Installation guide for Redis stat _redis

Redis-stat is a monitoring Redis program written in Ruby that gets information based on the info command, rather than through the monitor.

First, install Ruby

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Yum install-y Ruby Ruby-devel RubyGems
Apt-get install RubyGems Ruby.

The intermittent connection to the resource file rubygems.org stored on Amazon S3 failed due to domestic network reasons. So you will encounter with gem install rack or bundle install when Half-day no response, so need to modify rubygems for Taobao mirror.

Ii. Replacement of RubyGems

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Gem sources--add https://ruby.taobao.org/--remove http://rubygems.org/
Gem Sources-l

Iii. installation of Redis-stat

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git clone https://github.com/junegunn/redis-stat.git
Gem Install Redis-stat

Will prompt

Building native extensions. This is could take a while ...
Building native extensions. This is could take a while ...
Building native extensions. This is could take a while ...
Error:error Installing Redis-stat:
Redis-stat requires Daemons (~> 1.1.9, runtime)

Four, uninstall daemons

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Gem Uninstall daemons
Gem Install daemons
Gem Install Redis-stat

Install Redis-stat also installs daemons-1.1.9, if the system is installed daemons other version, need to uninstall again

Error:error Installing Redis-stat:
Redis-stat requires Daemons (~> 1.1.9, runtime)

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Gem Uninstall daemons

Select Gem to uninstall:
1. daemons-1.1.9
2. daemons-1.2.3
3. All versions
> 2
Successfully uninstalled daemons-1.2.3

V. Installation of Systemtimer

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Gem Install Systemtimer

And then we can start Redis-stat.

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Redis-stat--verbose--server= ...:
Redis-stat 110.160.4.71:6379 110.47.90.168:6379 1 10

Add: Redis-stat

Redis-stat is a real-time monitoring of the status of Redis instances, including overview, Vmstat, Vmpage, ondisk-size, latency, specific information as follows:

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$./redis-stat Help
Usage:redis-stat <type> ... options ...

Statistic types:

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Overview (default) Print general information about a Redis instance.
Vmstat Print information about Redis VM activity.
Vmpage Try to guess the best vm-page-size for your dataset.
Ondisk-size Stats and graphs about values len once stored on disk.
Latency Measure Redis Server latency.

Options:

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Host Port Delay <milliseconds> delay between requests (default:1000 MS, 1 second).
SampleSize <keys> number of keys to sample for ' Vmpage ' Stat.
Logscale User power-of-two logarithmic scale in graphs.

A simple test example:

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$./redis-stat Host 127.0.0.1 Port 6379
-------data---------------------------Load---------------------child-
Keys MEM clients blocked requests connections
29602 3.45M 1 0 30090 (+0) 157
29602 3.45M 1 0 30091 (+1) 157
29602 3.45M 1 0 30092 (+1) 157
29602 3.45M 1 0 30093 (+1) 157
29602 3.45M 1 0 30094 (+1) 157
29602 3.45M 1 0 30095 (+1) 157
29602 3.45M 1 0 30096 (+1) 157
29602 3.45M 1 0 30097 (+1) 157
29602 3.45M 1 0 30098 (+1) 157
...
...

It is also useful to view real-time latency for Redis instances:

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$./redis-stat Latency host 127.0.0.1 Port 6379
1:0.23 ms
2:0.67 ms
3:0.21 ms
4:0.23 ms
5:0.23 ms
6:0.16 ms
7:0.37 ms
...
...