GitHub user tdas opened a pull request: https://github.com/apache/spark/pull/15885
[SPARK-18440][Structured Streaming] Pass correct query execution to FileFormatWriter ## What changes were proposed in this pull request? SPARK-18012 refactored the file write path in FileStreamSink using FileFormatWriter which always uses the default non-streaming QueryExecution to perform the writes. This is wrong for FileStreamSink, because the streaming QueryExecution (i.e. IncrementalExecution) should be used for correctly incrementalizing aggregation. The addition of watermarks in SPARK-18124, file stream sink should logically supports aggregation + watermark + append mode. But actually it fails with ``` 16:23:07.389 ERROR org.apache.spark.sql.execution.streaming.StreamExecution: Query query-0 terminated with error java.lang.AssertionError: assertion failed: No plan for EventTimeWatermark timestamp#7: timestamp, interval 10 seconds +- LocalRelation [timestamp#7] at scala.Predef$.assert(Predef.scala:170) at org.apache.spark.sql.catalyst.planning.QueryPlanner.plan(QueryPlanner.scala:92) at org.apache.spark.sql.catalyst.planning.QueryPlanner$$anonfun$2$$anonfun$apply$2.apply(QueryPlanner.scala:77) at org.apache.spark.sql.catalyst.planning.QueryPlanner$$anonfun$2$$anonfun$apply$2.apply(QueryPlanner.scala:74) at scala.collection.TraversableOnce$$anonfun$foldLeft$1.apply(TraversableOnce.scala:157) at scala.collection.TraversableOnce$$anonfun$foldLeft$1.apply(TraversableOnce.scala:157) at scala.collection.Iterator$class.foreach(Iterator.scala:893) at scala.collection.AbstractIterator.foreach(Iterator.scala:1336) at scala.collection.TraversableOnce$class.foldLeft(TraversableOnce.scala:157) at scala.collection.AbstractIterator.foldLeft(Iterator.scala:1336) at org.apache.spark.sql.catalyst.planning.QueryPlanner$$anonfun$2.apply(QueryPlanner.scala:74) at org.apache.spark.sql.catalyst.planning.QueryPlanner$$anonfun$2.apply(QueryPlanner.scala:66) at scala.collection.Iterator$$anon$12.nextCur(Iterator.scala:434) at scala.collection.Iterator$$anon$12.hasNext(Iterator.scala:440) at org.apache.spark.sql.catalyst.planning.QueryPlanner.plan(QueryPlanner.scala:92) at org.apache.spark.sql.catalyst.planning.QueryPlanner$$anonfun$2$$anonfun$apply$2.apply(QueryPlanner.scala:77) at org.apache.spark.sql.catalyst.planning.QueryPlanner$$anonfun$2$$anonfun$apply$2.apply(QueryPlanner.scala:74) ``` This PR fixes it by passing the correct query execution. ## How was this patch tested? New unit test You can merge this pull request into a Git repository by running: $ git pull https://github.com/tdas/spark SPARK-18440 Alternatively you can review and apply these changes as the patch at: https://github.com/apache/spark/pull/15885.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 #15885 ---- commit 337ef01d06237b613d04011795b73c564b4b3e54 Author: Tathagata Das <tathagata.das1...@gmail.com> Date: 2016-11-15T00:48:47Z Pass correct query execution to FileFormatWriter ---- --- If your project is set up for it, you can reply to this email and have your reply appear on GitHub as well. If your project does not have this feature enabled and wishes so, or if the feature is enabled but not working, please contact infrastructure at infrastruct...@apache.org or file a JIRA ticket with INFRA. --- --------------------------------------------------------------------- To unsubscribe, e-mail: reviews-unsubscr...@spark.apache.org For additional commands, e-mail: reviews-h...@spark.apache.org