Peter Pei 09814f2cfc support OnCompactionBegin (#4431) ... Summary: fix #4288 Add `OnCompactionBegin` support to `rocksdb::EventListener`. Currently, we only have these three callbacks: - OnFlushBegin - OnFlushCompleted - OnCompactionCompleted As paolococchi requested in #4288 , and ajkr agreed, we should also support `OnCompactionBegin`. This PR is a try to implement the support of `OnCompactionBegin`. Hope it is useful to you. Pull Request resolved: https://github.com/facebook/rocksdb/pull/4431 Differential Revision: D10055515 Pulled By: yiwu-arbug fbshipit-source-id: 39c0f95f8e9ff1c7ca3a10787502a17f258d2334		2018-10-10 17:32:27 -07:00
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rocksdb	support OnCompactionBegin (#4431)	2018-10-10 17:32:27 -07:00