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https://issues.apache.org/jira/browse/AMBARI-22322?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Doroszlai, Attila updated AMBARI-22322:
---------------------------------------
Attachment: AMBARI-22322.patch
> Problems with alert definitions' support for multiple services
> --------------------------------------------------------------
>
> Key: AMBARI-22322
> URL: https://issues.apache.org/jira/browse/AMBARI-22322
> Project: Ambari
> Issue Type: Bug
> Components: ambari-server
> Affects Versions: 3.0.0
> Reporter: Doroszlai, Attila
> Assignee: Doroszlai, Attila
> Priority: Critical
> Fix For: 3.0.0
>
> Attachments: AMBARI-22322.patch
>
>
> When creating a service the following error is encountered due to service
> name vs. service type mismatch:
> {noformat}
> ERROR [pool-3-thread-1] AlertServiceStateListener:170 - Unable to populate
> alert definitions from the database during installation of ZK1
> org.apache.ambari.server.AmbariException: Unable to create a default alert
> group for unknown service ZOOKEEPER in cluster TEST
> at
> org.apache.ambari.server.orm.dao.AlertDispatchDAO.createDefaultGroup(AlertDispatchDAO.java:464)
> at
> org.apache.ambari.server.orm.AmbariJpaLocalTxnInterceptor.invoke(AmbariJpaLocalTxnInterceptor.java:118)
> at
> org.apache.ambari.server.orm.dao.AlertDefinitionDAO.create(AlertDefinitionDAO.java:345)
> at
> org.apache.ambari.server.orm.AmbariJpaLocalTxnInterceptor.invoke(AmbariJpaLocalTxnInterceptor.java:128)
> at
> org.apache.ambari.server.events.listeners.alerts.AlertServiceStateListener.onAmbariEvent(AlertServiceStateListener.java:164)
> {noformat}
> When adding the second service for the same service type, definitions are
> again attempted to be created, resulting in unique constraint violation:
> {noformat}
> ...
> at
> org.apache.ambari.server.orm.dao.AlertDefinitionDAO.create(AlertDefinitionDAO.java:337)
> at
> org.apache.ambari.server.orm.AmbariJpaLocalTxnInterceptor.invoke(AmbariJpaLocalTxnInterceptor.java:128)
> at
> org.apache.ambari.server.events.listeners.alerts.AlertServiceStateListener.onAmbariEvent(AlertServiceStateListener.java:164)
> ...
> Caused by: org.postgresql.util.PSQLException: ERROR: duplicate key value
> violates unique constraint "uni_alert_def_name"
> {noformat}
> Upon service removal, alert definitions are not deleted, because lookup is by
> service name, not service type. Definitions should be retained as long as
> there are any services of the given type.
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