Zhongyi Xie d51eb0b583 set snappy compression only when supported (#4325)
Summary:
Right now `OptimizeLevelStyleCompaction` may set compression type to Snappy even when Snappy is not supported, this may cause errors like "no snappy compression support"
Fixes https://github.com/facebook/rocksdb/issues/4283
Pull Request resolved: https://github.com/facebook/rocksdb/pull/4325

Differential Revision: D15125542

Pulled By: miasantreble

fbshipit-source-id: 70890b73ababe16752721555dbd290633c2aafac
2019-05-01 20:40:00 -07:00
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2017-07-15 16:11:23 -07:00
2017-07-15 16:11:23 -07:00