Re: Review Request 43651: HIVE-13075 | Metastore shuts down when no delegation token is found in ZooKeeper

[Piotr Wikie?]

-----------------------------------------------------------
This is an automatically generated e-mail. To reply, visit:
https://reviews.apache.org/r/43651/
-----------------------------------------------------------

(Updated Lut 17, 2016, 3:27 po południu)


Review request for hive.


Repository: hive-git


Description
-------

When you have multiple metastore instances storing tokens in ZooKeeper, there 
could be a race condition in ExpiredTokenRemover causing one metastore to 
remove tokens already removed by another instance. This is a simple solution 
for that problem. `null` is perfectly fine as a return value in 
`ZooKeeperTokenStore::getToken`.


Diffs (updated)
-----

  
shims/common/src/main/java/org/apache/hadoop/hive/thrift/ZooKeeperTokenStore.java
 745e467 

Diff: https://reviews.apache.org/r/43651/diff/


Testing
-------


Thanks,

Piotr Wikie?