[jira] [Created] (FLINK-11138) RocksDB's wal seems to be useless in rocksdb-state-backend that reduce the disk's overhead

[Shang Yuanchun (Jira)]

cailiuyang created FLINK-11138:
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             Summary: RocksDB's wal seems to be useless in rocksdb-state-backend that reduce the disk's overhead
                 Key: FLINK-11138
                 URL: https://issues.apache.org/jira/browse/FLINK-11138
             Project: Flink
          Issue Type: Improvement
            Reporter: cailiuyang


The wal of rocksdb is used to recovery after crash, but after flink-job crash, it always recovery from last checkpoint, so it seems wal is useless.

Am i right?



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