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https://issues.apache.org/jira/browse/HCATALOG-238?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Mithun Radhakrishnan updated HCATALOG-238:
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Attachment: HCatalog-238__No_Fail_on_missing_message_topic-name.patch
> Absence of msgbus.topic.name should not be deemed as notification-failure.
> --------------------------------------------------------------------------
>
> Key: HCATALOG-238
> URL: https://issues.apache.org/jira/browse/HCATALOG-238
> Project: HCatalog
> Issue Type: Bug
> Components: metastore
> Affects Versions: 0.2, 0.3
> Reporter: Mithun Radhakrishnan
> Fix For: 0.3
>
> Attachments: HCatalog-238__No_Fail_on_missing_message_topic-name.patch
>
>
> If an HCat-table's metadata doesn't specify the msgbus.topic.name, the
> current system throws an exception (from NotificationListener), indicating
> that the property must be set.
> Ordinarily, this would imply that add/dropPartition succeeds, with failures
> turning up only when notifications are sent. (This behaviour is almost
> acceptable.)
> However, this policy precludes any way to selectively disable notifications
> for a particular table (i.e. One can only disable notifications for the whole
> system). We propose that to disable for a table, one simply unset
> hcat.msgbus.topic.name.
> Consider tables created from 0.1 that don't have msgbus.topic.name set. On
> upgrading to 0.2, any partitions added to these tables will be accompanied by
> exceptions.
> Additionally, custom HCatOutputCommitters (such as from HCATALOG-36) that
> register multiple partitions in succession won't work, unless the exceptions
> are caught and ignored.
> Shall we switch from throwing an exception to logging an INFO message and
> suppressing the notification?
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