MongoDB的优点与不足
在这里收集下我自己对Mongodb的一些优缺点方面的认识，或者是通过其它比较可靠的网文上引用或者摘录的作为依据，这个是一个渐进的
在这里收集下我自己对Mongodb的一些优缺点方面的认识，或者是通过其它比较可靠的网文上引用或者摘录的作为依据，这个是一个渐进的过程，，也是随着我对Mongodb认识的加深而不断扩展的。
（1）Mongodb的不足之处
1、在集群分片中的数据分布不均匀
2、单机可靠性比较差
3、大数据量持续插入，写入性能有较大波动
4、磁盘空间占用比较大
（2）Mongodb的过人之处
1、无模式
2、查询与索引方式灵活，是最像SQL的Nosql
2、支持复制集、主备、互为主备、自动分片等特性
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