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 [![Build Status](https://travis-ci.org/Qihoo360/pika.svg?branch=master)](https://travis-ci.org/Qihoo360/pika) ![Downloads](https://img.shields.io/github/downloads/Qihoo360/pika/total)
 
+|                                             **Stargazers Over Time**                                              |                                                                                                            **Contributors Over Time**                                                                                                            |
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+|      [![Stargazers over time](https://starchart.cc/OpenAtomFoundation/pika.svg)](https://starchart.cc/OpenAtomFoundation/pika)      | [![Contributor over time](https://contributor-graph-api.apiseven.com/contributors-svg?chart=contributorOverTime&repo=OpenAtomFoundation/pika)](https://contributor-graph-api.apiseven.com/contributors-svg?chart=contributorOverTime&repo=OpenAtomFoundation/pika) |
+
 ## Introduction[中文](https://github.com/Qihoo360/pika/blob/master/README_CN.md)
 
 Pika is a persistent huge storage service , compatible  with the vast majority of redis interfaces ([details](https://github.com/Qihoo360/pika/wiki/pika-支持的redis接口及兼容情况)), including string, hash, list, zset, set and management interfaces. With the huge amount of data stored, redis may suffer for a capacity bottleneck, and pika was born for solving it. Except huge storage capacity, pika also support master-slave mode by slaveof command, including full and partial synchronization. You can also use pika together with twemproxy or codis(*pika has supported data migration in codis，thanks [left2right](https://github.com/left2right) and [fancy-rabbit](https://github.com/fancy-rabbit)*) for distributed Redis solution