[jira] [Created] (HIVE-8684) Metastore caching too aggresive for partition location change

["Philipp Schuegerl (JIRA)" <ji...@apache.org>]

Philipp Schuegerl created HIVE-8684:
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             Summary: Metastore caching too aggresive for partition location change
                 Key: HIVE-8684
                 URL: https://issues.apache.org/jira/browse/HIVE-8684
             Project: Hive
          Issue Type: Bug
          Components: Metastore
    Affects Versions: 0.12.0
            Reporter: Philipp Schuegerl


In a setup in which multiple metastores talk to a single MySQL DB, a partition location gets cached by the metastore although caching is turned off ("datanucleus.cache.level2" is set to "false").

Reproduction steps:
* Create a table <table> and partition <partition> with location X
* Connect to hive with metastore A
* Call ALTER TABLE <table> PARTITION (<partition>) SET LOCATION Y ... DESC FORMATTED <table> PARTITION (<partition>) will show location Y 
* Connect to hive with metastore B
* DESC FORMATTED <table> PARTITION (<partition>) will still show location X

A workaround for this problem is to DROP the partition and recreate it (which correctly propagates to all metastores). Only the SET statement is affected by the bug.



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