tinawenqiao commented on a change in pull request #16183:
URL: https://github.com/apache/flink/pull/16183#discussion_r654185324
##########
File path: flink-dist/src/main/resources/flink-conf.yaml
##########
@@ -107,7 +107,18 @@ parallelism.default: 1
#==============================================================================
# The backend that will be used to store operator state checkpoints if
-# checkpointing is enabled.
+# checkpointing is enabled. Checkpointing is enabled when
execution.checkpointing.interval > 0.
+#
+# Execution checkpointing related parameters.
+#
+# execution.checkpointing.interval: -1
Review comment:
In CheckpointConfig, checkpointInterval default value is -1. -1 means
checkpoint is disabled. And I found that default value is 500ms in function
enableCheckpointing(). I am confused which value is more reasonable.
##########
File path: flink-dist/src/main/resources/flink-conf.yaml
##########
@@ -107,7 +107,18 @@ parallelism.default: 1
#==============================================================================
# The backend that will be used to store operator state checkpoints if
-# checkpointing is enabled.
+# checkpointing is enabled. Checkpointing is enabled when
execution.checkpointing.interval > 0.
+#
+# Execution checkpointing related parameters.
+#
+# execution.checkpointing.interval: -1
+# execution.checkpointing.externalized-checkpoint-retention:
[DELETE_ON_CANCELLATION, RETAIN_ON_CANCELLATION]
+# execution.checkpointing.max-concurrent-checkpoints: 1
+# execution.checkpointing.min-pause: 0
+# execution.checkpointing.mode: [EXACTLY_ONCE, AT_LEAST_ONCE]
+# execution.checkpointing.timeout: 600000
Review comment:
Good idea.
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