Stefan Richter created FLINK-9702: ------------------------------------- Summary: Improvement in (de)serialization of keys and values for RocksDB state Key: FLINK-9702 URL: https://issues.apache.org/jira/browse/FLINK-9702 Project: Flink Issue Type: Improvement Components: State Backends, Checkpointing Affects Versions: 1.6.0 Reporter: Stefan Richter
When Flink interacts with state in RocksDB, object (de)serialization often contributes significantly to performance overhead. I think there are some aspects that we can improve here to reduce the costs in this area. In particular, currently every state has to serialize the backen's current key before each state access. We could reduce this effort by sharing serialized key bytes across all state interactions. Furthermore, we can reduce the amount of `byte[]` and stream/view that are involved. -- This message was sent by Atlassian JIRA (v7.6.3#76005)