GitHub user cloud-fan opened a pull request:
https://github.com/apache/spark/pull/12811
[SPARK-15033][SQL] fix a flaky test in CachedTableSuite
## What changes were proposed in this pull request?
This is caused by https://github.com/apache/spark/pull/12776, which removes
the `synchronized` from all methods in `AccumulatorContext`.
However, a test in `CachedTableSuite` synchronize on `AccumulatorContext`
and expecting no one else can change it, which is not true anymore.
This PR update that test to not require to lock on `AccumulatorContext`.
## How was this patch tested?
N/A
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/cloud-fan/spark flaky
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/12811.patch
To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:
This closes #12811
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commit 1a5234e1932b015ecd18106b1e33dd712bf7acb4
Author: Wenchen Fan <[email protected]>
Date: 2016-04-30T08:03:47Z
fix a flaky test in CachedTableSuite
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