Thanks James. I don't know much about python, but it seems simple enough for my purposes. Greetings, Marcos David -----Original Message----- From: linux-cluster-bounces@xxxxxxxxxx [mailto:linux-cluster-bounces@xxxxxxxxxx] On Behalf Of James Parsons Sent: quarta-feira, 15 de Novembro de 2006 19:03 To: linux clustering Subject: Re: ccs_test tool Marcos Gil Ferreira David wrote: >Is the result will be the stdin to another app, no problem running as >root. > >Guess will have to learn a bit about python... > > >Thanks >Marcos David > >-----Original Message----- >From: linux-cluster-bounces@xxxxxxxxxx >[mailto:linux-cluster-bounces@xxxxxxxxxx] On Behalf Of James Parsons >Sent: quarta-feira, 15 de Novembro de 2006 17:42 >To: linux clustering >Subject: Re: ccs_test tool > >Marcos Gil Ferreira David wrote: > > > >>Hello, >> >>I have a two-node cluster with several services running on it. Each of >> >> > > > >>these services needs an ip address that configured in the cluster (a >>Cluster IP Address). >> >>My problem is that in order for some of our applications to function >>properly I need to know the ip address that is assigned to a given >>service. >> >>Example: >> >>Extracted from /etc/cluster/cluster.conf: >> >>.... >> >><service autostart="1" domain="cluster0" name="MySQL"> >> >><fs ref="shared_mysql"> >> >><ip ref="172.18.57.8"> >> >><script ref="mysql"/> >> >></ip> >> >></fs> >> >></service> >> >>... >> >>Is there any application (perhaps ccs_test) that can give me the ip >>address assigned to the MySQL service (or any other service), without >>dumping the entire cluster.conf on console? >> >> >> >No, but a python script could pull it out for you in prolly less than >20 lines. It would have to run as root, though, in order to read the >conf file. Do you need this to work in an automated fashion as stdin to >another app? > >-J > > > Ok...23 lines...you will need to add some error checking :) #!/usr/bin/python from xml.dom import minidom, Node def main(): try: parent = minidom.parse("/etc/cluster/cluster.conf") except IOError, e: pass #Do something meaningful here nodes = parent.firstChild.getElementsByTagName('fs') for node in nodes: if node.hasAttribute('ref'): ref = node.getAttribute('ref') if ref.strip() == 'shared_mysql': ipnodes = node.getElementsByTagName('ip') #There had better be only one! addr = ipnodes[0].getAttribute('ref') print addr else: pass #Do something meaningful here as well... if __name__ == "__main__": main() -- 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
