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Posted to yarn-issues@hadoop.apache.org by "Chandni Singh (JIRA)" <ji...@apache.org> on 2018/08/14 19:44:00 UTC
[jira] [Updated] (YARN-8402) Yarn Service Destroy: Delete service
entries from Zookeeper in the ServiceMaster instead of ServiceClient in the
RM
[ https://issues.apache.org/jira/browse/YARN-8402?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Chandni Singh updated YARN-8402:
--------------------------------
Parent Issue: YARN-7054 (was: YARN-7512)
> Yarn Service Destroy: Delete service entries from Zookeeper in the ServiceMaster instead of ServiceClient in the RM
> -------------------------------------------------------------------------------------------------------------------
>
> Key: YARN-8402
> URL: https://issues.apache.org/jira/browse/YARN-8402
> Project: Hadoop YARN
> Issue Type: Sub-task
> Reporter: Chandni Singh
> Assignee: Chandni Singh
> Priority: Major
>
> RM slows down considerably when multiple services are destroyed simultaneously.
> 1. Started approx 1000 services
> 2. Destroyed all the 1000 services.
> Observed considerable slowness in RM after this.
> The {{ServiceClient}} in RM uses the {{CuratorClient}} to delete zookeeper entries.
> The zookeeper client is the bottleneck and this could be avoided if the zookeeper entry can be deleted from the AM and then the {{ServiceClient}} can kill the app.
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