How to send some requests to all tomcat cluster nodes from loadbalancer

[Orhan Karasakal <or...@gmail.com>]

Hi,

I have a distrubuted cluster system. I have set up apache server and set
loadbalancing (mod_jk) conditions. And also sticky session is true mode. Among
nodes, there is no multicasting

Is it possible that could I send some special requests (after request
header control) or broadcast message to all tomcat cluster nodes ? Is there
any rule or method ?

Normally every request goes one node but for some special url, I want to
send these requests to all cluster nodes. For example for some url,
application should not be seen to user.

Thanks for your help,
Orhan Karasakal

Re: How to send some requests to all tomcat cluster nodes from loadbalancer

[Orhan Karasakal <or...@gmail.com>]

Hi,
Is not it possible that send ping from mod_jk to all tomcat nodes ? There
is no need response from all nodes back to requester.
It can be set status, for example when nodes get request for special url,
status checked ok
All I want that all nodes informed from special url request without
messaging among nodes

I have configured uriworkermap.properties, there are 3 status(active,
disabled, stopped) for loadbalancer nodes.
Is there any solution by configuring uriworkermap.properties or
workers.properties?

For solution of this problem, suggestingg alternatives of mod_jk ?

Thanks for your help.
Regards,

On Wed, Sep 12, 2012 at 3:11 PM, Pid <pi...@pidster.com> wrote:

> On 12/09/2012 12:45, Orhan Karasakal wrote:
> > Hi,
> >
> > I have a distrubuted cluster system. I have set up apache server and set
> > loadbalancing (mod_jk) conditions. And also sticky session is true mode.
> Among
> > nodes, there is no multicasting
> >
> > Is it possible that could I send some special requests (after request
> > header control) or broadcast message to all tomcat cluster nodes ? Is
> there
> > any rule or method ?
> >
> > Normally every request goes one node but for some special url, I want to
> > send these requests to all cluster nodes. For example for some url,
> > application should not be seen to user.
> >
> > Thanks for your help,
> > Orhan Karasakal
>
> That can't be supported by HTTP - how would the protocol handle sending
> more than one HTTP response back to the requestor?
>
> Design an alternative solution that uses a messaging system (perhaps JMS
> or AMQP), or in which any member can relay the payload of the request to
> other nodes one at a time.
>
>
> p
>
>
> --
>
> [key:62590808]
>
>

Re: How to send some requests to all tomcat cluster nodes from loadbalancer

[Orhan Karasakal <or...@gmail.com>]

Thanks for your help and reply

On Wed, Sep 12, 2012 at 3:11 PM, Pid <pi...@pidster.com> wrote:

> On 12/09/2012 12:45, Orhan Karasakal wrote:
> > Hi,
> >
> > I have a distrubuted cluster system. I have set up apache server and set
> > loadbalancing (mod_jk) conditions. And also sticky session is true mode.
> Among
> > nodes, there is no multicasting
> >
> > Is it possible that could I send some special requests (after request
> > header control) or broadcast message to all tomcat cluster nodes ? Is
> there
> > any rule or method ?
> >
> > Normally every request goes one node but for some special url, I want to
> > send these requests to all cluster nodes. For example for some url,
> > application should not be seen to user.
> >
> > Thanks for your help,
> > Orhan Karasakal
>
> That can't be supported by HTTP - how would the protocol handle sending
> more than one HTTP response back to the requestor?
>
> Design an alternative solution that uses a messaging system (perhaps JMS
> or AMQP), or in which any member can relay the payload of the request to
> other nodes one at a time.
>
>
> p
>
>
> --
>
> [key:62590808]
>
>

Re: How to send some requests to all tomcat cluster nodes from loadbalancer

[Pid <pi...@pidster.com>]

On 12/09/2012 12:45, Orhan Karasakal wrote:
> Hi,
> 
> I have a distrubuted cluster system. I have set up apache server and set
> loadbalancing (mod_jk) conditions. And also sticky session is true mode. Among
> nodes, there is no multicasting
> 
> Is it possible that could I send some special requests (after request
> header control) or broadcast message to all tomcat cluster nodes ? Is there
> any rule or method ?
> 
> Normally every request goes one node but for some special url, I want to
> send these requests to all cluster nodes. For example for some url,
> application should not be seen to user.
> 
> Thanks for your help,
> Orhan Karasakal

That can't be supported by HTTP - how would the protocol handle sending
more than one HTTP response back to the requestor?

Design an alternative solution that uses a messaging system (perhaps JMS
or AMQP), or in which any member can relay the payload of the request to
other nodes one at a time.


p


-- 

[key:62590808]