HyukjinKwon commented on a change in pull request #23685:
[SPARK-26771][CORE][GRAPHX] Make .unpersist(), .destroy() consistently
non-blocking by default
URL: https://github.com/apache/spark/pull/23685#discussion_r252133179
##########
File path: python/pyspark/rdd.py
##########
@@ -244,13 +244,13 @@ def persist(self, storageLevel=StorageLevel.MEMORY_ONLY):
self._jrdd.persist(javaStorageLevel)
return self
- def unpersist(self):
+ def unpersist(self, blocking=False):
Review comment:
To be strict, we could add like:
```
.. versionchanged:: 3.0
Added optional `blocking` to specify blocking Whether to block
until all
blocks are deleted.
```
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