mongodb启动时一些警告
echo never >/sys/kernel/mm/transparent_hugepage/enabled
echo never>/sys/kernel/mm/transparent_hugepage/defrag
vi /etc/security/limits.d/90-nproc.conf //修改1024 为32000
重启mongod
参考:http://blog.youkuaiyun.com/kk185800961/article/details/45613267
http://blog.chinaunix.net/uid-26489617-id-3205109.html