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https://issues.apache.org/jira/browse/HIVE-3805?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13533106#comment-13533106
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Ashutosh Chauhan commented on HIVE-3805:
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If you look at hiveserver2 implementation over at HIVE-2935, it has an
implementation of {{Plain}} sasl server. Plain server means sasl server doesn't
use kerberos (or any authentication mechanism) for authenticating thrift client
and at the same time client transfers end user identity to server. Server just
trusts client, since its unsecure mode anyways. This Sasl server is used for
thrift client and server transport in HiveServer2. That is much more cleaner
approach than the current implementation which is really hacky which does an
rpc call to transfer ugi (introduced in HIVE-2616 ), instead of transferring it
at connection setup time. Though, current hacky approach works, its a twisted
design and harder to understand. If there is any interest in wider adoption of
transferring ugi for unsecure connection between thrift client and server, we
should use HS2 mechanism. Further, since HiveServer2 already uses that, we will
have parity in transport layer between HS2 client-server transport and
metastore client-server transport.
> Resolve TODO in TUGIBasedProcessor
> ----------------------------------
>
> Key: HIVE-3805
> URL: https://issues.apache.org/jira/browse/HIVE-3805
> Project: Hive
> Issue Type: Improvement
> Components: Metastore
> Affects Versions: 0.11
> Reporter: Kevin Wilfong
> Assignee: Kevin Wilfong
> Attachments: HIVE-3805.1.patch.txt
>
>
> There's a TODO in TUGIBasedProcessor
> // TODO get rid of following reflection after THRIFT-1465 is fixed.
> Now that we have upgraded to Thrift 9 THRIFT-1465 is available.
> This will also fix an issue where fb303 counters cannot be collected if the
> TUGIBasedProcessor is used.
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