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Posted to reviews@spark.apache.org by GitBox <gi...@apache.org> on 2020/04/28 13:29:32 UTC

[GitHub] [spark] WeichenXu123 opened a new pull request #28395: [SPARK-31549][PYSPARK] Add a develop API invoking collect on Python RDD with user-specified job group

WeichenXu123 opened a new pull request #28395:
URL: https://github.com/apache/spark/pull/28395


   ### What changes were proposed in this pull request?
   I add a new API in pyspark RDD class:
   
   def collectWithJobGroup(self, groupId, description, interruptOnCancel=False)
   
   This API do the same thing with `rdd.collect`, but it can specify the job group when do collect.
   The purpose of adding this API is, if we use:
   
   ```
   sc.setJobGroup("group-id...")
   rdd.collect()
   ```
   The `setJobGroup` API in pyspark won't work correctly. This related to a bug discussed in 
   https://issues.apache.org/jira/browse/SPARK-31549
   
   ### Why are the changes needed?
   Fix bug.
   
   
   ### Does this PR introduce any user-facing change?
   A develop API in pyspark: `pyspark.RDD. collectWithJobGroup`
   
   
   ### How was this patch tested?
   Unit test.
   


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[GitHub] [spark] HyukjinKwon commented on pull request #28395: [SPARK-31549][PYSPARK] Add a develop API invoking collect on Python RDD with user-specified job group

Posted by GitBox <gi...@apache.org>.
HyukjinKwon commented on pull request #28395:
URL: https://github.com/apache/spark/pull/28395#issuecomment-622199424


   Merged to master and branch-3.0. Thanks @mengxr, @WeichenXu123 and @dongjoon-hyun.


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[GitHub] [spark] HyukjinKwon commented on a change in pull request #28395: [SPARK-31549][PYSPARK] Add a develop API invoking collect on Python RDD with user-specified job group

Posted by GitBox <gi...@apache.org>.
HyukjinKwon commented on a change in pull request #28395:
URL: https://github.com/apache/spark/pull/28395#discussion_r417002009



##########
File path: python/pyspark/tests/test_rdd.py
##########
@@ -814,6 +814,63 @@ def assert_request_contents(exec_reqs, task_reqs):
         rddWithoutRp = self.sc.parallelize(range(10))
         self.assertEqual(rddWithoutRp.getResourceProfile(), None)
 
+    def test_collect_with_job_group(self):

Review comment:
       Shall we mimic the test case at https://github.com/apache/spark/pull/24898/files#diff-896aaa74767987ed14f1ef9fcb324cefR84?




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[GitHub] [spark] SparkQA commented on pull request #28395: [SPARK-31549][PYSPARK] Add a develop API invoking collect on Python RDD with user-specified job group

Posted by GitBox <gi...@apache.org>.
SparkQA commented on pull request #28395:
URL: https://github.com/apache/spark/pull/28395#issuecomment-621138777


   **[Test build #122059 has started](https://amplab.cs.berkeley.edu/jenkins/job/SparkPullRequestBuilder/122059/testReport)** for PR 28395 at commit [`481bba6`](https://github.com/apache/spark/commit/481bba62ce62a13f23ce153e54e8a5f56f6059c2).


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[GitHub] [spark] dongjoon-hyun edited a comment on pull request #28395: [SPARK-31549][PYSPARK] Add a develop API invoking collect on Python RDD with user-specified job group

Posted by GitBox <gi...@apache.org>.
dongjoon-hyun edited a comment on pull request #28395:
URL: https://github.com/apache/spark/pull/28395#issuecomment-622229256


   Thank you. The follow-up looks good. BTW, FYI, `branch-3.0` UT has been broken by another commit.


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[GitHub] [spark] dongjoon-hyun commented on pull request #28395: [SPARK-31549][PYSPARK] Add a develop API invoking collect on Python RDD with user-specified job group

Posted by GitBox <gi...@apache.org>.
dongjoon-hyun commented on pull request #28395:
URL: https://github.com/apache/spark/pull/28395#issuecomment-622227189


   Thanks!


