Yup. I've considered similar. Thanks! Regards. Mark K Vallevand Mark.Vallevand@xxxxxxxxxx May you live in interesting times, may you come to the attention of important people and may all your wishes come true. THIS COMMUNICATION MAY CONTAIN CONFIDENTIAL AND/OR OTHERWISE PROPRIETARY MATERIAL and is thus for use only by the intended recipient. If you received this in error, please contact the sender and delete the e-mail and its attachments from all computers. -----Original Message----- From: linux-cluster-bounces@xxxxxxxxxx [mailto:linux-cluster-bounces@xxxxxxxxxx] On Behalf Of Rick Stevens Sent: Thursday, April 03, 2014 04:52 PM To: linux clustering Subject: Re: Simple data replication in a cluster On 04/03/2014 01:58 PM, Vallevand, Mark K issued this missive: > I'm looking for a simple way to replicate data within a cluster. > > It looks like my resources will be self-configuring and may need to push > changes they see to all nodes in the cluster. The idea being that when > a node crashes, the resource will have its configuration present on the > node on which it is restarted. We're talking about a few kb of data, > probably in one file, probably text. A typical cluster would have > multiple resources (more than two), one resource per node and one extra > node. > > Ideas? > > Could I use the CIB directly to replicate data? Use cibadmin to update > something and sync? > > How big can a resource parameter be? Could a resource modify its > parameters so that they are replicated throughout the cluster? > > Is there a simple file replication Resource Agent? > > Drdb seems like overkill. If you're OK with it and it's a small group of files/directories, why not use something like inotifywait and have it run a script that rsyncs the altered files to the other nodes when the files change? I've done it before and it works pretty well. -- ---------------------------------------------------------------------- - Rick Stevens, Systems Engineer, AllDigital ricks@xxxxxxxxxxxxxx - - AIM/Skype: therps2 ICQ: 22643734 Yahoo: origrps2 - - - - Never eat anything larger than your head - ---------------------------------------------------------------------- -- Linux-cluster mailing list Linux-cluster@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/linux-cluster -- Linux-cluster mailing list Linux-cluster@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/linux-cluster
