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From "Carl Steinbach (JIRA)" <>
Subject [jira] [Resolved] (HIVE-3469) When new hive cluster is started, hive jdbc client hangs.
Date Mon, 24 Sep 2012 06:25:07 GMT


Carl Steinbach resolved HIVE-3469.

    Resolution: Duplicate

@Rohit: Thanks for verifying that this is duplicate.
> When new hive cluster is started, hive jdbc client hangs.
> ---------------------------------------------------------
>                 Key: HIVE-3469
>                 URL:
>             Project: Hive
>          Issue Type: Bug
>          Components: Clients, Metastore, Thrift API
>         Environment: Hadoop-2.0.1 + Hive-0.9.0
>            Reporter: rohithsharma
> The scenario is as follows  : 
> For the new hive cluster , when multiple hive client is getting the connection for hive
server , there are 3 problems in metastore , hive client.
> 1. Since the derby is booted at first connection,  multiple client try to create database.One
of the client succeed and another one throw exception because of *unique primary constraint*
in metatables.
> 2. Once the Runtime exception is throw, the hive client which is made connection request
will hang forever.
> 3. Potentially "ConcurrentModificationException" is thrown by JDOQuery.

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