[jira] [Updated] (YARN-9499) Support application catalog high availability

["Eric Yang (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/YARN-9499?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Eric Yang updated YARN-9499:
----------------------------
    Parent Issue: YARN-10078  (was: YARN-9414)

> Support application catalog high availability
> ---------------------------------------------
>
>                 Key: YARN-9499
>                 URL: https://issues.apache.org/jira/browse/YARN-9499
>             Project: Hadoop YARN
>          Issue Type: Sub-task
>            Reporter: Eric Yang
>            Priority: Major
>
> Application catalog is mostly a stateless web application.  It depends on backend services to store states.  At this time, Solr is a single instance server running in the same application catalog container.  It is possible to externalize application catalog data to Solr Cloud to remove the single instance Solr server.  This improves high availability of application catalog.
> This task is to focus on how to configure connection to external Solr cloud for application catalog container.



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