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Posted by GitBox <gi...@apache.org>.
SparkQA commented on pull request #28395:
URL: https://github.com/apache/spark/pull/28395#issuecomment-620614897


   **[Test build #121999 has started](https://amplab.cs.berkeley.edu/jenkins/job/SparkPullRequestBuilder/121999/testReport)** for PR 28395 at commit [`1ead01d`](https://github.com/apache/spark/commit/1ead01db37e214be60fef8f9c1056661e24ddd15).


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[GitHub] [spark] HyukjinKwon commented on pull request #28395: [SPARK-31549][PYSPARK] Add a develop API invoking collect on Python RDD with user-specified job group

Posted by GitBox <gi...@apache.org>.
HyukjinKwon commented on pull request #28395:
URL: https://github.com/apache/spark/pull/28395#issuecomment-622227485


   Ah, it's branch-3.0 only. Let me just hotfix in branch-3.0 only.


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[GitHub] [spark] HyukjinKwon commented on a change in pull request #28395: [SPARK-31549][PYSPARK] Add a develop API invoking collect on Python RDD with user-specified job group

Posted by GitBox <gi...@apache.org>.
HyukjinKwon commented on a change in pull request #28395:
URL: https://github.com/apache/spark/pull/28395#discussion_r417002980



##########
File path: core/src/main/scala/org/apache/spark/api/python/PythonRDD.scala
##########
@@ -168,6 +168,23 @@ private[spark] object PythonRDD extends Logging {
     serveIterator(rdd.collect().iterator, s"serve RDD ${rdd.id}")
   }
 
+  /**
+   * A helper function to collect an RDD as an iterator, then serve it via socket.
+   * This method is similar with `PythonRDD.collectAndServe`, but user can specify job group id,
+   * job description, and interruptOnCancel option.
+   *
+   * Note: This method are temporary, might be removed in future.

Review comment:
       We can use Unstable mark too.

##########
File path: core/src/main/scala/org/apache/spark/api/python/PythonRDD.scala
##########
@@ -168,6 +168,23 @@ private[spark] object PythonRDD extends Logging {
     serveIterator(rdd.collect().iterator, s"serve RDD ${rdd.id}")
   }
 
+  /**
+   * A helper function to collect an RDD as an iterator, then serve it via socket.
+   * This method is similar with `PythonRDD.collectAndServe`, but user can specify job group id,
+   * job description, and interruptOnCancel option.
+   *
+   * Note: This method are temporary, might be removed in future.

Review comment:
       We can use Unstable mark instead.




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[GitHub] [spark] HyukjinKwon commented on a change in pull request #28395: [SPARK-31549][PYSPARK] Add a develop API invoking collect on Python RDD with user-specified job group

Posted by GitBox <gi...@apache.org>.
HyukjinKwon commented on a change in pull request #28395:
URL: https://github.com/apache/spark/pull/28395#discussion_r417002980



##########
File path: core/src/main/scala/org/apache/spark/api/python/PythonRDD.scala
##########
@@ -168,6 +168,23 @@ private[spark] object PythonRDD extends Logging {
     serveIterator(rdd.collect().iterator, s"serve RDD ${rdd.id}")
   }
 
+  /**
+   * A helper function to collect an RDD as an iterator, then serve it via socket.
+   * This method is similar with `PythonRDD.collectAndServe`, but user can specify job group id,
+   * job description, and interruptOnCancel option.
+   *
+   * Note: This method are temporary, might be removed in future.

Review comment:
       We can use Unstable mark as well.

##########
File path: core/src/main/scala/org/apache/spark/api/python/PythonRDD.scala
##########
@@ -168,6 +168,23 @@ private[spark] object PythonRDD extends Logging {
     serveIterator(rdd.collect().iterator, s"serve RDD ${rdd.id}")
   }
 
+  /**
+   * A helper function to collect an RDD as an iterator, then serve it via socket.
+   * This method is similar with `PythonRDD.collectAndServe`, but user can specify job group id,
+   * job description, and interruptOnCancel option.
+   *
+   * Note: This method are temporary, might be removed in future.

Review comment:
       We can use Unstable mark instead as well.




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Posted by GitBox <gi...@apache.org>.
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URL: https://github.com/apache/spark/pull/28395#issuecomment-620936871


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[GitHub] [spark] HyukjinKwon commented on pull request #28395: [SPARK-31549][PYSPARK] Add a develop API invoking collect on Python RDD with user-specified job group

Posted by GitBox <gi...@apache.org>.
HyukjinKwon commented on pull request #28395:
URL: https://github.com/apache/spark/pull/28395#issuecomment-622231583


   Ah, it was already commented at https://github.com/apache/spark/pull/28194 :-)


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   Merged build finished. Test FAILed.


