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Posted to yarn-issues@hadoop.apache.org by "Ray Chiang (JIRA)" <ji...@apache.org> on 2017/07/18 19:44:00 UTC
[jira] [Updated] (YARN-6127) Add support for work preserving NM
restart when AMRMProxy is enabled
[ https://issues.apache.org/jira/browse/YARN-6127?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Ray Chiang updated YARN-6127:
-----------------------------
Hadoop Flags: Incompatible change
Release Note:
This breaks rolling upgrades because it changes the major version of the NM state store schema. Therefore when a new NM comes up on an old state store it crashes.
The state store versions for this change have been updated in YARN-6798.
> Add support for work preserving NM restart when AMRMProxy is enabled
> --------------------------------------------------------------------
>
> Key: YARN-6127
> URL: https://issues.apache.org/jira/browse/YARN-6127
> Project: Hadoop YARN
> Issue Type: Sub-task
> Components: amrmproxy, nodemanager
> Reporter: Subru Krishnan
> Assignee: Botong Huang
> Fix For: 2.9.0, 3.0.0-alpha4
>
> Attachments: YARN-6127-branch-2.v1.patch, YARN-6127.v1.patch, YARN-6127.v2.patch, YARN-6127.v3.patch, YARN-6127.v4.patch
>
>
> YARN-1336 added the ability to restart NM without loosing any running containers. In a Federated YARN environment, there's additional state in the {{AMRMProxy}} to allow for spanning across multiple sub-clusters, so we need to enhance {{AMRMProxy}} to support work-preserving restart.
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