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author | uncleGen <hustyugm@gmail.com> | 2017-03-09 11:07:31 -0800 |
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committer | Shixiong Zhu <shixiong@databricks.com> | 2017-03-09 11:07:31 -0800 |
commit | 30b18e69361746b4d656474374d8b486bb48a19e (patch) | |
tree | 14448ffb7e2e507892d85bba321a5b01d39ef94c /python | |
parent | 40da4d181d648308de85fdcabc5c098ee861949a (diff) | |
download | spark-30b18e69361746b4d656474374d8b486bb48a19e.tar.gz spark-30b18e69361746b4d656474374d8b486bb48a19e.tar.bz2 spark-30b18e69361746b4d656474374d8b486bb48a19e.zip |
[SPARK-19861][SS] watermark should not be a negative time.
## What changes were proposed in this pull request?
`watermark` should not be negative. This behavior is invalid, check it before real run.
## How was this patch tested?
add new unit test.
Author: uncleGen <hustyugm@gmail.com>
Author: dylon <hustyugm@gmail.com>
Closes #17202 from uncleGen/SPARK-19861.
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