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From "Sushanth Sowmyan (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HIVE-8850) ObjectStore:: rollbackTransaction() and getHelper class needs to be looked into further.
Date Tue, 09 Dec 2014 01:07:12 GMT

    [ https://issues.apache.org/jira/browse/HIVE-8850?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14238783#comment-14238783
] 

Sushanth Sowmyan commented on HIVE-8850:
----------------------------------------

Since the latest patch is very similar in state to what Hari initially came up with except
for the change to openTransaction that Chaoyu suggested, I think it's fair to reassign back
to Hari for this, doing so, and will commit with my +1 and Chaoyu's.

> ObjectStore:: rollbackTransaction() and getHelper class needs to be looked into further.
> ----------------------------------------------------------------------------------------
>
>                 Key: HIVE-8850
>                 URL: https://issues.apache.org/jira/browse/HIVE-8850
>             Project: Hive
>          Issue Type: Bug
>          Components: Metastore
>            Reporter: Hari Sankar Sivarama Subramaniyan
>            Assignee: Sushanth Sowmyan
>         Attachments: HIVE-8850.1.patch, HIVE-8850.2.patch, HIVE-8850.3.patch, HIVE-8850.4.patch
>
>
> We can run into issues as described below:
> Hive script adds 2800 partitions to a table and during this it can get a SQLState 08S01
[Communication Link Error] and bonecp kill all the connections in the pool. The partitions
are added and a create table statement executes (Metering_IngestedData_Compressed). The map
job finishes successfully and while moving the table to the hive warehouse the ObjectStore.java
commitTransaction() raises the error: commitTransaction was called but openTransactionCalls
= 0. This probably indicates that there are unbalanced calls to openTransaction/commitTransaction



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