Thread: RE: [SSI-users] Multiple cluster IP's
Brought to you by:
brucewalker,
rogertsang
From: Walker, B. J <bru...@hp...> - 2005-03-18 17:33:14
|
HA-LVS within OpenSSI was designed to handle a restricted form of "multiple CVIPs" but to my knowledge no one has done it yet (so somewhat untested). There are some severe restrictions, even if it does work - the directors and realservers for each cvip must be completely different (no overlap at all) (I believe this limitation is documented in readme.ipvs). If, given this restriction, you are still interested in trying it, I would suggest the following steps: A. with a 2 node cluster, set one node to have one cvip and another node to have the other (no backup directors or realservers (the director is implicitly a realserver); with this configuration, try to boot; see if ha-lvs starts on each node and when they are up, do an ip addr on each node and see if the cvip is aliased to the interfaces on each node. Then try ipvsadm -L on each node and capture the output. B. if all looks well add 2 more nodes to the cluster and put one in each cvip. Reboot everything (just to be safe) and repeat the steps to see if you have 2 cvips, both load balancing. C. finally you can add backup directors to each cvip, again without having any node listed for more than one cvip. If something fails along the way, capture all the output (cvip.conf, ip addr output, ipvsadm -L output, etc.) and send that along and Aneesh or myself will try to answer. Bruce > -----Original Message----- > From: ssi...@li...=20 > [mailto:ssi...@li...] On=20 > Behalf Of Stefan Fuhrmann > Sent: Friday, March 18, 2005 8:41 AM > To: ssi...@li... > Subject: [SSI-users] Multiple cluster IP's >=20 >=20 > Hello all, > I have a 2 node cluster with drbd under debian running. > My purpose is to have a hosting environment on the cluster.=20 > Some applications have to be run there apache,mysql, postfix... > For this hosting environment with multiple domains I need multiple > cluster- IP's . > I have raed readme.cvip and some under linuxvirtualserver.org but I > can't find the necassary information, how to set up multiple IP's for > the cluster. Maybe I have something overlooked? > I' ve thought that addidional IP's has to be in cvip.conf but=20 > this dont > work. >=20 > Can someone help me with this issue? >=20 > -tia > -stefan >=20 >=20 >=20 >=20 >=20 > ------------------------------------------------------- > SF email is sponsored by - The IT Product Guide > Read honest & candid reviews on hundreds of IT Products from=20 > real users. > Discover which products truly live up to the hype. Start reading now. > http://ads.osdn.com/?ad_ide95&alloc_id=14396&op=3Dick > _______________________________________________ > Ssic-linux-users mailing list > Ssi...@li... > https://lists.sourceforge.net/lists/listinfo/ssic-linux-users >=20 |
From: Walker, B. J <bru...@hp...> - 2005-03-21 21:27:58
|
I told you that NONE of the nodes can be the same for the 2 CVIPS and you have node 1 and node 2 for each cvip. This is not going to work and I told you that before. =20 Bruce > -----Original Message----- > From: Stefan Fuhrmann [mailto:St...@fu...]=20 > Sent: Monday, March 21, 2005 11:47 AM > To: Walker, Bruce J; ssi...@li... > Subject: AW: [SSI-users] Multiple cluster IP's >=20 >=20 > Hello all, >=20 > > If, given this restriction, you are still interested in=20 > > trying it, I would suggest the following steps: > > A. with a 2 node cluster, set one node to have one cvip and=20 > > another node to have the other (no backup directors or=20 > > realservers (the director is implicitly a realserver); with=20 > > this configuration, try to boot; see if ha-lvs starts on=20 > > each node and when they are up, do an ip addr on each node=20 > > and see if the cvip is aliased to the interfaces on each node. > > Then try ipvsadm -L on each node and capture the output. > >=20 > The problem is that I configured drbd to sync the whole disk, so I > can't do different cvip.conf's. > But I played arround with the cvip.conf. Have a look: >=20 > <?xml version=3D"1.0"?> > <cvips> > <routing>DR</routing> > <cvip> > <ip_addr>192.168.7.100</ip_addr> >=20 > <director_node> > <node_num>1</node_num> > <garp_interface>eth0</garp_interface> > <sync_interface>eth0</sync_interface> > </director_node> > <director_node> > <node_num>2</node_num> > <garp_interface>eth0</garp_interface> > <sync_interface>eth0</sync_interface> > </director_node> > <real_server_node> > <node_num>1</node_num> > </real_server_node> > <real_server_node> > <node_num>2</node_num> > </real_server_node> >=20 > </cvip> > =20 > <cvip> > <ip_addr>192.168.7.103</ip_addr> >=20 > <director_node> > <node_num>1</node_num> > <garp_interface>eth0</garp_interface> > <sync_interface>eth0</sync_interface> > </director_node> > <director_node> > <node_num>2</node_num> > <garp_interface>eth0</garp_interface> > <sync_interface>eth0</sync_interface> > </director_node> > <real_server_node> > <node_num>1</node_num> > </real_server_node> > <real_server_node> > <node_num>2</node_num> > </real_server_node> >=20 > </cvip> > </cvips> >=20 >=20 > I have all IP's clusterwide when I do a reboot after editing=20 > cvip.conf. > But that is bad for production use. I tried manually restart=20 > ha-lvs and > inetd but this don't work. >=20 > Is there a way to load the cvip.conf without clusterwide rebooting? >=20 > At last It is surly a good thing to have an easy way to configure > multiple cluster-IP's. >=20 > But okay it works so . But I need a possibility to load the=20 > IP's without > rebooting. > Is there a chance? >=20 > -tia > -stefan >=20 >=20 > > > -----Original Message----- > > > From: ssi...@li... > > > [mailto:ssi...@li...] On=20 > Behalf Of=20 > > > Stefan Fuhrmann > > > Sent: Friday, March 18, 2005 8:41 AM > > > To: ssi...@li... > > > Subject: [SSI-users] Multiple cluster IP's > > >=20 > > >=20 > > > Hello all, > > > I have a 2 node cluster with drbd under debian running. > > > My purpose is to have a hosting environment on the cluster.=20 > > > Some applications have to be run there apache,mysql, postfix... > > > For this hosting environment with multiple domains I need multiple > > > cluster- IP's . > > > I have raed readme.cvip and some under=20 > linuxvirtualserver.org but I=20 > > > can't find the necassary information, how to set up=20 > > multiple IP's for=20 > > > the cluster. Maybe I have something overlooked? > > > I' ve thought that addidional IP's has to be in cvip.conf=20 > but this=20 > > > dont work. > > >=20 > > > Can someone help me with this issue? > > >=20 > > > -tia > > > -stefan > > >=20 > > >=20 > > >=20 > > >=20 > > >=20 > > > ------------------------------------------------------- > > > SF email is sponsored by - The IT Product Guide Read honest=20 > > & candid=20 > > > reviews on hundreds of IT Products from real users. > > > Discover which products truly live up to the hype. Start=20 > > reading now. > > > http://ads.osdn.com/?ad_ide95&alloc_id=14396&op=3Dick > > > _______________________________________________ > > > Ssic-linux-users mailing list > > > Ssi...@li... > > > https://lists.sourceforge.net/lists/listinfo/ssic-linux-users > > >=20 > >=20 >=20 |