tdas commented on a change in pull request #26771: [SPARK-30143][SS] Add a
timeout on stopping a streaming query
URL: https://github.com/apache/spark/pull/26771#discussion_r356479875
##########
File path:
sql/core/src/main/scala/org/apache/spark/sql/streaming/DataStreamWriter.scala
##########
@@ -240,8 +241,16 @@ final class DataStreamWriter[T] private[sql](ds:
Dataset[T]) {
* path as new data arrives. The returned [[StreamingQuery]] object can be
used to interact with
* the stream.
*
+ * @throws TimeoutException If another run of the same streaming query (a
streaming query sharing
+ * the same checkpoint location) is already active
on the same Spark
+ * cluster, the SQL configuration
+ * `spark.sql.streaming.stopActiveRunOnRestart` is
enabled, and the
+ * active run cannot be stopped within the timeout
controlled by the
+ * SQL configuration, we throw a TimeoutException.
Review comment:
nit: this is hard to read. You can flip and make it a bulleted list.
```
A timeout exception will be thrown if the following conditions are met:
- Another run of the same ...
- The SQL configuration. ...
- This active run cannot be stopped without ....
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