Github user StefanRRichter commented on a diff in the pull request:
https://github.com/apache/flink/pull/5582#discussion_r192018187
--- Diff:
flink-state-backends/flink-statebackend-rocksdb/src/main/java/org/apache/flink/contrib/streaming/state/RocksDBKeySerializationUtils.java
---
@@ -138,4 +138,12 @@ private static void writeVariableIntBytes(
value >>>= 8;
} while (value != 0);
}
+
+ public static byte[] serializeKeyGroup(int keyGroup, int
keyGroupPrefixBytes) {
+ byte[] startKeyGroupPrefixBytes = new byte[keyGroupPrefixBytes];
--- End diff --
This is a very good question. But I think for as long as we consider
rescaling incremental checkpoints itself as experimental, we can try to use the
`deleteRange` and change it in case we experience any problems. Would that be
ok?
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