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From "Subru Krishnan (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-6900) ZooKeeper based implementation of the FederationStateStore
Date Mon, 14 Aug 2017 19:05:00 GMT

    [ https://issues.apache.org/jira/browse/YARN-6900?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16126237#comment-16126237
] 

Subru Krishnan commented on YARN-6900:
--------------------------------------

[~elgoiri], to answer your question, I feel we should update the default store to ZK. The
test cases are fairly straightforward to fix:
* All the policy based ones use {{FederationPoliciesTestUtil::initFacade}}, so simply set
the store impl to in-memory there.
* We should add a before method in {{TestFederationStateStoreFacadeRetry}} and move the config
creation, max retry and in-memory store setting there.
* Similarly we can set the in-memory store in the {{TestFederationStateStoreFacade}} constructor.

Can you take a look at why {{TestZookeeperFederationStateStore}} is failing.

> ZooKeeper based implementation of the FederationStateStore
> ----------------------------------------------------------
>
>                 Key: YARN-6900
>                 URL: https://issues.apache.org/jira/browse/YARN-6900
>             Project: Hadoop YARN
>          Issue Type: Sub-task
>          Components: federation, nodemanager, resourcemanager
>            Reporter: Subru Krishnan
>            Assignee: Íñigo Goiri
>         Attachments: YARN-6900-002.patch, YARN-6900-003.patch, YARN-6900-004.patch, YARN-6900-005.patch,
YARN-6900-006.patch, YARN-6900-007.patch, YARN-6900-YARN-2915-000.patch, YARN-6900-YARN-2915-001.patch
>
>
> YARN-5408 defines the unified {{FederationStateStore}} API. Currently we only support
SQL based stores, this JIRA tracks adding a ZooKeeper based implementation for simplifying
deployment as it's already popularly used for {{RMStateStore}}.



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