcessor}} should be the last one in the chain? With the
context of opportunistic containers, isn't it making more sense to re-order to
{noformat}
DefaultAMSProcessor -> P1 -> P2 -> P3
{noformat}
so that guaranteed containers always get allocated first?
Thanks
> Preprocessor framework for AM and Client interactions with the RM
> -----------------------------------------------------------------
>
> Key: YARN-6355
> URL: https://issues.apache.org/jira/browse/YARN-6355
> Project: Hadoop YARN
> Issue Type: Improvement
> Reporter: Arun Suresh
> Assignee: Arun Suresh
> Labels: amrmproxy, resourcemanager
> Attachments: YARN-6355-one-pager.pdf, YARN-6355.001.patch,
> YARN-6355.002.patch, YARN-6355.003.patch, YARN-6355.004.patch,
> YARN-6355.005.patch, YARN-6355.006.patch, YARN-6355.007.patch
>
>
> Currently on the NM, we have the {{AMRMProxy}} framework to intercept the AM
> <-> RM communication and enforce policies. This is used both by YARN
> federation (YARN-2915) as well as Distributed Scheduling (YARN-2877).
> This JIRA proposes to introduce a similar framework on the the RM side, so
> that pluggable policies can be enforced on ApplicationMasterService centrally
> as well.
> This would be similar in spirit to a Java Servlet Filter Chain. Where the
> order of the interceptors can declared externally.
> Once possible usecase would be:
> the {{OpportunisticContainerAllocatorAMService}} is implemented as a wrapper
> over the {{ApplicationMasterService}}. It would probably be better to
> implement it as an Interceptor.
--
This message was sent by Atlassian JIRA
(v6.4.14#64029)
---------------------------------------------------------------------
To unsubscribe, e-mail: [email protected]
For additional commands, e-mail: [email protected]
