Blank graph for some munin plugins

Posted by jack on Server Fault See other posts from Server Fault or by jack
Published on 2010-03-16T15:57:07Z Indexed on 2010/03/16 16:01 UTC
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munin

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I have a munin-master and munin-node installed on same server (Ubuntu 9.10 server).

Most pre-installed plugins work well but the following plugins are with blank graph:

Memcached bytes used
Memcached connections
Memcached cache hits and misses
Memcached cached items
Memcached requests
Memcached network traffic
MySQL Queries Cache Size

I run the following 3 script in terminal and results were ok.

/etc/munin/plugins/memcached_bytes
/etc/munin/plugins/memcached_counters
/etc/munin/plugins/memcached_rates

But when I tried the command below after "telnet localhost 4949"

fetch memcached_bytes 
# Unknown service
etch memcached_bytes_
# timeout pid 28009 - killing...done

Does anyone know the reason?

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