redis.conf配置文件中 maxclients默认最大10000连接
127.0.0.1:6379> CONFIG GET maxclients 1) "maxclients" 2) "10000"
在Redis服务器启动时，设置最大连接数为100000
$redis-server --maxclients 100000
Redis客户端查看客户端连接的命令：
CLIENT LIST 返回连接到redis服务器的客户端列表 CLIENT SETNAME 设置当前链接的名称 CLIENT GETNAME 获取通过CLIENT SETNAME 命令设置的服务名称 CLIENT PAUSE 挂起客户端链接，指定挂起的时间以毫秒计 CLIENT KILL关闭客户端链接
127.0.0.1:6379> CLIENT LIST id=132 addr=127.0.0.1:57374 laddr=127.0.0.1:6379 fd=8 name= age=1671 idle=1186 flags=N db=0 sub=0 psub=0 multi=-1 qbuf=0 qbuf-free=0 argv-mem=0 obl=0 oll=0 omem=0 tot-mem=20512 events=r cmd=publish user=default redir=-1 id=133 addr=127.0.0.1:57790 laddr=127.0.0.1:6379 fd=9 name= age=1250 idle=1168 flags=N db=0 sub=0 psub=0 multi=-1 qbuf=0 qbuf-free=0 argv-mem=0 obl=0 oll=0 omem=0 tot-mem=20512 events=r cmd=publish user=default redir=-1 id=137 addr=127.0.0.1:59014 laddr=127.0.0.1:6379 fd=7 name= age=6 idle=0 flags=N db=0 sub=0 psub=0 multi=-1 qbuf=26 qbuf-free=40928 argv-mem=10 obl=0 oll=0 omem=0 tot-mem=61466 events=r cmd=client user=default redir=-1 127.0.0.1:6379> CLIENT KILL 127.0.0.1:57374 OK 127.0.0.1:6379> CLIENT SETANME cli1 OK 127.0.0.1:6379> CLIENT GETNAME "cli1"