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From "Devaraj Das (JIRA)" <>
Subject [jira] Updated: (HIVE-1696) Add delegation token support to metastore
Date Thu, 30 Dec 2010 09:52:46 GMT


Devaraj Das updated HIVE-1696:

    Attachment: hive-1696-3-with-gen-code.patch

Patch with the generated code..

> Add delegation token support to metastore
> -----------------------------------------
>                 Key: HIVE-1696
>                 URL:
>             Project: Hive
>          Issue Type: Sub-task
>          Components: Metastore, Security, Server Infrastructure
>            Reporter: Todd Lipcon
>             Fix For: 0.7.0
>         Attachments: hive-1696-1-with-gen-code.patch, hive-1696-1.patch, hive-1696-3-with-gen-code.patch,
hive-1696-3.patch, hive_1696.patch, hive_1696.patch, hive_1696_no-thrift.patch
> As discussed in HIVE-842, kerberos authentication is only sufficient for authentication
of a hive user client to the metastore. There are other cases where thrift calls need to be
authenticated when the caller is running in an environment without kerberos credentials. For
example, an MR task running as part of a hive job may want to report statistics to the metastore,
or a job may be running within the context of Oozie or Hive Server.
> This JIRA is to implement support of delegation tokens for the metastore. The concept
of a delegation token is borrowed from the Hadoop security design - the quick summary is that
a kerberos-authenticated client may retrieve a binary token from the server. This token can
then be passed to other clients which can use it to achieve authentication as the original
user in lieu of a kerberos ticket.

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