Note: "permalinks" may not be as permanent as we would like,
direct links of old sources may well be a few messages off.
Hello, On 10/19/2011 04:49 PM, Nick Khamis wrote: > Hello Everyone, > > What we have is a 4 node cluster: 2 Running mysql on a active/passive, > and 2 running our application on an active/active: > > MyDRBD1 and MyDRBD2: Mysql, DRBD (active/passive) > ASTDRBD1 and ASTDRBD2: In-house application, DRBD dual primary > A snippet of our config looks like this: > > node mydrbd1 \ > attributes standby="off" > node mydrbd2 \ > attributes standby="off" > node astdrbd1 \ > attributes standby="off" > node astdrbd2 \ > attributes standby="off" > primitive drbd_mysql ocf:linbit:drbd \ > params drbd_resource="r0.res" \ > op monitor role=Master interval="10" \ > op monitor role=Slave interval="30" > ..... > primitive drbd_asterisk ocf:linbit:drbd \ > params drbd_resource="r0.res" \ > op monitor interval="20" timeout="20" role=Master \ > op monitor interval="30" timeout="20" role="Slave" > ms ms_drbd_asterisk drbd_asterisk \ > meta master-max="2" notify="true" \ > interleave="true" > group MyServices myIP fs_mysql mysql \ > meta target-role="Started" > group ASTServices astIP asteriskDLM asteriskO2CB fs_asterisk \ > meta target-role="Started" > ..... > > I am recieving the following warning: "WARNING: Resources > drbd_asterisk,drbd_mysql violate uniqueness for parameter > "drbd_resource": "r0.res"" > Now the obvious thing to do is to change the resource name at the DRBD > level however, I assumed that the parameter uniqueness was bound to > the primitive? Only one resource per cluster should use this value for this attribute if it is marked globally-unique in the RA meta-information. Do yourself a favour and give the DRBD resources a meaningful name, how about "asterisk" and "mysql" ;-) > > My second "quick" question is, I like to use group + location to > single out services on specific nodes however, when creating clones: > > clone cloneDLM asteriskDLM meta globally-unique="false" interleave="true" > > I am recieving "ERROR: asteriskDLM already in use at ASTServices" > error? My question is, what are the benefits of using group + location > vs. clone + location? Once a resource is in a group it cannot be used for clones/MS any more ... though you can clone a group or make it MS. > With the latter I assue we will have a long list of location (one for > each primitive + node)? And with the former we do not have he meta > information > (globally-unique, and interleave)? I assume you want to manage a cluster filesystem ... so put all the dlm/o2cb/cluster-fs resources in a group and clone it (and use interleave for this clone) Regards, Andreas -- Need help with Pacemaker or DRBD? http://www.hastexo.com/now -------------- next part -------------- A non-text attachment was scrubbed... Name: signature.asc Type: application/pgp-signature Size: 286 bytes Desc: OpenPGP digital signature URL: <http://lists.linbit.com/pipermail/drbd-user/attachments/20111019/0d85fdce/attachment.pgp>