Github user QQshu1 commented on the issue:
https://github.com/apache/spark/pull/16494
@imatiach-msft Excuse me. I have two questions.
1.Why this issue only happen that if we use "sc.setCheckpointDir(path)"
?
2. You say "LDA fails with a ClassCastException when run on a dataset
with at least one row that contains an empty sparse vector. " Why "a dataset
with at least one row that contains an empty sparse vector" that can happen the
issue ?
Thank you!
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