Hi, All, I want to find internal code in hbase where physical deleting a record occurs.
-some of my understanding. Correct me if I am wrong. (It is largely based on my experience and even speculation.) Logically deleting a KeyValue data in hbase is performed by marking tombmarker (by Delete() per records) or setting TTL/max_version (per Store). After these actions, however, the physical data are still there, somewhere in the system. Physically deleting a record in hbase is realised by *a scanner to discard a keyvalue data record* during the major_compact. -what I need I want to extend hbase to associate some actions with physically deleting a record. Does hbase provide such hook (or coprocessor API) to inject code for each KV record that is skipped by hbase storescanner in major_compact. If not, anyone knows where should I look into in hbase (-0.94.2) for such code modification? Thanks. Yun
