1996fanrui commented on code in PR #21960:
URL: https://github.com/apache/flink/pull/21960#discussion_r1110001094
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flink-runtime/src/test/java/org/apache/flink/runtime/testutils/MiniClusterResource.java:
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@@ -199,6 +200,9 @@ private void startMiniCluster() throws Exception {
new
Configuration(miniClusterResourceConfiguration.getConfiguration());
configuration.setString(
CoreOptions.TMP_DIRS,
temporaryFolder.newFolder().getAbsolutePath());
+ configuration.set(
+ CheckpointingOptions.CHECKPOINTS_DIRECTORY,
+ temporaryFolder.newFolder().toURI().toString());
Review Comment:
FileSystemCheckpointStorage is compatible with more scenarios than
JobManagerCheckpointStorage, for example: scenarios with medium or large state
sizes. But its performance may be a little bit worse in small state scenarios.
I can fix the bug that the test fails, and then we look at the test running
time. If there is no significant increase, `FileSystemCheckpointStorage` can be
used as the default, what do you think?
Actually, I don't think there be much impact on CI running time after
FileSystemCheckpointStorage is the default, because
`JobManagerCheckpointStorage` just works when state size < 5MB, it's small
state. Small state should not consume too much time when using
FileSystemCheckpointStorage.
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