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Posted to issues@hive.apache.org by "Alan Gates (JIRA)" <ji...@apache.org> on 2015/04/27 20:49:40 UTC
[jira] [Updated] (HIVE-10500) Repeated deadlocks in underlying
RDBMS cause transaction or lock failure
[ https://issues.apache.org/jira/browse/HIVE-10500?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Alan Gates updated HIVE-10500:
------------------------------
Attachment: HIVE-10050.patch
This patch makes a couple of changes:
# It adds resets of deadlock count when a transaction is opened or a lock is requested. This wasn't done before which means we may have been building up deadlock counts over several different users.
# It adds a short sleep when a deadlock is detected so that we don't jump right back into the deadlock.
> Repeated deadlocks in underlying RDBMS cause transaction or lock failure
> ------------------------------------------------------------------------
>
> Key: HIVE-10500
> URL: https://issues.apache.org/jira/browse/HIVE-10500
> Project: Hive
> Issue Type: Bug
> Components: Transactions
> Affects Versions: 0.14.0, 1.0.0, 1.1.0
> Reporter: Alan Gates
> Assignee: Alan Gates
> Attachments: HIVE-10050.patch
>
>
> In some cases in a busy system, deadlocks in the metastore RDBMS can cause failures in Hive locks and transactions when using DbTxnManager
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