A micro tool for evaluating the uptime of your internet service provider (ISP).
If you want to run a bash-only version of Uptime (fewer dependencies),
simply start screen, then call:
./run.sh
Reliable Internet is sometimes more important that fast Internet. When it goes down, even if it's just for a few seconds, it interrupts thought processes, disconnects from Skype calls, halts downloads, and aborts ssh sessions. Is your ISP living up to its promise of four nines? You can find out.
Every second, a new thread initiates a ping to google.com to see whether it gets a response or not. The ping is given a four second timeout. A ping that returns an exit status of 0 is logged as a success. Any other exit status is logged as a failure. Each ping (including its stdout and stderr) is saved to an sqlite database in db/ping.db so you can query for distinct failure modes.
You can limit the total size of data captured by editing Ping::MAX_AGE_IN_HOURS
Also, make sure you are not storing the entire log unless you have some method of log rotation in place.
If you are running this on OSX, you will need to change Ping::COMMAND to use "-t" instead of "-w"
sudo apt-get install libsqlite3-dev
git clone [email protected]:jackdesert/uptime.git
cd uptime
bundle
ruby run.rb
Sample output:
--- google.com ping statistics ---
1 packets transmitted, 1 received, 0% packet loss, time 0ms
rtt min/avg/max/mdev = 44.124/44.124/44.124/0.000 ms
stderr:
created_at: 2014-03-28 08:29:46 -0700
exitstatus: 0
up?: true
stdout: PING google.com (173.194.33.97) 56(84) bytes of data.
64 bytes from sea09s16-in-f1.1e100.net (173.194.33.97): icmp_req=1 ttl=128 time=42.9 ms
In a separate terminal window, you can ask for the running average.
ruby stats.rb
Sample output from Century Link:
Total pings: 32215
Up: 29359
Down: 2856
91.135% uptime
rm db/ping.db
ruby run.rb