[Pacemaker] Alternative communication engine to corosync (etcd/consul/zookeeper/doozerd)

2014-06-19 Thread Patrick Hemmer
After the demise of the old heartbeat service, and the switch to corosync as the primary (sole) method of communication between nodes, has there ever been any consideration into using services such as etcd, consul, zookeeper, or doozerd? These alternative communication engines offer some stuff tha

Re: [Pacemaker] CMAN with multiple networks for HA communication

2014-06-19 Thread Teerapatr Kittiratanachai
For IP address issue, I will find about that concern and take responsibility on risk for now. For multiple altname's, as I found in http://rpm.pbone.net/index.php3/stat/45/idpl/8711809/numer/5/nazwa/cman it said that > > Multi-home configuration Up to 9 altnames (10 interfaces in total) can

Re: [Pacemaker] CMAN with multiple networks for HA communication

2014-06-19 Thread Digimer
Using raw IPs is not recommended. I remember Chrissie explaining the reason why a couple of years ago, but I can't remember that reasoning right not. As for multiple altname's, that is not possible. Corosync's RRP (redundant ring protocol) supports a primary and backup ring only. digimer On

Re: [Pacemaker] CMAN with multiple networks for HA communication

2014-06-19 Thread Teerapatr Kittiratanachai
I just already try this. It work !! I don't understand that why there is no example in the Internet using IP address as node name or altname. But I cann't add more than one altname, can you give me the xml example or the ccs command ? Thanks --Te On Fri, Jun 20, 2014 at 9:56 AM, Digimer wrote:

Re: [Pacemaker] CMAN with multiple networks for HA communication

2014-06-19 Thread Digimer
Strictly speaking, it might be possible, but I haven't tried it myself and I certainly don't recommend it. On 19/06/14 10:29 PM, Teerapatr Kittiratanachai wrote: Great, It work. Is it possible to use IP address as node name or altname? But I guess not. --Te On Thu, Jun 19, 2014 at 9:20 PM, D

Re: [Pacemaker] CMAN with multiple networks for HA communication

2014-06-19 Thread Teerapatr Kittiratanachai
Great, It work. Is it possible to use IP address as node name or altname? But I guess not. --Te On Thu, Jun 19, 2014 at 9:20 PM, Digimer wrote: > On 19/06/14 08:00 AM, Teerapatr Kittiratanachai wrote: >> >> Dear List, >> >> According to CMAN identify each node in cluster by hostname. >> So I co

Re: [Pacemaker] CMAN with multiple networks for HA communication

2014-06-19 Thread Digimer
On 19/06/14 08:00 AM, Teerapatr Kittiratanachai wrote: Dear List, According to CMAN identify each node in cluster by hostname. So I configure the IP address in /etc/hosts file as below. ... 172.16.7.1node00.example.com 172.16.7.2node01.example.com ... So the corosync member show as bel

[Pacemaker] CMAN with multiple networks for HA communication

2014-06-19 Thread Teerapatr Kittiratanachai
Dear List, According to CMAN identify each node in cluster by hostname. So I configure the IP address in /etc/hosts file as below. ... 172.16.7.1node00.example.com 172.16.7.2node01.example.com ... So the corosync member show as below [root@node00 ~]# corosync-objctl | grep member runtim

Re: [Pacemaker] SOLVED: node is unable to join cluster after upgrade (crmd dies)

2014-06-19 Thread Lars Marowsky-Bree
On 2014-06-18T21:49:51, "Krause, Markus" wrote: > as I noticed that some permissions on the first node (sql01a) looked „weird“ > I decided to reinstall the whole system on this node and after copying all > the configuration from the second host everything is working as expected > without furth