elonazoulay commented on pull request #6831:
URL: https://github.com/apache/incubator-pinot/pull/6831#issuecomment-824372067


   We noticed that gcs was throttling calls to the same prefix and found that 
mkdir() was the culprit: if a blob exists and create is called it is not a 
noop. Instead there is a check to see if the blob exists first.
   
   The throttling is triggered during delete or copy to gcs operations 
(SegmentDeletionManager). After deploying this we dropped a copy of our largest 
table and did not get any 429 errors (gcs rate limit exceeded).


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