nats-io / nats-top

A top-like tool for monitoring NATS servers.
https://nats.io
MIT License
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monitoring nats top

nats-top

License Build Release

nats-top is a top-like tool for monitoring NATS servers.

$ nats-top

NATS server version 0.7.3 (uptime: 3m34s)
Server:
  Load: CPU:  58.3%  Memory: 8.6M  Slow Consumers: 0
  In:   Msgs: 568.7K  Bytes: 1.7M  Msgs/Sec: 13129.0  Bytes/Sec: 38.5K
  Out:  Msgs: 1.6M  Bytes: 4.7M  Msgs/Sec: 131290.9  Bytes/Sec: 384.6K    

Connections: 10
  HOST                 CID    NAME        SUBS    PENDING     MSGS_TO   MSGS_FROM   BYTES_TO    BYTES_FROM  LANG     VERSION  UPTIME   LAST ACTIVITY
  127.0.0.1:57487      13     example     1       12.0K       161.6K    0           484.7K      0           go       1.1.7    17s      2016-02-09 00:13:24.753062715 -0800 PST
  127.0.0.1:57488      14     example     1       11.9K       161.6K    0           484.7K      0           go       1.1.7    17s      2016-02-09 00:13:24.753040168 -0800 PST
  127.0.0.1:57489      15     example     1       12.1K       161.6K    0           484.7K      0           go       1.1.7    17s      2016-02-09 00:13:24.753069442 -0800 PST
  127.0.0.1:57490      16     example     1       12.0K       161.6K    0           484.7K      0           go       1.1.7    17s      2016-02-09 00:13:24.753057413 -0800 PST
  127.0.0.1:57491      17     example     1       12.1K       161.6K    0           484.7K      0           go       1.1.7    17s      2016-02-09 00:13:24.75307264 -0800 PST 
  127.0.0.1:57492      18     example     1       12.1K       161.6K    0           484.7K      0           go       1.1.7    17s      2016-02-09 00:13:24.753066213 -0800 PST
  127.0.0.1:57493      19     example     1       12.0K       161.6K    0           484.7K      0           go       1.1.7    17s      2016-02-09 00:13:24.753075802 -0800 PST
  127.0.0.1:57494      20     example     1       12.2K       161.6K    0           484.7K      0           go       1.1.7    17s      2016-02-09 00:13:24.753052178 -0800 PST
  127.0.0.1:57495      21     example     1       12.1K       161.6K    0           484.7K      0           go       1.1.7    17s      2016-02-09 00:13:24.753048615 -0800 PST
  127.0.0.1:57496      22     example     1       12.0K       161.6K    0           484.7K      0           go       1.1.7    17s      2016-02-09 00:13:24.753016783 -0800 PST

Install

Can be installed via go install:

go install github.com/nats-io/nats-top@latest

and releases of the binary are also available

Usage

usage: nats-top [-s server] [-m http_port] [-ms https_port] [-n num_connections] [-d delay_secs] [-r max] [-o FILE] [-l DELIMITER] [-sort by]
                [-cert FILE] [-key FILE ][-cacert FILE] [-k] [-b] [-v|--version] [-u|--display-subscriptions-column]

Commands

While in top view, it is possible to use the following commands:

Demo

nats-top