hvanhovell commented on code in PR #47815:
URL: https://github.com/apache/spark/pull/47815#discussion_r1723425528
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sql/core/src/main/scala/org/apache/spark/sql/SparkSession.scala:
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@@ -794,6 +795,108 @@ class SparkSession private(
}
}
+
+ /**
+ * Add a tag to be assigned to all the operations started by this thread in
this session.
+ *
+ * Often, a unit of execution in an application consists of multiple Spark
executions.
+ * Application programmers can use this method to group all those jobs
together and give a group
+ * tag. The application can use
`org.apache.spark.sql.SparkSession.interruptTag` to cancel all
+ * running executions with this tag. For example:
+ * {{{
+ * // In the main thread:
+ * spark.addTag("myjobs")
+ * spark.range(10).map(i => { Thread.sleep(10); i }).collect()
+ *
+ * // In a separate thread:
+ * spark.interruptTag("myjobs")
+ * }}}
+ *
+ * There may be multiple tags present at the same time, so different parts
of application may
+ * use different tags to perform cancellation at different levels of
granularity.
+ *
+ * @param tag
+ * The tag to be added. Cannot contain ',' (comma) character or be an
empty string.
+ *
+ * @since 4.0.0
+ */
+ def addTag(tag: String): Unit = sparkContext.addJobTag(tag)
Review Comment:
I think we also need to make sure the tag is unique to this session.
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