Github user WeichenXu123 commented on the issue:
https://github.com/apache/spark/pull/14333
@srowen
I check the code about KMean `bcNewCenters` again, if we want to make sure
the recovery of RDD will successful in any unexcepted case, we have to keep
all the `bcNewCenters` generated in each loop, until the loop is done.
because each loop the `costs:RDD` is build using preCosts:RDD, so that it
became a RDD link. and the loop will and only will keep latest two RDDs being
persisted. if the last two RDDs is broken, spark will need to rebuild them from
the first RDD, in such case, each historical `bcNewCenters` generated will be
used.
---
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
