szehon-ho commented on PR #4596:
URL: https://github.com/apache/iceberg/pull/4596#issuecomment-1137635703

   @rdblue @lirui-apache thanks for confirming,  so I think using 
'rewriteManifest' and specifying the commit.manifest.target-size-byte to a 
reasonable size (so you have an even number of entries per manifest file), 
along with a system property: 'iceberg.worker.num-threads' to control how many 
manifests are read at once.  I wonder if that will help that memory problem?


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