Hi Thomas
Thank you for your patience.
I do not have knowledge of whether iPlanet webservers can be redundantly
clustered to front GF cluster.
I do hope someone from our LB team on the users list will be able to
comment on it.
Thanks
Shreedhar
On 1/16/13 3:42 AM, Thomas CATTY wrote:
> Re: Glassfish 3.1.2 and loadbalancer iPlanet webserver Hi Shreedhar,
> Hope you're doing well
> I wish the best for 2013.
> I am taking the liberty of asking you if you had (or your team) an
> idea for the second issue (below) I was coping (about 2 LB)
> It would be gorgeous.
>
> take care
> cheers
>
>
>
> Le 08/11/12 20:00, « Shreedhar Ganapathy »
> <shreedhar.ganapathy_at_oracle.com> a écrit :
>
> Hi Thomas
> Thanks for reaching out.
> I have put in some responses below. Hope these are helpful.
>
>
> On 11/8/12 2:47 AM, Thomas CATTY wrote:
>
>
> Glassfish 3.1.2 and loadbalancer iPlanet webserver Hi Shreedhar,
> Thanks for your brilliant topics about Glassfish, cluster and
> other things !
>
> I've been using Webserver iPlanet 7 as a loadbalancing with
> Glassfish 3.1.2. It works fine. thanks again for all the clear
> docs or videos I found on the topic.
> I've 3 questions :
>
> 1. It is said to be used as a loadbalancer but what I notice
> is that all the shown examples deal with sessions failover, ie
> when e instance in a cluster fails, another one is
> automatically the relay. Great.
> But what about the real load balance ? what happens when
> there is a real load, is it taken into account without any
> more configurations ?
>
>
> The default algorithm used by the LB Plugin is round robin. One
> can write one's own algorithm by modifying the loadbalancer.h file.
>
>
> *
> _2_. In production, I'll have 2 servers with 128Go RAM exach,
> 2To storage...They will be virtualized.
> For example, on the first, I'll have a VM with iPlanet
> server 7 acting as a loadbalancer, on a second VM, my
> application server Glassfish, on a third my sql Cluster...
> And what I would like to do is : on the second server
> where there will also be a glassfish (for a cluster with the
> first one), some sql nodes...I would like a second
> iPlanet server LB doing the same like the first one
> but as a slave if the first one fails ? is is
> possible to do that with a sort of "hearbeat" link between
> them ? it would be great !
>
> *
>
> I believe it is possible to do so - but am not sure of the steps
> involved. I have cc'd our GlassFish users list so someone from LB
> team can comment. Moreover, this discussion will be useful for
> other community members .
>
>
>
> 3. when everything is OK in my Glassfish and iPlanet
> webserver configuration, i even cope with this little problem
> : when I deploy or redeploy a high available application in my
> cluster linked to the loadbalancer, I've noticed (by chance!
> 'cause it didn't work) that I had to "manually" apply the
> changes in the loadbalancer.xml file on iPlanet : "manually"
> means that the "apply-http-lb-changes" seems to work from my
> asadmin console but on the iPlanet I have a message telling me
> that the configuration has changed and if I want to apply or
> not... without that manual confirmation it wouldn't work.
> Hope it was clear ;-) So how can I avoid that ? any parameter
> to turn on ?
> (I've yet a well configured SSL connection between them )
>
>
> Could you look into the HA Admin Guide - it should have all the
> details on configuring the GF Domain Server and IPlanet Web Server
> to auto apply LB config changes.
> http://docs.oracle.com/cd/E18930_01/html/821-2426/geobp.html#gktmr
>
> hth
> Shreedhar
>
>
>
> Thanks in advance for all !
>
> --
> Thomas CATTY
> 06.75.67.24.71
>
> "/There are three ways to get something done; do it yourself,
> hire someone,
> or forbid your kids to do it./" (/Mona Crane)
>
> /
>
>
>
>
> --
> Thomas CATTY
> 06.75.67.24.71
>
> "/There are three ways to get something done; do it yourself, hire
> someone,
> or forbid your kids to do it./" (/Mona Crane)
> /