jubatus/jubatus — pull request #862 by rimms (2014-08-19 12:10:54+00:00)
Title: Unlock during trying to get ZK-lock

This PR is the patch for #618.

I tested this patch in below condition:

* Number of ``jubaclassifier`` process: 4
* Number of RPC thread: 4
* MIX interval count: 1000
* Number of Client: 96
* Ratio of ``train`` and ``classifier``: 10 : 90

Result is followings:

| QPS | CPU Usage | MIX count
-------------- | -------- | --------- | ---------
w/ this patch | 23836.75 | 79% | 325
wo/ this patch | 12806.05 | 56% | 193