thefinn93/munin-plugins

Some munin plugins I wrote

Some munin plugins I wrote. Still moving from being a Minecraft specific repo, so if you see any references to Minecraft where they don't belong, let me know (or fix it and pull request)

Install

1. Place these files in your munin plugins directory then symlink them to the active plugins directory, or whatever your distro does. On Ubuntu, place them in /usr/share/munin/plugins/ then symlink them in /etc/munin/plugins/.

2. Edit your munin-node file (on Ubuntu this is located in /etc/munin/plugin-conf.d/munin-node) and add the appropriate information. See the README's in each subdirectory for more specific infomation.

3. Restart munin-node and your server should start reporting stats.

munin-plugins's Issues

documentation issue

env.password=

there shouldnt be a equal sign

"java.io.IOException: Bad packet id 28" Error from MC server

While trying to set up the plugins I ran into the following problem. In the Minecraft server's log I get the following error when the munin plugins try to connect:

2013-03-12 13:00:08 [INFO] [STDERR] java.io.IOException: Bad packet id 28
2013-03-12 13:00:08 [INFO] [STDERR]     at ef.a(Packet.java:151)
2013-03-12 13:00:08 [INFO] [STDERR]     at cg.i(TcpConnection.java:324)
2013-03-12 13:00:08 [INFO] [STDERR]     at cg.c(TcpConnection.java:544)
2013-03-12 13:00:08 [INFO] [STDERR]     at ch.run(SourceFile:93)
2013-03-12 13:00:08 [INFO] [Minecraft] /192.26.174.248:53622 lost connection

the munin logs on the other hand show the following error:

2013/03/12-13:00:09 [20775] Error output from minecraft_memory_ulti:
2013/03/12-13:00:09 [20775]     Traceback (most recent call last):
2013/03/12-13:00:09 [20775]       File "/etc/munin/plugins/minecraft_memory_ulti", line 69, in <module>
2013/03/12-13:00:09 [20775]         r = MCRcon(host, port, pwd)
2013/03/12-13:00:09 [20775]       File "/etc/munin/plugins/minecraft_memory_ulti", line 25, in __init__
2013/03/12-13:00:09 [20775]         self.send_real(3, password)
2013/03/12-13:00:09 [20775]       File "/etc/munin/plugins/minecraft_memory_ulti", line 46, in send_real
2013/03/12-13:00:09 [20775]         tmp_len, tmp_req_id, tmp_type = struct.unpack('<iii', self.s.recv(12))
2013/03/12-13:00:09 [20775]     struct.error: unpack requires a string argument of length 12
2013/03/12-13:00:09 [20775] Service 'minecraft_memory_ulti' exited with status 1/0.
2013/03/12-13:00:09 [20775] Error output from minecraft_memory_ulti:
2013/03/12-13:00:09 [20775]     Traceback (most recent call last):
2013/03/12-13:00:09 [20775]       File "/etc/munin/plugins/minecraft_memory_ulti", line 69, in <module>
2013/03/12-13:00:09 [20775]         r = MCRcon(host, port, pwd)
2013/03/12-13:00:09 [20775]       File "/etc/munin/plugins/minecraft_memory_ulti", line 25, in __init__
2013/03/12-13:00:09 [20775]         self.send_real(3, password)
2013/03/12-13:00:09 [20775]       File "/etc/munin/plugins/minecraft_memory_ulti", line 46, in send_real
2013/03/12-13:00:09 [20775]         tmp_len, tmp_req_id, tmp_type = struct.unpack('<iii', self.s.recv(12))
2013/03/12-13:00:09 [20775]     struct.error: unpack requires a string argument of length 12
2013/03/12-13:00:09 [20775] Service 'minecraft_memory_ulti' exited with status 1/0.

I double checked the the config and the rcon setting but everything looks right and since the munin side manages to contact the server at least the port and ip settings must be working.

list number of online users

it would be nice to be able to graph the number of online users.

(I can perhaps provide a patch if you dont happen to have the feature somwhere already)