nginx日志监控工具之ngxtop

nginx日志监控工具之ngxtop

 

还在tail看nginx日志文件?out啦

tail -f 日志路径

ngxtop:

ngxtop是一个基于python的程序,可以在Python上安装。ngxtop通过实时解析nginx访问日志,并将结果(nginx服务器的有用指标)输出到终端

 

主要功能:

  • 当前有效请求

  • 总请求计数摘要

  • 按状态代码提供的总请求数(2xx,3xx,4xx,5xx)

  • 发送平均字节

  • 顶级远程地址

不仅能实时监控Nginx日志的访问还可以对以前的日志进行排查整理。

 

安装:

示例为:centos7系统,安装了Python和pip

wget http://dl.fedoraproject.org/pub/epel/7/x86_64/e/epel-release-7-6.noarch.rpm
rpm -ivh epel-release-7-6.noarch.rpm

然后执行以下命令安装pip
yum install python-pip

最后使用下面安装ngxtop
pip install ngxtop

ngxtop用法:

ngxtop [选项]
ngxtop [选项](print | top | avg | sum)<var>
ngxtop info

选项和具体:

# ngxtop --help

ngxtop - ad-hoc query for nginx access log.

Usage:

ngxtop [options]

ngxtop [options] (print|top|avg|sum) <var> ...

ngxtop info

ngxtop [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 log

and 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.

ngxtop示例:

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

$ ngxtop

404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_referer

Average 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

其他示例:

实时状态查看:

ngxtop -c /opt/nginx/conf/nginx.conf

访问前几的IP:

ngxtop -c /opt/nginx/conf/nginx.conf top remote_addr

显示状态码为404的请求:

ngxtop -i 'status == 404' print request status

显示前二十最频繁的请求:

ngxtop -n 20

使用普通格式从远程服务器解析apache日志:

ssh user@remote_server tail -f /var/log/apache2/access.log | ngxtop -f common

 

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