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Posted to yarn-issues@hadoop.apache.org by "Benjamin Teke (Jira)" <ji...@apache.org> on 2021/05/04 16:51:00 UTC
[jira] [Comment Edited] (YARN-7769) FS QueueManager should not
create default queue at init
[ https://issues.apache.org/jira/browse/YARN-7769?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17339139#comment-17339139 ]
Benjamin Teke edited comment on YARN-7769 at 5/4/21, 4:50 PM:
--------------------------------------------------------------
[~wilfreds], [~snemeth] what do we expect from YARN-8951? Running the UT didn't give a NPE, however the unmodified test case caused FS init failure with:
{code:java}
org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair.AllocationConfigurationException: Could get past last queue placement rule without assigning
{code}
This is expected, as the rule without create flag is not terminal. But the NPE didn't occur.
was (Author: bteke):
[~wilfreds], [~snemeth] what do we expect from YARN-8951? Running the UT didn't give a NPE, however the unmodified test case caused FS init failure with:
{code:java}
org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair.AllocationConfigurationException: Could get past last queue placement rule without assigning
{code}
> FS QueueManager should not create default queue at init
> -------------------------------------------------------
>
> Key: YARN-7769
> URL: https://issues.apache.org/jira/browse/YARN-7769
> Project: Hadoop YARN
> Issue Type: Bug
> Components: fairscheduler
> Affects Versions: 3.1.0
> Reporter: Wilfred Spiegelenburg
> Assignee: Benjamin Teke
> Priority: Major
> Attachments: YARN-7769.001.patch, YARN-7769.002.patch, YARN-7769.003.patch
>
>
> Currently the FairScheduler QueueManager automatically creates the default queue. However the default queue does not need to exist. We have two possible cases which we should handle:
> * Based on the placement rule "Default" the name for the default queue might not be default and it should be created with a different name
> * There might not be a "Default" placement rule at all which removes the need to create the queue.
> We should leave the creation of the default queue to the point in time that we can assess if it is needed or not.
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