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https://issues.apache.org/jira/browse/HIVE-9582?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14349614#comment-14349614
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Sushanth Sowmyan commented on HIVE-9582:
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Hi Thiruvel, sorry for taking so long to get to this, I'm looking through this
now.
> HCatalog should use IMetaStoreClient interface
> ----------------------------------------------
>
> Key: HIVE-9582
> URL: https://issues.apache.org/jira/browse/HIVE-9582
> Project: Hive
> Issue Type: Sub-task
> Components: HCatalog, Metastore
> Affects Versions: 0.14.0, 0.13.1
> Reporter: Thiruvel Thirumoolan
> Assignee: Thiruvel Thirumoolan
> Labels: hcatalog, metastore, rolling_upgrade
> Fix For: 0.14.1
>
> Attachments: HIVE-9582.1.patch, HIVE-9582.2.patch, HIVE-9582.3.patch,
> HIVE-9582.4.patch, HIVE-9583.1.patch
>
>
> Hive uses IMetaStoreClient and it makes using RetryingMetaStoreClient easy.
> Hence during a failure, the client retries and possibly succeeds. But
> HCatalog has long been using HiveMetaStoreClient directly and hence failures
> are costly, especially if they are during the commit stage of a job. Its also
> not possible to do rolling upgrade of MetaStore Server.
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