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Posted to dev@hive.apache.org by "Mithun Radhakrishnan (JIRA)" <ji...@apache.org> on 2017/10/19 22:16:00 UTC

[jira] [Created] (HIVE-17853) RetryingMetaStoreClient loses UGI impersonation-context when reconnecting after timeout

Mithun Radhakrishnan created HIVE-17853:
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             Summary: RetryingMetaStoreClient loses UGI impersonation-context when reconnecting after timeout
                 Key: HIVE-17853
                 URL: https://issues.apache.org/jira/browse/HIVE-17853
             Project: Hive
          Issue Type: Bug
          Components: Metastore
    Affects Versions: 3.0.0, 2.4.0, 2.2.1
            Reporter: Mithun Radhakrishnan
            Assignee: Chris Drome
            Priority: Critical


The {{RetryingMetaStoreClient}} is used to automatically reconnect to the Hive metastore, after client timeout, transparently to the user.

In case of user impersonation (e.g. Oozie super-user {{oozie}} impersonating a Hadoop user {{mithun}}, to run a workflow), in case of timeout, we find that the reconnect causes the {{UGI.doAs()}} context to be lost. Any further metastore operations will be attempted as the login-user ({{oozie}}), as opposed to the effective user ({{mithunr}}).

We should have a fix for this shortly.



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