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[GitHub] [spark] HyukjinKwon commented on pull request #28395: [SPARK-31549][PYSPARK] Add a develop API invoking collect on Python RDD with user-specified job group

Posted by GitBox <gi...@apache.org>.
HyukjinKwon commented on pull request #28395:
URL: https://github.com/apache/spark/pull/28395#issuecomment-620979311


   retest this please


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[GitHub] [spark] dongjoon-hyun commented on a change in pull request #28395: [SPARK-31549][PYSPARK] Add a develop API invoking collect on Python RDD with user-specified job group

Posted by GitBox <gi...@apache.org>.
dongjoon-hyun commented on a change in pull request #28395:
URL: https://github.com/apache/spark/pull/28395#discussion_r417511976



##########
File path: python/pyspark/rdd.py
##########
@@ -877,6 +877,19 @@ def collect(self):
             sock_info = self.ctx._jvm.PythonRDD.collectAndServe(self._jrdd.rdd())
         return list(_load_from_socket(sock_info, self._jrdd_deserializer))
 
+    def collectWithJobGroup(self, groupId, description, interruptOnCancel=False):
+        """
+        .. note:: Experimental
+
+        When collect rdd, use this method to specify job group.
+
+        .. versionadded:: 3.0.0

Review comment:
       If then, it would be great if we have @HyukjinKwon's [background explanation](https://github.com/apache/spark/pull/28395#pullrequestreview-402300959) on the PR description.




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[GitHub] [spark] dongjoon-hyun commented on a change in pull request #28395: [SPARK-31549][PYSPARK] Add a develop API invoking collect on Python RDD with user-specified job group

Posted by GitBox <gi...@apache.org>.
dongjoon-hyun commented on a change in pull request #28395:
URL: https://github.com/apache/spark/pull/28395#discussion_r417511976



##########
File path: python/pyspark/rdd.py
##########
@@ -877,6 +877,19 @@ def collect(self):
             sock_info = self.ctx._jvm.PythonRDD.collectAndServe(self._jrdd.rdd())
         return list(_load_from_socket(sock_info, self._jrdd_deserializer))
 
+    def collectWithJobGroup(self, groupId, description, interruptOnCancel=False):
+        """
+        .. note:: Experimental
+
+        When collect rdd, use this method to specify job group.
+
+        .. versionadded:: 3.0.0

Review comment:
       It would be great if we have @HyukjinKwon [explanation](https://github.com/apache/spark/pull/28395#pullrequestreview-402300959) on the PR description.




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[GitHub] [spark] HyukjinKwon commented on a change in pull request #28395: [SPARK-31549][PYSPARK] Add a develop API invoking collect on Python RDD with user-specified job group

Posted by GitBox <gi...@apache.org>.
HyukjinKwon commented on a change in pull request #28395:
URL: https://github.com/apache/spark/pull/28395#discussion_r417672569



##########
File path: python/pyspark/rdd.py
##########
@@ -877,6 +877,19 @@ def collect(self):
             sock_info = self.ctx._jvm.PythonRDD.collectAndServe(self._jrdd.rdd())
         return list(_load_from_socket(sock_info, self._jrdd_deserializer))
 
+    def collectWithJobGroup(self, groupId, description, interruptOnCancel=False):
+        """
+        .. note:: Experimental
+
+        When collect rdd, use this method to specify job group.
+
+        .. versionadded:: 3.0.0

Review comment:
       I don't think we will ignore the existing definitions of API stability tags. Might be best to stick to what's documented there in tags ...
   
   Of course we should take it considering the ammended semver but I think it's a rather rubric to consider.
   
   I kind of strongly think we should deprecate/remove it to stick to the standard approach for this one specifically later once we enable the pin-thread mode by default. I also agree with having this APIs as a step to migrate meanwhile.




