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From "David Mollitor (Jira)" <j...@apache.org>
Subject [jira] [Updated] (HIVE-22428) Remove superfluous "Failed to get database" WARN Logging in ObjectStore
Date Fri, 01 Nov 2019 14:01:00 GMT

     [ https://issues.apache.org/jira/browse/HIVE-22428?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

David Mollitor updated HIVE-22428:
----------------------------------
    Summary: Remove superfluous "Failed to get database" WARN Logging in ObjectStore  (was:
Superfluous "Failed to get database" WARN Logging in ObjectStore)

> Remove superfluous "Failed to get database" WARN Logging in ObjectStore
> -----------------------------------------------------------------------
>
>                 Key: HIVE-22428
>                 URL: https://issues.apache.org/jira/browse/HIVE-22428
>             Project: Hive
>          Issue Type: Improvement
>          Components: Standalone Metastore
>    Affects Versions: 3.2.0
>            Reporter: David Mollitor
>            Assignee: David Mollitor
>            Priority: Major
>         Attachments: HIVE-22428.1.patch
>
>
> In my testing, I get lots of logs like this:
> {code:none}
> 	Line 26319: 2019-10-28T21:09:52,134  WARN [pool-6-thread-5] metastore.ObjectStore: Failed
to get database hive.compdb, returning NoSuchObjectException
> 	Line 26327: 2019-10-28T21:09:52,135  WARN [pool-6-thread-5] metastore.ObjectStore: Failed
to get database hive.compdb, returning NoSuchObjectException
> 	Line 26504: 2019-10-28T21:09:52,600  WARN [pool-6-thread-5] metastore.ObjectStore: Failed
to get database hive.tstatsfast, returning NoSuchObjectException
> 	Line 26519: 2019-10-28T21:09:52,606  WARN [pool-6-thread-5] metastore.ObjectStore: Failed
to get database hive.tstatsfast, returning NoSuchObjectException
> 	Line 26695: 2019-10-28T21:09:52,922  WARN [pool-6-thread-5] metastore.ObjectStore: Failed
to get database hive.createDb, returning NoSuchObjectException
> 	Line 26703: 2019-10-28T21:09:52,923  WARN [pool-6-thread-5] metastore.ObjectStore: Failed
to get database hive.createDb, returning NoSuchObjectException
> 	Line 26763: 2019-10-28T21:09:52,936  WARN [pool-6-thread-5] metastore.ObjectStore: Failed
to get database hive.compdb, returning NoSuchObjectException
> 	Line 26778: 2019-10-28T21:09:52,939  WARN [pool-6-thread-5] metastore.ObjectStore: Failed
to get database hive.compdb, returning NoSuchObjectException
> 	Line 26963: 2019-10-28T21:09:53,273  WARN [pool-6-thread-5] metastore.ObjectStore: Failed
to get database hive.db1, returning NoSuchObjectException
> 	Line 26978: 2019-10-28T21:09:53,276  WARN [pool-6-thread-5] metastore.ObjectStore: Failed
to get database hive.db2, returning NoSuchObjectException
> 	Line 26986: 2019-10-28T21:09:53,277  WARN [pool-6-thread-5] metastore.ObjectStore: Failed
to get database hive.db1, returning NoSuchObjectException
> 	Line 27018: 2019-10-28T21:09:53,300  WARN [pool-6-thread-5] metastore.ObjectStore: Failed
to get database hive.db2, returning NoSuchObjectException
> {code}
> This is a superfluous log message.  It might be pretty common for a database to not exists
if, for example, a user fat-fingers the name of the database.  The code also has the bad habit
of log-and-throw.  Just log or throw, not both.
> Since I'm looking at this class, touch up some of the other logging as well.



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