Hi Geoff,
Thanks a lot for your explanations. So when testing with a 2 nodes management servers, i had split brain scenario :/ When installing the management server, did i do the rights things ? In my case 192.168.0.100 (VIP in netscaler, load balancing the ports you listed above) with a service group including the 2 management server nodes (192.168.0.10 for the first and 192.168.0.11 for the secondary) and a mysql server with 192.168.0.200 For the first node (192.168.0.10) i've done : cloudstack-setup-databases cloud:[email protected] <cloud%[email protected]> --deploy-as=root:mypassroot -e file -m mypassphrase -k mypassphrase -i 192.168.0.100 The second node (192.168.0.11) was deployed with cloudstack-setup-databases cloud:[email protected] <cloud%[email protected]> -e file -m mypassphrase -k mypassphrase -i 192.168.0.100 Is it alright, or is this what did a split brain scenario ? Thanks a lot four your responses. Regards, Benoit. 2014-10-23 10:43 GMT+02:00 Geoff Higginbottom < [email protected]>: > Hi Benoit > > When running more than one CloudStack Management Server you need to put a > load balancer in front of them. This load balancer (or ideally pair of HA > load balancers) need to manage the following ports > > 8250 - This is the port the System VMs use when communicating with the > management servers, and they use the address specified in the 'host' global > settings. > > 8080 - Access to the Web UI > > 8096 (or a port of your choosing) - Optional - only required is you are > using the unauthenticated API port > > You can look in the 'cloud.hosts' table in the DB and check out the > 'status' and 'mgmt_server_id' columns, the latter is the ID of the > management server which is responsible for managing the System VM or > Hypervisor. > > One last point, you need to ensure you have set global settings > agent.lb.enable to true to enable the load balancing of System VMs and > Hypervisors across multiple Management Servers. > > Regards > > Geoff Higginbottom > > D: +44 20 3603 0542 | S: +44 20 3603 0540 | M: +447968161581 > > [email protected] > > -----Original Message----- > From: benoit lair [mailto:[email protected]] > Sent: 23 October 2014 08:49 > To: [email protected] > Subject: Re: [ACS43][MGMT Server][Load Balancing] > > Any advice ? Any feedback ? Does somebody already did that ? > > Thanks for your responses. > > 2014-10-13 10:51 GMT+02:00 benoit lair <[email protected]>: > > > Hello, > > > > > > Is there somebody already accomplished some load balancing on the > > management app server ? > > > > > > > > Thanks for your responses. > > > > Regards. > > > > 2014-10-09 16:24 GMT+02:00 benoit lair <[email protected]>: > > > >> Here are the logs entries i have in the other mgmt node : > >> > >> DEBUG [c.c.a.m.ClusteredAgentManagerImpl] > >> (AgentManager-Handler-8:null) Seq 1-289341441: MgmtId > >> 104425904713066: Resp: Routing to peer > >> > >> 2014-10-09 16:21 GMT+02:00 benoit lair <[email protected]>: > >> > >>> What i was thinking of.. > >>> > >>> Here are the logs entries in one of my mgmt server : > >>> > >>> 2014-10-09 15:47:27,451 ERROR [c.c.c.ClusterManagerImpl] > >>> (Cluster-Heartbeat-1:cx-71073990) We have detected that at least one > >>> management server peer reports tat this management server is down, > >>> perform active fencing to avoid split-brain ituation > >>> > >>> So this one has been shutdown. How to recover my 2 mgmt nodes in > >>> normal state ? > >>> > >>> Thanks. > >>> Regards, Benoit > >>> > >>> 2014-10-09 16:20 GMT+02:00 benoit lair <[email protected]>: > >>> > >>>> Hello, > >>>> > >>>> > >>>> I would like to do some load balancing on the mgmt server, i would > >>>> like to know if i am on the good way : > >>>> > >>>> I installed Two management servers. > >>>> > >>>> The first with the "deploy-as" in the command > >>>> cloudstack-setup-databases with the netscalerlbip as the management > >>>> server > >>>> : > >>>> > >>>> cloudstack-setup-databases cloud:[email protected] > >>>> --deploy-as=root:mypassroot -e file -m mypassphrase -k mypassphrase > >>>> -i netscalerlbip > >>>> > >>>> The second node was deployed with > >>>> cloudstack-setup-databases cloud:[email protected] -e file -m > >>>> mypassphrase -k mypassphrase -i netscalerlbip > >>>> > >>>> So my netscaler is doing load balancing on the 2 nodes availables > >>>> accross netscalerlbip. > >>>> > >>>> I have confgured the "host" global parameter with the netscalerlbip > >>>> as ip and restarted the 2 mgmt servers. > >>>> > >>>> How to be sure that my mgmts servers are working correctly ? Am i > >>>> sure not to have split brain ? > >>>> > >>>> Thanks for your responses. > >>>> > >>>> Regards, > >>>> Benoit > >>>> > >>>> > >>> > >> > > > Find out more about ShapeBlue and our range of CloudStack related services > > IaaS Cloud Design & Build< > http://shapeblue.com/iaas-cloud-design-and-build//> > CSForge – rapid IaaS deployment framework<http://shapeblue.com/csforge/> > CloudStack Consulting<http://shapeblue.com/cloudstack-consultancy/> > CloudStack Infrastructure Support< > http://shapeblue.com/cloudstack-infrastructure-support/> > CloudStack Bootcamp Training Courses< > http://shapeblue.com/cloudstack-training/> > > This email and any attachments to it may be confidential and are intended > solely for the use of the individual to whom it is addressed. Any views or > opinions expressed are solely those of the author and do not necessarily > represent those of Shape Blue Ltd or related companies. 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