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ngxtop parses your nginx access log and outputs useful, top-like, metrics of your nginx server. So you can tell what is happening with your server in real-time.
ngxtop tries to determine the correct location and format of nginx access log file by default, so you can just run ngxtop and having a close look at all requests coming to your nginx server. But it does not limit you to nginx and the default top view. ngxtop is flexible enough for you to configure and change most of its behaviours. You can query for different things, specify your log and format, even parse remote Apache common access log with ease. See sample usages below for some ideas about what you can do with it.

Installation

pip install ngxtop
Note: ngxtop is primarily developed and tested with python2 but also supports python3.

Usage

Usage:
    ngxtop [options]
    ngxtop [options] (print|top|avg|sum) <var>
    ngxtop info

Options:
    -l <file>, --access-log <file>  access log file to parse.
    -f <format>, --log-format <format>  log format as specify in log_format directive.
    --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>  group by variable [default: request_path]
    -w <var>, --having <expr>  having clause [default: 1]
    -o <var>, --order-by <var>  order of output for default query [default: count]
    -n <number>, --limit <number>  limit the number of records included in report for top command [default: 10]
    -a <exp> ..., --a <exp> ...  add exp (must be aggregation exp: sum, avg, min, max, etc.) into output

    -v, --verbose  more verbose output
    -d, --debug  print every line and parsed record
    -h, --help  print this help message.
    --version  print version information.

    Advanced / experimental options:
    -c <file>, --config <file>  allow ngxtop to parse nginx config file for log format and location.
    -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.

Samples

Default output

$ ngxtop
running for 411 seconds, 64332 records processed: 156.60 req/sec

Summary:
|   count |   avg_bytes_sent |   2xx |   3xx |   4xx |   5xx |
|---------+------------------+-------+-------+-------+-------|
|   64332 |         2775.251 | 61262 |  2994 |    71 |     5 |

Detailed:
| request_path                             |   count |   avg_bytes_sent |   2xx |   3xx |   4xx |   5xx |
|------------------------------------------+---------+------------------+-------+-------+-------+-------|
| /abc/xyz/xxxx                            |   20946 |          434.693 | 20935 |     0 |    11 |     0 |
| /xxxxx.json                              |    5633 |         1483.723 |  5633 |     0 |     0 |     0 |
| /xxxxx/xxx/xxxxxxxxxxxxx                 |    3629 |         6835.499 |  3626 |     0 |     3 |     0 |
| /xxxxx/xxx/xxxxxxxx                      |    3627 |        15971.885 |  3623 |     0 |     4 |     0 |
| /xxxxx/xxx/xxxxxxx                       |    3624 |         7830.236 |  3621 |     0 |     3 |     0 |
| /static/js/minified/utils.min.js         |    3031 |         1781.155 |  2104 |   927 |     0 |     0 |
| /static/js/minified/xxxxxxx.min.v1.js    |    2889 |         2210.235 |  2068 |   821 |     0 |     0 |
| /static/tracking/js/xxxxxxxx.js          |    2594 |         1325.681 |  1927 |   667 |     0 |     0 |
| /xxxxx/xxx.html                          |    2521 |          573.597 |  2520 |     0 |     1 |     0 |
| /xxxxx/xxxx.json                         |    1840 |          800.542 |  1839 |     0 |     1 |     0 |

View top source IPs of clients

$ ngxtop top remote_addr
running for 20 seconds, 3215 records processed: 159.62 req/sec

top remote_addr
| remote_addr     |   count |
|-----------------+---------|
| 118.173.177.161 |      20 |
| 110.78.145.3    |      16 |
| 171.7.153.7     |      16 |
| 180.183.67.155  |      16 |
| 183.89.65.9     |      16 |
| 202.28.182.5    |      16 |
| 1.47.170.12     |      15 |
| 119.46.184.2    |      15 |
| 125.26.135.219  |      15 |
| 125.26.213.203  |      15 |

List 4xx or 5xx responses together with HTTP referer

$ ngxtop -i 'status >= 400' print request status http_referer
running for 2 seconds, 28 records processed: 13.95 req/sec

request, status, http_referer:
| request   |   status | http_referer   |
|-----------+----------+----------------|
| -         |      400 | -              |

Parse apache log from remote server with common format

$ ssh user@remote_server tail -f /var/log/apache2/access.log | ngxtop -f common
running for 20 seconds, 1068 records processed: 53.01 req/sec

Summary:
|   count |   avg_bytes_sent |   2xx |   3xx |   4xx |   5xx |
|---------+------------------+-------+-------+-------+-------|
|    1068 |        28026.763 |  1029 |    20 |    19 |     0 |

Detailed:
| request_path                             |   count |   avg_bytes_sent |   2xx |   3xx |   4xx |   5xx |
|------------------------------------------+---------+------------------+-------+-------+-------+-------|
| /xxxxxxxxxx                              |     199 |        55150.402 |   199 |     0 |     0 |     0 |
| /xxxxxxxx/xxxxx                          |     167 |        47591.826 |   167 |     0 |     0 |     0 |
| /xxxxxxxxxxxxx/xxxxxx                    |      25 |         7432.200 |    25 |     0 |     0 |     0 |
| /xxxx/xxxxx/x/xxxxxxxxxxxxx/xxxxxxx      |      22 |          698.727 |    22 |     0 |     0 |     0 |
| /xxxx/xxxxx/x/xxxxxxxxxxxxx/xxxxxx       |      19 |         7431.632 |    19 |     0 |     0 |     0 |
| /xxxxx/xxxxx/                            |      18 |         7840.889 |    18 |     0 |     0 |     0 |
| /xxxxxxxx/xxxxxxxxxxxxxxxxx              |      15 |         7356.000 |    15 |     0 |     0 |     0 |
| /xxxxxxxxxxx/xxxxxxxx                    |      15 |         9978.800 |    15 |     0 |     0 |     0 |
| /xxxxx/                                  |      14 |            0.000 |     0 |    14 |     0 |     0 |
| /xxxxxxxxxx/xxxxxxxx/xxxxx               |      13 |        20530.154 |    13 |     0 |     0 |     0 |


Source: https://github.com/lebinh/ngxtop

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