You are viewing a plain text version of this content. The canonical link for it is here.
Posted to yarn-issues@hadoop.apache.org by "Sunil Govindan (JIRA)" <ji...@apache.org> on 2018/11/17 03:24:10 UTC
[jira] [Updated] (YARN-4758) Enable discovery of AMs by containers
[ https://issues.apache.org/jira/browse/YARN-4758?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Sunil Govindan updated YARN-4758:
---------------------------------
Target Version/s: 3.3.0 (was: 3.2.0)
Bulk update: moved all 3.2.0 non-blocker issues, please move back if it is a blocker.
> Enable discovery of AMs by containers
> -------------------------------------
>
> Key: YARN-4758
> URL: https://issues.apache.org/jira/browse/YARN-4758
> Project: Hadoop YARN
> Issue Type: New Feature
> Reporter: Vinod Kumar Vavilapalli
> Assignee: Junping Du
> Priority: Major
> Attachments: YARN-4758. AM Discovery Service for YARN Container.pdf
>
>
> {color:red}
> This is already discussed on the umbrella JIRA YARN-1489.
> Copying some of my condensed summary from the design doc (section 3.2.10.3) of YARN-4692.
> {color}
> Even after the existing work in Workpreserving AM restart (Section 3.1.2 / YARN-1489), we still haven’t solved the problem of old running containers not knowing where the new AM starts running after the previous AM crashes. This is a specifically important problem to be solved for long running services where we’d like to avoid killing service containers when AMs failover. So far, we left this as a task for the apps, but solving it in YARN is much desirable. [(Task) This looks very much like service-registry (YARN-913), but for appcontainers to discover their own AMs.
> Combining this requirement (of any container being able to find their AM across failovers) with those of services (to be able to find through DNS where a service container is running - YARN-4757) will put our registry scalability needs to be much higher than that of just service endpoints. This calls for a more distributed solution for registry readers something that is discussed in the comments section of YARN-1489 and MAPREDUCE-6608.
> See comment https://issues.apache.org/jira/browse/YARN-1489?focusedCommentId=13862359&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-13862359
--
This message was sent by Atlassian JIRA
(v7.6.3#76005)
---------------------------------------------------------------------
To unsubscribe, e-mail: yarn-issues-unsubscribe@hadoop.apache.org
For additional commands, e-mail: yarn-issues-help@hadoop.apache.org