avijayanhwx opened a new pull request #1013: HDDS-1691 : RDBTable#isExist should use Rocksdb#keyMayExist URL: https://github.com/apache/hadoop/pull/1013 RDBTable#isExist can use Rocksdb#keyMayExist, this avoids the cost of reading the value for the key. Please refer, https://github.com/facebook/rocksdb/blob/7a8d7358bb40b13a06c2c6adc62e80295d89ed05/java/src/main/java/org/rocksdb/RocksDB.java#L2184
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