Mailing-List: contact yarn-issues-help@hadoop.apache.org; run by ezmlm
Precedence: bulk
Reply-To: yarn-issues@hadoop.apache.org
Date: Mon, 20 Apr 2015 21:35:01 +0000 (UTC)
From: "Wangda Tan (JIRA)" <jira@apache.org>
To: yarn-issues@hadoop.apache.org
Message-ID: <JIRA.12738749.1409734565000.52809.1429565701001@Atlassian.JIRA>
In-Reply-To: <JIRA.12738749.1409734565000@Atlassian.JIRA>
References: <JIRA.12738749.1409734565000@Atlassian.JIRA>
 <JIRA.12738749.1409734565644@arcas>
Subject: [jira] [Updated] (YARN-2498) Respect labels in preemption policy of
 capacity scheduler
MIME-Version: 1.0
Content-Type: text/plain; charset=utf-8
Content-Transfer-Encoding: 7bit


     [ https://issues.apache.org/jira/browse/YARN-2498?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Wangda Tan updated YARN-2498:
-----------------------------
    Description: 
There're 3 stages in ProportionalCapacityPreemptionPolicy,
# Recursively calculate {{ideal_assigned}} for queue. This is depends on available resource, resource used/pending in each queue and guaranteed capacity of each queue.
# Mark to-be preempted containers: For each over-satisfied queue, it will mark some containers will be preempted.
# Notify scheduler about to-be preempted container.

We need respect labels in the cluster for both #1 and #2:
For #1, when calculating ideal_assigned for each queue, we need get by-partition-ideal-assigned according to queue's guaranteed/maximum/used/pending resource on specific partition.
For #2, when we make decision about whether we need preempt a container, we need make sure, resource this container is *possibly* usable by a queue which is under-satisfied and has pending resource.

In addition, we need to handle ignore_partition_exclusivity case, when we need to preempt containers from a queue's partition, we will first preempt ignore_partition_exclusivity allocated containers.

  was:
There're 3 stages in ProportionalCapacityPreemptionPolicy,
# Recursively calculate {{ideal_assigned}} for queue. This is depends on available resource, resource used/pending in each queue and guaranteed capacity of each queue.
# Mark to-be preempted containers: For each over-satisfied queue, it will mark some containers will be preempted.
# Notify scheduler about to-be preempted container.

We need respect labels in the cluster for both #1 and #2:
For #1, when there're some resource available in the cluster, we shouldn't assign it to a queue (by increasing {{ideal_assigned}}) if the queue cannot access such labels
For #2, when we make decision about whether we need preempt a container, we need make sure, resource this container is *possibly* usable by a queue which is under-satisfied and has pending resource.


> Respect labels in preemption policy of capacity scheduler
> ---------------------------------------------------------
>
>                 Key: YARN-2498
>                 URL: https://issues.apache.org/jira/browse/YARN-2498
>             Project: Hadoop YARN
>          Issue Type: Sub-task
>          Components: resourcemanager
>            Reporter: Wangda Tan
>            Assignee: Wangda Tan
>         Attachments: STALED-YARN-2498.zip, YARN-2498.1.patch
>
>
> There're 3 stages in ProportionalCapacityPreemptionPolicy,
> # Recursively calculate {{ideal_assigned}} for queue. This is depends on available resource, resource used/pending in each queue and guaranteed capacity of each queue.
> # Mark to-be preempted containers: For each over-satisfied queue, it will mark some containers will be preempted.
> # Notify scheduler about to-be preempted container.
> We need respect labels in the cluster for both #1 and #2:
> For #1, when calculating ideal_assigned for each queue, we need get by-partition-ideal-assigned according to queue's guaranteed/maximum/used/pending resource on specific partition.
> For #2, when we make decision about whether we need preempt a container, we need make sure, resource this container is *possibly* usable by a queue which is under-satisfied and has pending resource.
> In addition, we need to handle ignore_partition_exclusivity case, when we need to preempt containers from a queue's partition, we will first preempt ignore_partition_exclusivity allocated containers.


--
This message was sent by Atlassian JIRA
(v6.3.4#6332)