[GitHub] [iceberg] aokolnychyi commented on pull request #1211: Use Spark for Scanning of Manifest Files during Snapshot Expiration

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aokolnychyi commented on pull request #1211:
URL: https://github.com/apache/iceberg/pull/1211#issuecomment-659490881


   Thanks, @RussellSpitzer! Let me take a look at this today.
   
   To give a bit of background, we had a case where people compacted their table that reduced the number of files from 5+ million to under 1 million in a short period of time. That processed generated a huge number of new snapshots as different parts were optimized separately (one leaf partition at a time). As a result, the expiry of snapshots was really slow.
   
   This is an attempt to fix those edge cases.


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