> On June 3, 2016, 12:42 a.m., Sergey Shelukhin wrote:
> > metastore/src/java/org/apache/hadoop/hive/metastore/HiveMetaStore.java, 
> > line 2357
> > <https://reviews.apache.org/r/48159/diff/2/?file=1405580#file1405580line2357>
> >
> >     cleanup code needs to be updated below. As far as I can tell, when this 
> > throws there can be completed operations yet to be added to the set, unless 
> > they are decisively terminated or allowed to finish
> 
> Rajesh Balamohan wrote:
>     Same approach is followed as in earlier case (where it was all or none 
> gets updated).  Plz let me know if i am missing anything here.
> 
> Sergey Shelukhin wrote:
>     addedPartitions set is used to determine which directories to delete on 
> clean up.
>     In the patch, the access to addedPartitions itself doesn't appear to be 
> thread safe. If it was, there's a question of tasks that are somewhere 
> between creating the directory and adding to the map.
>     Actually, I don't think addedPartitions.put inside the callable is thread 
> safe.

Agreed. Fixed this in latest patch. In corner case, it would end up invoking 
deleteDir which isn't created yet, which is not harmful.


- Rajesh


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On June 3, 2016, 3:03 a.m., Rajesh Balamohan wrote:
> 
> -----------------------------------------------------------
> This is an automatically generated e-mail. To reply, visit:
> https://reviews.apache.org/r/48159/
> -----------------------------------------------------------
> 
> (Updated June 3, 2016, 3:03 a.m.)
> 
> 
> Review request for hive and Ashutosh Chauhan.
> 
> 
> Bugs: HIVE-13901
>     https://issues.apache.org/jira/browse/HIVE-13901
> 
> 
> Repository: hive-git
> 
> 
> Description
> -------
> 
> Depending on FS, creating external tables & adding partitions can be 
> expensive (e.g msck which adds all partitions).
> 
> 
> Diffs
> -----
> 
>   common/src/java/org/apache/hadoop/hive/conf/HiveConf.java 9cc8fbe 
>   metastore/src/java/org/apache/hadoop/hive/metastore/HiveMetaStore.java 
> 94dd72e 
> 
> Diff: https://reviews.apache.org/r/48159/diff/
> 
> 
> Testing
> -------
> 
> 
> Thanks,
> 
> Rajesh Balamohan
> 
>

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