Your JoeDog is pleased to announce a new utility for your fun and games. This is a full-featured version of a perl script we wrote and which is now implemented in C. Introducing AJPing.

This program began life as a snippet which should pave the way for Apache JServ Protocol (AJP) support for siege. Since it’s very useful for checking connectivity and/or measuring the health of a servlet engine, we decided to release it as a fully functional utility.

AJPing supports both IPv4 (default) and IPv6. You can invoke the latter with a command line switch. Let’s take a look at this puppy in action, mmmkay?


Bully $ ajping -i6 -r5 ajp://ip6-localhost:8009/
--- ajping v1.0.1 to ip6-localhost:8009 ---
5 bytes from ip6-localhost (::1): seq=1 time=979 ms
5 bytes from ip6-localhost (::1): seq=2 time=257 ms
5 bytes from ip6-localhost (::1): seq=3 time=199 ms
5 bytes from ip6-localhost (::1): seq=4 time=235 ms
5 bytes from ip6-localhost (::1): seq=5 time=239 ms

--- ip6-localhost:8009 ajping statistics ---
5 packets sent, 5 received, 0% packet loss, time: 1909 ms
rtt min/avg/max = 199/381/979 ms

The first thing you’ll notice is the output looks a lot like ping. That was by design. AJPing sends and receives 5 byte packets and measures the round trip time in milliseconds. When the run is complete, it summarizes the transaction stats in the statistics section of the output.

[AJPing: Initial Public Release]