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https://issues.apache.org/jira/browse/YARN-5123?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15300089#comment-15300089
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Karthik Kambatla commented on YARN-5123:
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Thanks for the clarification, [~lavkesh]. Again sorry for the SQL-ignorance,
but would it be possible to have a generic enough implementation that people
could configure to use with any SQL store?
bq. we are looking at using ZooKeeper for leader election/fencing and a SQL
based StateStore.
When you say you would like to use ZK for fencing with a store, will the SQL
operation be wrapped in a ZK create-delete-znode and executed as a transaction?
IMO, the fencing should belong to the store.
> SQL based RM state store
> ------------------------
>
> Key: YARN-5123
> URL: https://issues.apache.org/jira/browse/YARN-5123
> Project: Hadoop YARN
> Issue Type: New Feature
> Affects Versions: 2.6.0
> Reporter: Lavkesh Lahngir
> Attachments: High Availability In YARN Resource Manager using SQL
> Based StateStore.pdf, sqlstatestore.patch
>
>
> In our setup, zookeeper based RM state store didn't work. We ended up
> implementing our own SQL based state store. Here is a patch, if anybody else
> wants to use it.
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