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| author | zsxwing <zsxwing@gmail.com> | 2014-03-21 16:07:22 -0700 |
|---|---|---|
| committer | Patrick Wendell <pwendell@gmail.com> | 2014-03-21 16:08:18 -0700 |
| commit | 2c0aa22e2e26ae35b7d4caa529bc6520e362cc3c (patch) | |
| tree | ce9fa01252f5eb87475ea79a5b5368a8f6f0df4f /sql | |
| parent | 7e17fe69f9c3dc4cac024ea483f5d5f34ee06203 (diff) | |
| download | spark-2c0aa22e2e26ae35b7d4caa529bc6520e362cc3c.tar.gz spark-2c0aa22e2e26ae35b7d4caa529bc6520e362cc3c.tar.bz2 spark-2c0aa22e2e26ae35b7d4caa529bc6520e362cc3c.zip | |
SPARK-1279: Fix improper use of SimpleDateFormat
`SimpleDateFormat` is not thread-safe. Some places use the same SimpleDateFormat object without safeguard in the multiple threads. It will cause that the Web UI displays improper date.
This PR creates a new `SimpleDateFormat` every time when it's necessary. Another solution is using `ThreadLocal` to store a `SimpleDateFormat` in each thread. If this PR impacts the performance, I can change to the latter one.
Author: zsxwing <zsxwing@gmail.com>
Closes #179 from zsxwing/SPARK-1278 and squashes the following commits:
21fabd3 [zsxwing] SPARK-1278: Fix improper use of SimpleDateFormat
Diffstat (limited to 'sql')
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