[Pacemaker] Floating IP Address

[Andrew Beekhof]

On 23/07/2013, at 2:39 AM, Gopalakrishnan N <gopalakrishnan.an at gmail.com> wrote:

> Now I got one more issue, when I stop the complete pacemaker application, the other one node automatically projects me the http service. 
> 
> But when I stop the http service alone in one node which is pointing to ClusterIP, the page is not opening. 

Something looks quite wrong here.  Config?

> 
> Basically, the crm_mon -1 shows it is always pointed to node1,
> 
> [root at pcmk-2 ~]# crm_mon -1
> Last updated: Mon Jul 22 20:33:47 2013
> Last change: Sat Jul 20 02:21:28 2013 via crm_shadow on pcmk-2
> Stack: cman
> Current DC: pcmk-1 - partition with quorum
> Version: 1.1.8-7.el6-394e906
> 3 Nodes configured, 2 expected votes
> 5 Resources configured.
> 
> 
> Online: [ pcmk-1 pcmk-2 ]
> OFFLINE: [ localhost.localdomain ]
> 
>  Clone Set: WebIP [ClusterIP] (unique)
>      ClusterIP:0        (ocf::heartbeat:IPaddr2):       Started pcmk-1
>      ClusterIP:1        (ocf::heartbeat:IPaddr2):       Started pcmk-1
>  Clone Set: WebSiteClone [WebSite]
>      Started: [ pcmk-1 ]
>      Stopped: [ WebSite:1 WebSite:2 ]
> 
> So the problem is when I stop http service in pcmk-1, its not point automatically to node2 i.e.pcmk-2.
> 
> I didn't configured DRBD and GFS2 filesystem. Will that matters?
> 
> Regards
> 
> 
> On Sat, Jul 20, 2013 at 4:35 AM, Gopalakrishnan N <gopalakrishnan.an at gmail.com> wrote:
> Finally did a test setup without DRBD its working fine with Apache services, now need to work out for my application, my application works with Apache Tomcat. 
> 
> Will enjoy my weekend.... :D
> 
> 
> On Fri, Jul 19, 2013 at 2:26 AM, Gopalakrishnan N <gopalakrishnan.an at gmail.com> wrote:
> Thank you for your valuable information. ..:)
> 
> On 19 Jul 2013 02:09, "Digimer" <lists at alteeve.ca> wrote:
> Be sure to enable and use stonith!
> 
> This is extremely important to avoid split-brains, and something many people skip at first, not properly appreciating the important role stonith plays.
> 
> digimer
> 
> On 18/07/13 16:29, Gopalakrishnan N wrote:
> ok thanks.. then let me start with basic functional Active/Passive node
> sync with example... (Apache)
> 
> Once again thanks...
> 
> 
> On Fri, Jul 19, 2013 at 1:54 AM, Digimer <lists at alteeve.ca
> <mailto:lists at alteeve.ca>> wrote:
> 
>     If periodic rsync does the job, then no, you don't need drbd.
> 
> 
>     On 18/07/13 16:12, Gopalakrishnan N wrote:
> 
>         Thanks for your comments...
> 
>         Ok better I can do rync periodically in crontab.
> 
>         I will take up with crm itself, and still i have doubt that do I
>         need to
>         use DRBD...
> 
> 
> 
> 
>         On Fri, Jul 19, 2013 at 1:34 AM, Digimer <lists at alteeve.ca
>         <mailto:lists at alteeve.ca>
>         <mailto:lists at alteeve.ca <mailto:lists at alteeve.ca>>> wrote:
> 
>              On 18/07/13 15:56, Gopalakrishnan N wrote:
> 
>                  And I have some configuration files where it has to sync
>                  automatically
>                  and when the primary goes down, the secondary has to
>         come UP
>                  automatically.
> 
> 
>              This confuses me a little. I don't use asterix or MySQL, so
>         I don't
>              know what they need. If you need to keep files in sync
>         between the
>              nodes at all times, you need shared storage with a cluster file
>              system. If you only change the files periodically though,
>         you can
>              manually rsync the updated configs yourself and avoid this.
> 
> 
>              --
>              Digimer
>              Papers and Projects: https://alteeve.ca/w/
>              What if the cure for cancer is trapped in the mind of a person
>              without access to education?
> 
> 
> 
> 
>     --
>     Digimer
>     Papers and Projects: https://alteeve.ca/w/
>     What if the cure for cancer is trapped in the mind of a person
>     without access to education?
> 
> 
> 
> 
> -- 
> Digimer
> Papers and Projects: https://alteeve.ca/w/
> What if the cure for cancer is trapped in the mind of a person without access to education?
> 
> 
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