yigress commented on code in PR #23425:
URL: https://github.com/apache/flink/pull/23425#discussion_r1366104698
##########
flink-core/src/main/java/org/apache/flink/configuration/CheckpointingOptions.java:
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@@ -109,6 +109,20 @@ public class CheckpointingOptions {
.defaultValue(1)
.withDescription("The maximum number of completed
checkpoints to retain.");
+ /**
+ * Option whether to clean individual checkpoint's operatorstates in
parallel. If enabled,
+ * operator states are discarded in parallel using the ExecutorService
passed to the cleaner.
+ * This speeds up checkpoints cleaning, but adds load to the IO.
+ */
+ @Documentation.Section(Documentation.Sections.COMMON_STATE_BACKENDS)
+ public static final ConfigOption<Boolean> CLEANER_PARALLEL_MODE =
+ ConfigOptions.key("state.checkpoint.cleaner.parallel-mode")
+ .booleanType()
+ .defaultValue(false)
Review Comment:
add back the config and set default value to true. @pnowojski can you review
again? thank you for your patient reviews!
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