{"action":"created","comment":{"url":"https://api.github.com/repos/apache/spark/pulls/comments/33342683","id":33342683,"diff_hunk":"@@ -63,6 +63,9 @@ class PartitionerAwareUnionRDD[T: ClassTag](\n   require(rdds.forall(_.partitioner.isDefined))\n   require(rdds.flatMap(_.partitioner).toSet.size == 1,\n     \"Parent RDDs have different partitioners: \" + rdds.flatMap(_.partitioner))\n+  require(rdds.map(_.partitioner.get.numPartitions).toSet.size == 1,","path":"core/src/main/scala/org/apache/spark/rdd/PartitionerAwareUnionRDD.scala","position":4,"original_position":4,"commit_id":"3c5b203fd2b85f4110795a1fc6ca3e289ca0d837","original_commit_id":"3c5b203fd2b85f4110795a1fc6ca3e289ca0d837","user":{"login":"viirya","id":68855,"avatar_url":"https://avatars.githubusercontent.com/u/68855?v=3","gravatar_id":"","url":"https://api.github.com/users/viirya","html_url":"https://github.com/viirya","followers_url":"https://api.github.com/users/viirya/followers","following_url":"https://api.github.com/users/viirya/following{/other_user}","gists_url":"https://api.github.com/users/viirya/gists{/gist_id}","starred_url":"https://api.github.com/users/viirya/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/viirya/subscriptions","organizations_url":"https://api.github.com/users/viirya/orgs","repos_url":"https://api.github.com/users/viirya/repos","events_url":"https://api.github.com/users/viirya/events{/privacy}","received_events_url":"https://api.github.com/users/viirya/received_events","type":"User","site_admin":false},"body":"The partitioners of the rdds might have different `numPartitions`. It will causes error later.","created_at":"2015-06-26T09:54:57Z","updated_at":"2015-06-26T09:54:57Z","html_url":"https://github.com/apache/spark/pull/7021#discussion_r33342683","pull_request_url":"https://api.github.com/repos/apache/spark/pulls/7021","_links":{"self":{"href":"https://api.github.com/repos/apache/spark/pulls/comments/33342683"},"html":{"href":"https://github.com/apache/spark/pull/7021#discussion_r33342683"},"pull_request":{"href":"https://api.github.com/repos/apache/spark/pulls/7021"}}},"pull_request":{"url":"https://api.github.com/repos/apache/spark/pulls/7021","id":38569012,"html_url":"https://github.com/apache/spark/pull/7021","diff_url":"https://github.com/apache/spark/pull/7021.diff","patch_url":"https://github.com/apache/spark/pull/7021.patch","issue_url":"https://api.github.com/repos/apache/spark/issues/7021","number":7021,"state":"open","locked":false,"title":"[SPARK-8582][Core] Add CheckpointingIterator to optimize 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