junzhong qin created FLINK-33679:
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Summary: RestoreMode uses NO_CLAIM as default instead of LEGACY
Key: FLINK-33679
URL: https://issues.apache.org/jira/browse/FLINK-33679
Project: Flink
Issue Type: Improvement
Components: Documentation, Runtime / State Backends
Reporter: junzhong qin
RestoreMode uses NO_CLAIM as default instead of LEGACY.
{code:java}
public enum RestoreMode implements DescribedEnum {
CLAIM(
"Flink will take ownership of the given snapshot. It will clean the"
+ " snapshot once it is subsumed by newer ones."),
NO_CLAIM(
"Flink will not claim ownership of the snapshot files. However it
will make sure it"
+ " does not depend on any artefacts from the restored
snapshot. In order to do that,"
+ " Flink will take the first checkpoint as a full one,
which means it might"
+ " reupload/duplicate files that are part of the restored
checkpoint."),
LEGACY(
"This is the mode in which Flink worked so far. It will not claim
ownership of the"
+ " snapshot and will not delete the files. However, it can
directly depend on"
+ " the existence of the files of the restored checkpoint.
It might not be safe"
+ " to delete checkpoints that were restored in legacy mode
");
private final String description;
RestoreMode(String description) {
this.description = description;
}
@Override
@Internal
public InlineElement getDescription() {
return text(description);
}
public static final RestoreMode DEFAULT = NO_CLAIM;
} {code}
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