2e2f32603c
This patch rewrites the old checkpointing code in a way that is easier to understand. It also adds a guard against an invalid specification of checkpoint directory to provide a clearer error message. Most of the changes here are relatively minor. Author: Andrew Or <andrew@databricks.com> Closes #6968 from andrewor14/checkpoint-cleanup and squashes the following commits: 4ef8263 [Andrew Or] Use global synchronized instead 6f6fd84 [Andrew Or] Merge branch 'master' of github.com:apache/spark into checkpoint-cleanup b1437ad [Andrew Or] Warn instead of throw 5484293 [Andrew Or] Merge branch 'master' of github.com:apache/spark into checkpoint-cleanup 7fb4af5 [Andrew Or] Guard against bad settings of checkpoint directory 691da98 [Andrew Or] Simplify checkpoint code / code style / comments |
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