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| author | Shixiong Zhu <shixiong@databricks.com> | 2016-06-21 12:42:49 -0700 |
|---|---|---|
| committer | Yin Huai <yhuai@databricks.com> | 2016-06-21 12:42:49 -0700 |
| commit | c399c7f0e485dcfc6cbc343bc246b8adc3f0648c (patch) | |
| tree | 09bdd5b14c14a4e2bbd7a90f7e772d9e1a867a4b /conf | |
| parent | f4a3d45e38f18278bbdb7cc32486ded50f76d54b (diff) | |
| download | spark-c399c7f0e485dcfc6cbc343bc246b8adc3f0648c.tar.gz spark-c399c7f0e485dcfc6cbc343bc246b8adc3f0648c.tar.bz2 spark-c399c7f0e485dcfc6cbc343bc246b8adc3f0648c.zip | |
[SPARK-16002][SQL] Sleep when no new data arrives to avoid 100% CPU usage
## What changes were proposed in this pull request?
Add a configuration to allow people to set a minimum polling delay when no new data arrives (default is 10ms). This PR also cleans up some INFO logs.
## How was this patch tested?
Existing unit tests.
Author: Shixiong Zhu <shixiong@databricks.com>
Closes #13718 from zsxwing/SPARK-16002.
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