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[GitHub] [spark] dongjoon-hyun commented on pull request #28395: [SPARK-31549][PYSPARK] Add a develop API invoking collect on Python RDD with user-specified job group

Posted by GitBox <gi...@apache.org>.
dongjoon-hyun commented on pull request #28395:
URL: https://github.com/apache/spark/pull/28395#issuecomment-622225266


   Hi, @HyukjinKwon .
   Could you fix Python linter error?
   ```
   ./python/pyspark/tests/test_rdd.py:787:5: E303 too many blank lines (2)
   ```


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[GitHub] [spark] HyukjinKwon commented on a change in pull request #28395: [SPARK-31549][PYSPARK] Add a develop API invoking collect on Python RDD with user-specified job group

Posted by GitBox <gi...@apache.org>.
HyukjinKwon commented on a change in pull request #28395:
URL: https://github.com/apache/spark/pull/28395#discussion_r417672569



##########
File path: python/pyspark/rdd.py
##########
@@ -877,6 +877,19 @@ def collect(self):
             sock_info = self.ctx._jvm.PythonRDD.collectAndServe(self._jrdd.rdd())
         return list(_load_from_socket(sock_info, self._jrdd_deserializer))
 
+    def collectWithJobGroup(self, groupId, description, interruptOnCancel=False):
+        """
+        .. note:: Experimental
+
+        When collect rdd, use this method to specify job group.
+
+        .. versionadded:: 3.0.0

Review comment:
       I dont think we will ignore the existing definitions of API stability tags. Might be best to stick to what's documented there in tags ...
   
   Of course we should take it considering the ammended semver but I think it's a rather rubric to consider when we break.
   
   I kind of strongly think we should deprecate/remove it to stick to the standard approach for this one specifically later when we're able. I also agree with having this APIs as a step to migrate meanwhile.




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[GitHub] [spark] dongjoon-hyun edited a comment on pull request #28395: [SPARK-31549][PYSPARK] Add a develop API invoking collect on Python RDD with user-specified job group

Posted by GitBox <gi...@apache.org>.
dongjoon-hyun edited a comment on pull request #28395:
URL: https://github.com/apache/spark/pull/28395#issuecomment-622225266


   Hi, @HyukjinKwon .
   Could you fix Python linter error on `branch-3.0`?
   ```
   ./python/pyspark/tests/test_rdd.py:787:5: E303 too many blank lines (2)
   ```


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[GitHub] [spark] HyukjinKwon commented on a change in pull request #28395: [SPARK-31549][PYSPARK] Add a develop API invoking collect on Python RDD with user-specified job group

Posted by GitBox <gi...@apache.org>.
HyukjinKwon commented on a change in pull request #28395:
URL: https://github.com/apache/spark/pull/28395#discussion_r417001144



##########
File path: python/pyspark/rdd.py
##########
@@ -877,6 +877,17 @@ def collect(self):
             sock_info = self.ctx._jvm.PythonRDD.collectAndServe(self._jrdd.rdd())
         return list(_load_from_socket(sock_info, self._jrdd_deserializer))
 
+    def collectWithJobGroup(self, groupId, description, interruptOnCancel=False):
+        """
+        When collect rdd, use this method to specify job group.
+
+        .. note:: This method are temporary, might be removed in future.

Review comment:
       Let's also add the `versionadded` or `@since`.




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[GitHub] [spark] mengxr commented on a change in pull request #28395: [SPARK-31549][PYSPARK] Add a develop API invoking collect on Python RDD with user-specified job group

Posted by GitBox <gi...@apache.org>.
mengxr commented on a change in pull request #28395:
URL: https://github.com/apache/spark/pull/28395#discussion_r416885587



##########
File path: core/src/main/scala/org/apache/spark/api/python/PythonRDD.scala
##########
@@ -168,6 +168,23 @@ private[spark] object PythonRDD extends Logging {
     serveIterator(rdd.collect().iterator, s"serve RDD ${rdd.id}")
   }
 
+  /**
+   * A helper function to collect an RDD as an iterator, then serve it via socket.
+   * This method is similar with `PythonRDD.collectAndServe`, but user can specify job group id,
+   * job description, and interruptOnCancel option.
+   *
+   * Note: This method are temporary, might be removed in future.

Review comment:
       Could you use Experimental note?




