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https://issues.apache.org/jira/browse/HIVE-12270?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15178762#comment-15178762
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Szehon Ho commented on HIVE-12270:
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Sorry for the basic question.. but just wanted to clarify what is the issue
from using HMSHandler in HS2? Ie, what is the behavior change if we change to
HiveMetaStoreClient?
> Add DBTokenStore support to HS2 delegation token
> ------------------------------------------------
>
> Key: HIVE-12270
> URL: https://issues.apache.org/jira/browse/HIVE-12270
> Project: Hive
> Issue Type: New Feature
> Reporter: Chaoyu Tang
> Assignee: Chaoyu Tang
> Attachments: HIVE-12270.nothrift.patch, HIVE-12270.patch
>
>
> DBTokenStore was initially introduced by HIVE-3255 in Hive-0.12 and it is
> mainly for HMS delegation token. Later in Hive-0.13, the HS2 delegation token
> support was introduced by HIVE-5155 but it used MemoryTokenStore as token
> store. That the HIVE-9622 uses the shared RawStore (or HMSHandler) to access
> the token/keys information in HMS DB directly from HS2 seems not the right
> approach to support DBTokenStore in HS2. I think we should use
> HiveMetaStoreClient in HS2 instead.
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