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https://issues.apache.org/jira/browse/HIVE-2029?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13034294#comment-13034294
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Ashutosh Chauhan commented on HIVE-2029:
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My question didn't get any answers. So, let me ask another question. I think
failover is present in datanucleus 3.0 and Hive is still on 2.x. So, that may
be the reason that Hive implemented its own failover. If this is correct, shall
we first upgrade Datanucleus version to 3.x and then switch to Datanucleus
functionality instead of our own retrials. If there is an agreement then patch
on this ticket can be committed as is and I will open tickets for followup
work.
> MetaStore ConnectionURL updates need to trigger creation of Default DB if it
> doesn't exist
> ------------------------------------------------------------------------------------------
>
> Key: HIVE-2029
> URL: https://issues.apache.org/jira/browse/HIVE-2029
> Project: Hive
> Issue Type: Bug
> Components: Metastore
> Affects Versions: 0.7.0
> Reporter: Carl Steinbach
> Attachments: hive_2029.patch
>
>
> HIVE-1219 defined the JDOConnectionURLHook plugin, and integrated this
> feature into HiveMetaStore. On MetaStore operation failures, this plugin is
> used to update the metastore ConnectionURL configuration property. Currently
> this update triggers the reinitialization of the underlying JDO
> PersistenceManager, but it does not trigger checks to see if the default
> database exists, nor will it create the default database if it does not
> exist. It needs to do both.
> This ticket also covers removing the 'hive.metastore.force.reload.conf'
> property from HiveConf and HiveMetaStore. This property should not have been
> added in the first place since its sole purpose is to facilitate testing of
> the JDOConnectionURLHook mechanism by unnaturally forcing reinitialization of
> the PersistenceManager.
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