Github user ConeyLiu commented on the issue:
https://github.com/apache/spark/pull/17936
hi @jerryshaoï¼thanks for your review. In #17898ï¼there is a potential
buffer to cache the dataï¼so we should control the groupsize very careful.
Because for small sizeï¼it need fetch more times. For lagerï¼there is
potential OOM. Soï¼in this pr we using blockmanager to cache it. And the block
cached can be used multiple task in same executor. But that patch changed
little.
---
If your project is set up for it, you can reply to this email and have your
reply appear on GitHub as well. If your project does not have this feature
enabled and wishes so, or if the feature is enabled but not working, please
contact infrastructure at infrastruct...@apache.org or file a JIRA ticket
with INFRA.
---
---------------------------------------------------------------------
To unsubscribe, e-mail: reviews-unsubscr...@spark.apache.org
For additional commands, e-mail: reviews-h...@spark.apache.org
