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| author | Wenchen Fan <wenchen@databricks.com> | 2016-04-28 21:57:58 -0700 |
|---|---|---|
| committer | Reynold Xin <rxin@databricks.com> | 2016-04-28 21:57:58 -0700 |
| commit | 6f9a18fe311925056cce83a44f187f122b6591cb (patch) | |
| tree | ffbbd73a0399c6aad5ef6871e2e264c7ac9b3336 /sql/hive/compatibility/src/test | |
| parent | 9c7c42bc6a35679cfffcdfb6feb26af834fec2e1 (diff) | |
| download | spark-6f9a18fe311925056cce83a44f187f122b6591cb.tar.gz spark-6f9a18fe311925056cce83a44f187f122b6591cb.tar.bz2 spark-6f9a18fe311925056cce83a44f187f122b6591cb.zip | |
[HOTFIX][CORE] fix a concurrence issue in NewAccumulator
## What changes were proposed in this pull request?
`AccumulatorContext` is not thread-safe, that's why all of its methods are synchronized. However, there is one exception: the `AccumulatorContext.originals`. `NewAccumulator` use it to check if it's registered, which is wrong as it's not synchronized.
This PR mark `AccumulatorContext.originals` as `private` and now all access to `AccumulatorContext` is synchronized.
## How was this patch tested?
I verified it locally. To be safe, we can let jenkins test it many times to make sure this problem is gone.
Author: Wenchen Fan <wenchen@databricks.com>
Closes #12773 from cloud-fan/debug.
Diffstat (limited to 'sql/hive/compatibility/src/test')
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