Solaris free/open source clustering/load balance

[Subhodini Fernandes]

I am looking for some free/open source clustering software which I can
use on Solaris to load balance/fail over web server Tomcat. I have
done a google search but problem is that there are so many its often
confusing.

The requests will come to one single ip address which in turn will go
to any Tomcat web server that is free and the request will be routed
to a back end application (which is on another server).

Any suggestions will be highly appreciated.

Thanks,
Subho.

[Bertrand Hutin]

Subhodini Fernandes wrote:

> I am looking for some free/open source clustering software which I can
> use on Solaris to load balance/fail over web server Tomcat. I have
> done a google search but problem is that there are so many its often
> confusing.
>
> The requests will come to one single ip address which in turn will go
> to any Tomcat web server that is free and the request will be routed
> to a back end application (which is on another server).
>
> Any suggestions will be highly appreciated.
>
> Thanks,
> Subho.

this one: FreeHA - High Availability Daemon
[url]http://www.bolthole.com/freeha/[/url]

[Jean-Pierre Denis]

Hi,

Bertrand Hutin wrote:

> Subhodini Fernandes wrote:

> > I am looking for some free/open source clustering software which I can
> > use on Solaris to load balance/fail over web server Tomcat.

Have a look at linux-ha. [url]http://linuxha.trick.ca[/url] ( this is a new site and
it look better then [url]www.linux-ha.org[/url] )

" Although this is called the Linux-HA project, the software is highly
portable
and runs on FreeBSD and Solaris as well."

> > The requests will come to one single ip address which in turn will go
> > to any Tomcat web server that is free and the request will be routed
> > to a back end application (which is on another server).

This is exactly how heartbeat operate. When a node goes down or is
unreachable
all the resources are switching to the other node. When the master server
come back up
the resources switch back to the master server.

You can use a single IP per services so it's easy to watch the IP takeover.

I have some services that switch in less then 5 seconds.

--
Thanks,
JP

Jean-Pierre Denis
jp at msfree dot ca

[Dragan Cvetkovic]

Jean-Pierre Denis <jp@msfree_NOSPAM_.ca> writes:

> Hi,
>
> Bertrand Hutin wrote:
>
> Have a look at linux-ha. [url]http://linuxha.trick.ca[/url] ( this is a new site and
> it look better then [url]www.linux-ha.org[/url] )
>
> " Although this is called the Linux-HA project, the software is highly
> portable and runs on FreeBSD and Solaris as well."

They why call it Linux-HA? I guess lot of people were put off by its name
and classified it under YALP (yet another Linux-only product).

>

>> > The requests will come to one single ip address which in turn will go
>> > to any Tomcat web server that is free and the request will be routed
>> > to a back end application (which is on another server).

>
> This is exactly how heartbeat operate. When a node goes down or is
> unreachable
> all the resources are switching to the other node. When the master server
> come back up
> the resources switch back to the master server.

But the original request was for load balancing and you are talking about
fail-over. These are two different issues.

Bye, Dragan

--
Dragan Cvetkovic,

To be or not to be is true. G. Boole No it isn't. L. E. J. Brouwer

!!! Sender/From address is bogus. Use reply-to one !!!

[Jean-Pierre Denis]

Hi,

Dragan Cvetkovic wrote:

> Jean-Pierre Denis <jp@msfree_NOSPAM_.ca> writes:
>

> > Have a look at linux-ha. [url]http://linuxha.trick.ca[/url] ( this is a new site and
> > it look better then [url]www.linux-ha.org[/url] )
> >
> > " Although this is called the Linux-HA project, the software is highly
> > portable and runs on FreeBSD and Solaris as well."

>
> They why call it Linux-HA? I guess lot of people were put off by its name
> and classified it under YALP (yet another Linux-only product).

Probably because it was originally develop on linux.

> >> > The requests will come to one single ip address which in turn will go
> >> > to any Tomcat web server that is free and the request will be routed
> >> > to a back end application (which is on another server).

> >
> > This is exactly how heartbeat operate. When a node goes down or is
> > unreachable all the resources are switching to the other node.

> But the original request was for load balancing and you are talking about
> fail-over. These are two different issues.

AFAIK the original poster was looking for load balance/fail over :
" I am looking for some free/open source clustering software which I can
use on Solaris to load balance/fail over web server Tomcat."


JP

[Dragan Cvetkovic]

Jean-Pierre Denis <jp@msfree_NOSPAM_.ca> writes:

> Hi,
>
> Dragan Cvetkovic wrote:
>

>> Jean-Pierre Denis <jp@msfree_NOSPAM_.ca> writes:
>>

>> > Have a look at linux-ha. [url]http://linuxha.trick.ca[/url] ( this is a new site and
>> > it look better then [url]www.linux-ha.org[/url] )
>> >
>> > " Although this is called the Linux-HA project, the software is highly
>> > portable and runs on FreeBSD and Solaris as well."

>>
>> They why call it Linux-HA? I guess lot of people were put off by its name
>> and classified it under YALP (yet another Linux-only product).

>
> Probably because it was originally develop on linux.

Fair enough.

>

>> >> > The requests will come to one single ip address which in turn will go
>> >> > to any Tomcat web server that is free and the request will be routed
>> >> > to a back end application (which is on another server).
>> >
>> > This is exactly how heartbeat operate. When a node goes down or is
>> > unreachable all the resources are switching to the other node.

>

>> But the original request was for load balancing and you are talking about
>> fail-over. These are two different issues.

>
> AFAIK the original poster was looking for load balance/fail over :
> " I am looking for some free/open source clustering software which I can
> use on Solaris to load balance/fail over web server Tomcat."
>

Possible. But the above "The requests will come to one single ip address
which in turn will go to any Tomcat web server that is free" sounds like
load balancing to me.

Is there any other general purpose "load balancing" cluster software except
for Sun Cluster? That runs on Solaris, of course?

Bye, Dragan


--
Dragan Cvetkovic,

To be or not to be is true. G. Boole No it isn't. L. E. J. Brouwer

!!! Sender/From address is bogus. Use reply-to one !!!