为什么80%的码农都做不了架构师?>>>
最近在初步研究了一下nginx的监控,主要是想监控一些和业务相关的信息,发现能用的方案不多,主要有如下:
1 监控解析nginx log:ngxtop
官方的解释是可以像top命令一样,实时的解析你的nginx访问日志。源码在这里github ngxtop,官方给的例子很多,下面主要解释一下ngxtop的参数:
Usage:ngxtop [options]ngxtop [options] (print|top|avg|sum) <var> ...ngxtop infongxtop [options] query <query> ...Options:-l <file>, --access-log <file> 需要分析的访问日志-f <format>, --log-format <format> log_format指令指定的日志格式 [默认: combined]--no-follow ngxtop default behavior is to ignore current lines in logand only watch for new lines as they are written to the access log.Use this flag to tell ngxtop to process the current content of the access log instead.-t <seconds>, --interval <seconds> report interval when running in follow mode [default: 2.0]-g <var>, --group-by <var> 根据变量分组 [默认: request_path]-w <var>, --having <expr> having clause [default: 1]-o <var>, --order-by <var> 排序 [默认: count]-n <number>, --limit <number> 显示的条数 [default: 10]-a <exp> ..., --a <exp> ... add exp (must be aggregation exp: sum, avg, min, max, etc.) into output-v, --verbose 更多的输出-d, --debug print every line and parsed record-h, --help 当前帮助信息.--version 输出版本信息.高级选项:-c <file>, --config <file> 运行ngxtop解析nginx配置文件-i <filter-expression>, --filter <filter-expression> filter in, records satisfied given expression are processed.-p <filter-expression>, --pre-filter <filter-expression> in-filter expression to check in pre-parsing phase.范例:All examples read nginx config file for access log location and format.If you want to specify the access log file and / or log format, use the -f and -a options."top" like view of nginx requests$ ngxtop404前十的请求$ ngxtop top request_path --filter 'status == 404'总流量前十的请求$ ngxtop --order-by 'avg(bytes_sent) * count'访问量前十的ip地址$ ngxtop --group-by remote_addr输出400以上状态吗的请求以及请求来源$ ngxtop -i 'status >= 400' print request status http_refererAverage body bytes sent of 200 responses of requested path begin with 'foo':$ ngxtop avg bytes_sent --filter 'status == 200 and request_path.startswith("foo")'使用common日志格式分析远程服务器Apache访问日志$ ssh remote tail -f /var/log/apache2/access.log | ngxtop -f common
在编译nginx时添加--with-http_stub_status_module选项,在nginx.conf中开启stub:
location /nginx_status {stub_status on;access_log off;allow 127.0.0.1;deny all;
}
不过这个只是一些简单的统计,针对每个域名虚拟主机的统计却没有。
3 nginx plus
很好很强大的商业版,有个内置的http_stub_status_module模块可以统计每秒各种状态、连接数等等。亲自申请试用了一下,很赞。虽然用不起商业版的,但是在搜寻过程中发现了Server Density,这可是个好东东,虽然server没开源,但是client开源了,而且有一大堆插件,可以拿来主义了,地址在:github density
4 python script monitor
一系列python脚本,里面有监控nginx的脚本,地址:github script