[
https://issues.apache.org/jira/browse/YARN-7939?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16437773#comment-16437773
]
Chandni Singh commented on YARN-7939:
-------------------------------------
[~eyang]
{quote}
2018-04-13 17:23:08,321 ERROR client.ApiServiceClient: Failed to start service
abc, because it already exists.
{quote}
I think the upgrade of the service was not initiated due to some error and the
service is NOT in "UPGRADING" state which is why you cannot restart it when it
already running.
> Yarn Service Upgrade: add support to upgrade a component instance
> ------------------------------------------------------------------
>
> Key: YARN-7939
> URL: https://issues.apache.org/jira/browse/YARN-7939
> Project: Hadoop YARN
> Issue Type: Sub-task
> Reporter: Chandni Singh
> Assignee: Chandni Singh
> Priority: Major
> Attachments: YARN-7939.001.patch, YARN-7939.002.patch,
> YARN-7939.003.patch, YARN-7939.004.patch, YARN-7939.005.patch,
> YARN-7939.006.patch, YARN-7939.007.patch
>
>
> Yarn core supports in-place upgrade of containers. A yarn service can
> leverage that to provide in-place upgrade of component instances. Please see
> YARN-7512 for details.
> Will add support to upgrade a single component instance first and then
> iteratively add other APIs and features.
>
--
This message was sent by Atlassian JIRA
(v7.6.3#76005)
---------------------------------------------------------------------
To unsubscribe, e-mail: yarn-issues-unsubscr...@hadoop.apache.org
For additional commands, e-mail: yarn-issues-h...@hadoop.apache.org
