Hey quick question is it possible for rrdcached to connect to an IP address 
instead of a unix socket with the rrdcached plugin.

The following is my rrdcached config and collectd config working with the unix 
socket
-----------------------------------------------------------------------------------------
/etc/sysconfig/rrdcached
OPTIONS="-l unix:/var/rrdtool/rrdcached/rrdcached.sock -F -s root -m 664 -b 
/data/collectd/rrd -j /tmp/ -P FLUSH,PENDING -w 300 -z 90 -t 20"

/etc/collectd.conf
LoadPlugin rrdcached
<Plugin "rrdcached">
  DaemonAddress "unix:/var/rrdtool/rrdcached/rrdcached.sock"
  DataDir "/data/collectd/rrd"
  CreateFiles true
</Plugin>
-------------------------------------------------------------------------------------------

The following is not working if I’m running rrdcached bound to an IP instead of 
a unix socket.
/etc/sysconfig/rrdcached
OPTIONS="-P 
FLUSH,FLUSHALL,PENDING,FORGET,QUEUE,HELP,STATS,UPDATE,WROTE,BATCH,QUIT -l 
hostname:42217 -F -s root -m 664 -b /data/collectd/rrd -j /tmp/  -w 300 -z 90 
-t 20

/etc/collectd.conf
LoadPlugin rrdcached
<Plugin "rrdcached">
  DaemonAddress "hostname:42217"
  DataDir "/data/collectd/rrd"
  CreateFiles true
</Plugin>


Changing any of the –P options dosen’t seem to help.

I know the recommend method is to use the unix socket, however I’m going to be 
running this in drbd setup so basically the directory where the files and 
daemon are running on can change.  I have a floating IP that will move between 
the collection servers.  That’s why I need to be able to set the DamonAddress 
to an IP.  The IP for the Daemon Address will be able to write to the directory 
correctly.

Any help would be appreciated.




Stephen Wright Open Source Engineer | comScore, Inc. (NASDAQ:SCOR)

o +1 (312) 777-8806 | [email protected]<mailto:[email protected]>

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