uncleGen edited a comment on issue #26343: [SPARK-29683][YARN] Job will fail due to executor failures all available nodes are blacklisted URL: https://github.com/apache/spark/pull/26343#issuecomment-613181212 > ~~Adding double check `numClusterNodes != 0` can not actually resolve the issue.~~ Adding this condition indeed makes `isAllNodeBlacklisted` happen quite rarely in practice, although it does not resolve issue in some critical conditions. It makes things much better. I will update this PR according @attilapiros idea and listen to others' advice.
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