netstat -n | awk '/^tcp/ {++S[$NF]} END {for(a in S) print a, S[a]}'
mysql> show status like '%con%';
+--------------------------+----------+
| Variable_name | Value |
+--------------------------+----------+
| Aborted_connects | 51371 |
| Com_show_contributors | 0 |
| Connections | 79687419 |
| Max_used_connections | 301 |
| Ssl_client_connects | 0 |
| Ssl_connect_renegotiates | 0 |
| Ssl_finished_connects | 0 |
| Threads_connected | 74 |
+--------------------------+----------+
8 rows in set (0.00 sec)
mysql> show status like '%threa%';
+----------------------------+---------+
| Variable_name | Value |
+----------------------------+---------+
| Com_show_thread_statistics | 0 |
| Delayed_insert_threads | 0 |
| Slow_launch_threads | 7 |
| Threads_cached | 2 |
| Threads_connected | 75 |
| Threads_created | 7362850 |
| Threads_running | 6 |
+----------------------------+---------+
7 rows in set (0.00 sec)
查看某个端口号被哪些进程占用：
netstat -pan | grep 7700
[admin@server6 conf]$ netstat -anl | grep 7100 | wc -l
303
netstat -antp | grep uwsgi
netstat -antp | grep 7199 | wc -l
1950
netstat -antp | grep 9910 | wc -l
2031
reids:config
daemonize yes
pidfile /duitang/data/work/mbox.pid
port 6399
timeout 300
loglevel notice
logfile /duitang/logs/mbox.log
databases 6
save 900 1
rdbcompression yes
dbfilename mbox.rdb
dir /duitang/data/mbox/
slave-serve-stale-data yes
appendonly no
appendfsync everysec
no-appendfsync-on-rewrite yes
slowlog-log-slower-than 10000
slowlog-max-len 1024
vm-enabled no
vm-swap-file /duitang/data/work/mbox-redis.swap
vm-max-memory 0
vm-page-size 64
vm-pages 268435456
vm-max-threads 8
hash-max-zipmap-entries 4096
hash-max-zipmap-value 4096
list-max-ziplist-entries 4096
list-max-ziplist-value 4096
set-max-intset-entries 4096
activerehashing yes
zset-max-ziplist-entries 4096
zset-max-ziplist-value 4096