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[GitHub] [spark] HyukjinKwon commented on pull request #28395: [SPARK-31549][PYSPARK] Add a develop API invoking collect on Python RDD with user-specified job group

Posted by GitBox <gi...@apache.org>.
HyukjinKwon commented on pull request #28395:
URL: https://github.com/apache/spark/pull/28395#issuecomment-622226989


   Hm, weird. It was a clean backport. Let me make a fix in the master through branch-3.0 to reduce the diff. Seems it's legitimate anyway.


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[GitHub] [spark] dongjoon-hyun commented on a change in pull request #28395: [SPARK-31549][PYSPARK] Add a develop API invoking collect on Python RDD with user-specified job group

Posted by GitBox <gi...@apache.org>.
dongjoon-hyun commented on a change in pull request #28395:
URL: https://github.com/apache/spark/pull/28395#discussion_r417512584



##########
File path: python/pyspark/rdd.py
##########
@@ -877,6 +877,19 @@ def collect(self):
             sock_info = self.ctx._jvm.PythonRDD.collectAndServe(self._jrdd.rdd())
         return list(_load_from_socket(sock_info, self._jrdd_deserializer))
 
+    def collectWithJobGroup(self, groupId, description, interruptOnCancel=False):
+        """
+        .. note:: Experimental
+
+        When collect rdd, use this method to specify job group.
+
+        .. versionadded:: 3.0.0

Review comment:
       BTW, we cannot remove this API forever. cc @marmbrus 
   > I will target to deprecate this API in Spark 3.1.




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[GitHub] [spark] HyukjinKwon commented on pull request #28395: [SPARK-31549][PYSPARK] Add a develop API invoking collect on Python RDD with user-specified job group

Posted by GitBox <gi...@apache.org>.
HyukjinKwon commented on pull request #28395:
URL: https://github.com/apache/spark/pull/28395#issuecomment-621230128


   @WeichenXu123 the test failure seems legitimate.


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[GitHub] [spark] dongjoon-hyun commented on a change in pull request #28395: [SPARK-31549][PYSPARK] Add a develop API invoking collect on Python RDD with user-specified job group

Posted by GitBox <gi...@apache.org>.
dongjoon-hyun commented on a change in pull request #28395:
URL: https://github.com/apache/spark/pull/28395#discussion_r417512584



##########
File path: python/pyspark/rdd.py
##########
@@ -877,6 +877,19 @@ def collect(self):
             sock_info = self.ctx._jvm.PythonRDD.collectAndServe(self._jrdd.rdd())
         return list(_load_from_socket(sock_info, self._jrdd_deserializer))
 
+    def collectWithJobGroup(self, groupId, description, interruptOnCancel=False):
+        """
+        .. note:: Experimental
+
+        When collect rdd, use this method to specify job group.
+
+        .. versionadded:: 3.0.0

Review comment:
       BTW, we can remove this API since this is Experimental? cc @marmbrus 
   > I will target to deprecate this API in Spark 3.1.




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[GitHub] [spark] HyukjinKwon commented on a change in pull request #28395: [SPARK-31549][PYSPARK] Add a develop API invoking collect on Python RDD with user-specified job group

Posted by GitBox <gi...@apache.org>.
HyukjinKwon commented on a change in pull request #28395:
URL: https://github.com/apache/spark/pull/28395#discussion_r417672569



##########
File path: python/pyspark/rdd.py
##########
@@ -877,6 +877,19 @@ def collect(self):
             sock_info = self.ctx._jvm.PythonRDD.collectAndServe(self._jrdd.rdd())
         return list(_load_from_socket(sock_info, self._jrdd_deserializer))
 
+    def collectWithJobGroup(self, groupId, description, interruptOnCancel=False):
+        """
+        .. note:: Experimental
+
+        When collect rdd, use this method to specify job group.
+
+        .. versionadded:: 3.0.0

Review comment:
       I dont think we will ignore the existing definitions of API stability tags. Might be best to stick to what's documented there ...




