[
https://issues.apache.org/jira/browse/YARN-5333?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15389022#comment-15389022
]
Jian He commented on YARN-5333:
-------------------------------
If the initialization of active services is done before starting services,
(currently done when transitioning to standby), such problem will not occur.
[~rohithsharma]/ [~sunilg]/[~hex108], are these
[problems|https://issues.apache.org/jira/browse/YARN-3893?focusedCommentId=14708470&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-14708470]
solvable ? I think switch time is fine. didn't quite get this:
bq. And RMWebApp has dependency on clienRMService for starting webapps. Without
clientRMService initialization, RMWebapp can not be started.
> Some recovered apps are put into default queue when RM HA
> ---------------------------------------------------------
>
> Key: YARN-5333
> URL: https://issues.apache.org/jira/browse/YARN-5333
> Project: Hadoop YARN
> Issue Type: Bug
> Reporter: Jun Gong
> Assignee: Jun Gong
> Attachments: YARN-5333.01.patch, YARN-5333.02.patch,
> YARN-5333.03.patch
>
>
> Enable RM HA and use FairScheduler,
> {{yarn.scheduler.fair.allow-undeclared-pools}} is set to false,
> {{yarn.scheduler.fair.user-as-default-queue}} is set to false.
> Reproduce steps:
> 1. Start two RMs.
> 2. After RMs are running, change both RM's file
> {{etc/hadoop/fair-scheduler.xml}}, then add some queues.
> 3. Submit some apps to the new added queues.
> 4. Stop the active RM, then the standby RM will transit to active and recover
> apps.
> However the new active RM will put recovered apps into default queue because
> it might have not loaded the new {{fair-scheduler.xml}}. We need call
> {{initScheduler}} before start active services or bring {{refreshAll()}} in
> front of {{rm.transitionToActive()}}. *It seems it is also important for
> other scheduler*.
--
This message was sent by Atlassian JIRA
(v6.3.4#6332)
---------------------------------------------------------------------
To unsubscribe, e-mail: yarn-issues-unsubscr...@hadoop.apache.org
For additional commands, e-mail: yarn-issues-h...@hadoop.apache.org
