Jin Hai 8b4bcf768b
Fix #839 and improve the code quality (#1470)
* Fix #839 and improve the code quality

Signed-off-by: JinHai-CN <hai.jin@zilliz.com>

* Fix compiling error and building threads number

Signed-off-by: JinHai-CN <hai.jin@zilliz.com>
2020-03-02 12:15:26 +08:00
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