dongjoon-hyun commented on pull request #32727:
URL: https://github.com/apache/spark/pull/32727#issuecomment-852740276
Thank you, @holdenk !
Hi, @Ngone51 . It's a very common case. Try this.
```
scala> Seq((1,2)).toDF("a", "b").repartition(10).groupBy("a").count().show()
+---+-----+
| a|count|
+---+-----+
| 1| 1|
+---+-----+
$ ls -al blockmgr-b9389ef6-6328-4953-9d66-e6e2da21f65c/* | grep shuffle
-rw-r--r-- 1 dongjoon staff 1608 Jun 1 22:35 shuffle_1_9_0.index
-rw-r--r-- 1 dongjoon staff 1608 Jun 1 22:35 shuffle_1_10_0.index
-rw-r--r-- 1 dongjoon staff 1608 Jun 1 22:35 shuffle_1_7_0.index
-rw-r--r-- 1 dongjoon staff 60 Jun 1 22:35 shuffle_1_1_0.data
-rw-r--r-- 1 dongjoon staff 1608 Jun 1 22:35 shuffle_1_5_0.index
-rw-r--r-- 1 dongjoon staff 59 Jun 1 22:35 shuffle_0_0_0.data
-rw-r--r-- 1 dongjoon staff 1608 Jun 1 22:35 shuffle_1_3_0.index
-rw-r--r-- 1 dongjoon staff 1608 Jun 1 22:35 shuffle_1_2_0.index
-rw-r--r-- 1 dongjoon staff 88 Jun 1 22:35 shuffle_0_0_0.index
-rw-r--r-- 1 dongjoon staff 1608 Jun 1 22:35 shuffle_1_1_0.index
-rw-r--r-- 1 dongjoon staff 1608 Jun 1 22:35 shuffle_1_4_0.index
-rw-r--r-- 1 dongjoon staff 1608 Jun 1 22:35 shuffle_1_6_0.index
-rw-r--r-- 1 dongjoon staff 1608 Jun 1 22:35 shuffle_1_8_0.index
```
--
This is an automated message from the Apache Git Service.
To respond to the message, please log on to GitHub and use the
URL above to go to the specific comment.
For queries about this service, please contact Infrastructure at:
[email protected]
---------------------------------------------------------------------
To unsubscribe, e-mail: [email protected]
For additional commands, e-mail: [email protected]
