netstat 详解

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