GitHub user tdas opened a pull request:
https://github.com/apache/spark/pull/17954
[SPARK-20714] [SS] Fix match error when watermark is set with timeout = no
timeout / processing timeout
## What changes were proposed in this pull request?
When watermark is set, and timeout conf is NoTimeout or
ProcessingTimeTimeout (both do not need the watermark), the query fails at
runtime with the following exception.
```
MatchException:
Some(org.apache.spark.sql.catalyst.expressions.GeneratedClass$SpecificPredicate@1a9b798e)
(of class scala.Some)
org.apache.spark.sql.execution.streaming.FlatMapGroupsWithStateExec$$anonfun$doExecute$1.apply(FlatMapGroupsWithStateExec.scala:120)
org.apache.spark.sql.execution.streaming.FlatMapGroupsWithStateExec$$anonfun$doExecute$1.apply(FlatMapGroupsWithStateExec.scala:116)
org.apache.spark.sql.execution.streaming.state.package$StateStoreOps$$anonfun$1.apply(package.scala:70)
org.apache.spark.sql.execution.streaming.state.package$StateStoreOps$$anonfun$1.apply(package.scala:65)
org.apache.spark.sql.execution.streaming.state.StateStoreRDD.compute(StateStoreRDD.scala:64)
```
The match did not correctly handle cases where watermark was defined by the
timeout was different from EventTimeTimeout.
## How was this patch tested?
New unit tests.
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/tdas/spark SPARK-20714
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/17954.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 #17954
----
commit 53a7491aa39b1b6b192b9b6b63acfb272e6aa3c1
Author: Tathagata Das <[email protected]>
Date: 2017-05-11T22:21:00Z
Fixed case matching
----
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