mongodb的mongostat

[work@xxx bin]$ mongostat  --port 28042  --authenticationDatabase admin   -umongodb_dba -p123456  


insert query update delete getmore command dirty used flushes vsize   res qrw arw net_in net_out conn      set repl                time
    *0    *0     *0     *0       0    14|0  0.0% 0.0%       0 1.39G 72.0M 0|0 1|0  2.04k   78.3k    9 glc-test  SEC Nov 26 17:01:18.736
    *0    *0     *0     *0       0    14|0  0.0% 0.0%       0 1.39G 72.0M 0|0 1|0  1.99k   76.4k    9 glc-test  SEC Nov 26 17:01:19.736
    *0    *0     *0     *0       0    14|0  0.0% 0.0%       0 1.39G 72.0M 0|0 1|0  1.99k   76.5k    9 glc-test  SEC Nov 26 17:01:20.735
    *0    *0     *0     *0       1    22|0  0.0% 0.0%       0 1.39G 72.0M 0|0 1|0  2.84k    115k    9 glc-test  SEC Nov 26 17:01:21.734
    *0    *0     *0     *0       0    13|0  0.0% 0.0%       0 1.39G 72.0M 0|0 1|0  1.98k   76.2k    9 glc-test  SEC Nov 26 17:01:22.736
    *0    *0     *0     *0       0    14|0  0.0% 0.0%       0 1.39G 72.0M 0|0 1|0  1.99k   76.7k    9 glc-test  SEC Nov 26 17:01:23.733
    *0    *0     *0     *0       0    13|0  0.0% 0.0%       0 1.39G 72.0M 0|0 1|0  1.99k   76.4k    9 glc-test  SEC Nov 26 17:01:24.734
    *0    *0     *0     *0       1    22|0  0.0% 0.0%       0 1.39G 72.0M 0|0 1|0  2.83k    115k    9 glc-test  SEC Nov 26 17:01:25.734
    *0    *0     *0     *0       0    13|0  0.0% 0.0%       0 1.39G 72.0M 0|0 1|0  1.99k   76.4k    9 glc-test  SEC Nov 26 17:01:26.734
    *0    *0     *0     *0       0    20|0  0.0% 0.0%       1 1.39G 72.0M 0|0 1|0  2.45k   79.8k    9 glc-test  SEC Nov 26 17:01:27.733
insert query update delete getmore command dirty used flushes vsize   res qrw arw net_in net_out conn      set repl                time
    *0    *0     *0     *0       0    13|0  0.0% 0.0%       0 1.39G 72.0M 0|0 1|0  1.99k   76.4k    9 glc-test  SEC Nov 26 17:01:28.734
    *0    *0     *0     *0       1    22|0  0.0% 0.0%       0 1.39G 72.0M 0|0 1|0  2.83k    115k    9 glc-test  SEC Nov 26 17:01:29.733
    *0    *0     *0     *0       0    13|0  0.0% 0.0%       0 1.39G 72.0M 0|0 1|0  1.99k   76.4k    9 glc-test  SEC Nov 26 17:01:30.734
    *0    *0     *0     *0       0    13|0  0.0% 0.0%       0 1.39G 72.0M 0|0 1|0  1.98k   76.3k    9 glc-test  SEC Nov 26 17:01:31.735
    *0    *0     *0     *0       0    15|0  0.0% 0.0%       0 1.39G 72.0M 0|0 1|0  2.04k   76.7k   10 glc-test  SEC Nov 26 17:01:32.735
    *0    *0     *0     *0       1    22|0  0.0% 0.0%       0 1.39G 72.0M 0|0 1|0  2.83k    115k   10 glc-test  SEC Nov 26 17:01:33.734
    *0    *0     *0     *0       0    14|0  0.0% 0.0%       0 1.39G 72.0M 0|0 1|0  1.99k   76.5k   10 glc-test  SEC Nov 26 17:01:34.734
    *0    *0     *0     *0       0    13|0  0.0% 0.0%       0 1.39G 72.0M 0|0 1|0  1.99k   76.4k   10 glc-test  SEC Nov 26 17:01:35.734
    *0    *0     *0     *0       0    14|0  0.0% 0.0%       0 1.39G 72.0M 0|0 1|0  1.99k   76.5k   10 glc-test  SEC Nov 26 17:01:36.733
    *0    *0     *0     *0       0    21|0  0.0% 0.0%       0 1.39G 72.0M 0|0 1|0  2.83k    115k   10 glc-test  SEC Nov 26 17:01:37.734

实时数据库状态，读写、加锁、索引命中、缺页中断、读写等待队列等情况。

每秒刷新一次状态值，并能提供良好的可读性，通过这些参数可以观察到MongoDB系统整体性能情况。

参数说明： 

参数	参数说明
insert	每秒插入量
query	每秒查询量
update	每秒更新量
delete	每秒删除量
conn	当前连接数
qr|qw	客户端查询排队长度（读|写）最好为0，如果有堆积，数据库处理慢。
ar|aw	活跃客户端数量（读|写）
time	当前时间

脚本：sh   mgstat.sh      hostname   port

[work@xxx mgdb]$ cat  mgstat.sh    
#!/bin/bash
mgtop_bin="/home/work/mongodb/4.0/mongostat"
hostname=$1
port=$2
${mgtop_bin}  --uri="mongodb://mongodb_dba:123456@${hostname}:${port}/?authSource=admin"

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