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[GitHub] [spark] dongjoon-hyun commented on pull request #28395: [SPARK-31549][PYSPARK] Add a develop API invoking collect on Python RDD with user-specified job group

Posted by GitBox <gi...@apache.org>.
dongjoon-hyun commented on pull request #28395:
URL: https://github.com/apache/spark/pull/28395#issuecomment-622229256


   Thank you. The follow-up looks good. BTW, `branch-3.0` UT is broken now by another commit. :(


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[GitHub] [spark] HyukjinKwon commented on pull request #28395: [SPARK-31549][PYSPARK] Add a develop API invoking collect on Python RDD with user-specified job group

Posted by GitBox <gi...@apache.org>.
HyukjinKwon commented on pull request #28395:
URL: https://github.com/apache/spark/pull/28395#issuecomment-621137033


   retest this please


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Posted by GitBox <gi...@apache.org>.
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URL: https://github.com/apache/spark/pull/28395#issuecomment-621523265


   **[Test build #122095 has started](https://amplab.cs.berkeley.edu/jenkins/job/SparkPullRequestBuilder/122095/testReport)** for PR 28395 at commit [`91cf1c6`](https://github.com/apache/spark/commit/91cf1c6f48e95ae7344ec09399e5005be1f9d78f).


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[GitHub] [spark] dongjoon-hyun commented on a change in pull request #28395: [SPARK-31549][PYSPARK] Add a develop API invoking collect on Python RDD with user-specified job group

Posted by GitBox <gi...@apache.org>.
dongjoon-hyun commented on a change in pull request #28395:
URL: https://github.com/apache/spark/pull/28395#discussion_r417511361



##########
File path: python/pyspark/rdd.py
##########
@@ -877,6 +877,19 @@ def collect(self):
             sock_info = self.ctx._jvm.PythonRDD.collectAndServe(self._jrdd.rdd())
         return list(_load_from_socket(sock_info, self._jrdd_deserializer))
 
+    def collectWithJobGroup(self, groupId, description, interruptOnCancel=False):
+        """
+        .. note:: Experimental
+
+        When collect rdd, use this method to specify job group.
+
+        .. versionadded:: 3.0.0

Review comment:
       Do we target this at 3.0.0?
   cc @gatorsmile 




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[GitHub] [spark] SparkQA commented on pull request #28395: [SPARK-31549][PYSPARK] Add a develop API invoking collect on Python RDD with user-specified job group

Posted by GitBox <gi...@apache.org>.
SparkQA commented on pull request #28395:
URL: https://github.com/apache/spark/pull/28395#issuecomment-621600566


   **[Test build #122100 has finished](https://amplab.cs.berkeley.edu/jenkins/job/SparkPullRequestBuilder/122100/testReport)** for PR 28395 at commit [`91cf1c6`](https://github.com/apache/spark/commit/91cf1c6f48e95ae7344ec09399e5005be1f9d78f).
    * This patch **fails PySpark unit tests**.
    * This patch merges cleanly.
    * This patch adds no public classes.


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[GitHub] [spark] dongjoon-hyun edited a comment on pull request #28395: [SPARK-31549][PYSPARK] Add a develop API invoking collect on Python RDD with user-specified job group

Posted by GitBox <gi...@apache.org>.
dongjoon-hyun edited a comment on pull request #28395:
URL: https://github.com/apache/spark/pull/28395#issuecomment-622225266


   Hi, @HyukjinKwon .
   Could you fix Python linter error on `branch-3.0`?
   - https://github.com/apache/spark/commits/branch-3.0
   ```
   ./python/pyspark/tests/test_rdd.py:787:5: E303 too many blank lines (2)
   ```


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[GitHub] [spark] HyukjinKwon commented on pull request #28395: [SPARK-31549][PYSPARK] Add a develop API invoking collect on Python RDD with user-specified job group

Posted by GitBox <gi...@apache.org>.
HyukjinKwon commented on pull request #28395:
URL: https://github.com/apache/spark/pull/28395#issuecomment-622231048


   Thanks for letting me know. I will take a look too.


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   **[Test build #122034 has started](https://amplab.cs.berkeley.edu/jenkins/job/SparkPullRequestBuilder/122034/testReport)** for PR 28395 at commit [`481bba6`](https://github.com/apache/spark/commit/481bba62ce62a13f23ce153e54e8a5f56f6059c2).


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[GitHub] [spark] HyukjinKwon commented on pull request #28395: [SPARK-31549][PYSPARK] Add a develop API invoking collect on Python RDD with user-specified job group

Posted by GitBox <gi...@apache.org>.
HyukjinKwon commented on pull request #28395:
URL: https://github.com/apache/spark/pull/28395#issuecomment-621565163


   retest this please


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