[Pacemaker] Floating IP Address

[Gopalakrishnan N]

yes I feel the config has to be bit improved with Master / Salve concept,
or else what happens is when one server goes down the pointing one, the
other one is not propagated.

For this am trying to install DRBD and GFS, but the packages are missing,
am trying to get the rpm to install the same.

Any other comments would be appreciated.

Thanks.


On Thu, Jul 25, 2013 at 8:10 AM, Andrew Beekhof <andrew at beekhof.net> wrote:

>
> 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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