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From "Ganesha Shreedhara (JIRA)" <>
Subject [jira] [Updated] (HIVE-18859) Incorrect handling of thrift metastore exceptions
Date Tue, 06 Mar 2018 12:55:00 GMT


Ganesha Shreedhara updated HIVE-18859:
    Attachment: HIVE-18859.patch

> Incorrect handling of thrift metastore exceptions
> -------------------------------------------------
>                 Key: HIVE-18859
>                 URL:
>             Project: Hive
>          Issue Type: Bug
>    Affects Versions: 1.2.0, 2.1.1
>            Reporter: Ganesha Shreedhara
>            Assignee: Ganesha Shreedhara
>            Priority: Major
>         Attachments: HIVE-18859.patch
> Currently any run time exception thrown in thrift metastore during the following operations
is not getting sent to hive execution engine.
>  * grant/revoke role
>  * grant/revoke privileges
>  * create role
> This is because ThriftHiveMetastore just handles MetaException and throws TException
during the processing of these requests.  So, the command just fails at thrift metastore
end when there is run time exception (Exception can be seen in metastore log) but the hive
execution engine will keep on waiting for the response from thrift metatstore.
> Steps to reproduce this problem :
> Launch thrift metastore
> Launch hive cli by passing --hiveconf hive.metastore.uris=thrift:// (pass
the thrift metatstore host and port)
> Execute the following commands:
>  # set role admin
>  # create role test; (succeeds)
>  # create role test; ( hive version 2.1.1 : command is stuck, waiting for the response
from thrift metastore; hive version 1.2.1: command fails with exception as null) 
> I have uploaded the patch which has the fix in which I am handling the checked exceptions
in MetaException and throwing unchecked exceptions using TException which fixes the problem.
Please review and suggest if there is a better way of handling this issue.

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