On Mon, May 16, 2011 at 11:18 AM, Anjana Fernando <anj...@wso2.com> wrote:
> Hi,
>
> Yeah, but from the usability point of view also, scripting the server
> startup wont be much of an user-friendly thing to do I guess,
You need to script the server startup only of you want to enforce some
startup order. For most scenarios you don't need that. If you want to setup
a simple DSS+ESB scenario on the same machine for a quick demo it doesn't
matter which starts up first.
> and IMHO, the dynamic port assignment is too unpredictable to be used in a
> consistent manner, where if we use something similar to what I suggested, it
> will either succeed or the server will fail to startup.
If you need consistency then you can go through the trouble of setting
distinct port numbers in config files. The solution suggested here is just a
usability thing - to make the simple case simpler. If I want to try out a
simple ESB cluster I don't care which one takes which port number.
> Also, the extension mechanism as you mentioned won't be guaranteed to
> support in every library we use :) ..
>
I agree this is a bit problematic. But we can always find a way.
Thanks,
Hiranya
This
>
> Cheers,
> Anjana.
>
>
> On Mon, May 16, 2011 at 11:12 AM, Hiranya Jayathilaka <hira...@wso2.com>wrote:
>
>> Hi,
>>
>> On Mon, May 16, 2011 at 11:05 AM, Anjana Fernando <anj...@wso2.com>wrote:
>>
>>> Hi,
>>>
>>> On Mon, May 16, 2011 at 10:48 AM, Hiranya Jayathilaka
>>> <hira...@wso2.com>wrote:
>>>
>>>>
>>>>
>>>> On Mon, May 16, 2011 at 10:40 AM, Anjana Fernando <anj...@wso2.com>wrote:
>>>>
>>>>> Hi Hiranya,
>>>>>
>>>>> On Mon, May 16, 2011 at 9:51 AM, Hiranya Jayathilaka <hira...@wso2.com
>>>>> > wrote:
>>>>>
>>>>>>
>>>>>>
>>>>>> On Mon, May 16, 2011 at 7:33 AM, Amila Suriarachchi
>>>>>> <am...@wso2.com>wrote:
>>>>>>
>>>>>>>
>>>>>>>
>>>>>>> On Sun, May 15, 2011 at 10:19 PM, Afkham Azeez <az...@wso2.com>wrote:
>>>>>>>
>>>>>>>> This will be a great usability enhancement. People will be able to
>>>>>>>> startup multiple carbon servers without changing anything. Everything
>>>>>>>> will
>>>>>>>> work OOTB.
>>>>>>>
>>>>>>>
>>>>>>> I think it depends on the requirement. For me most of the time I need
>>>>>>> to run an ESB, DSS, Rules in order to do some integration testing. In
>>>>>>> this
>>>>>>> case ESB proxies should know the port addresses of the DSS, Rules. So
>>>>>>> random
>>>>>>> port generation won't work for such senarios.
>>>>>>>
>>>>>>
>>>>>> Most of the time you will start up all the servers before start
>>>>>> configuring stuff. So by the time you create the proxy, DSS will be up
>>>>>> and
>>>>>> running and you will know the endpoint. We log these information at
>>>>>> startup
>>>>>> and if needed it can be found from the management console as well.
>>>>>>
>>>>>
>>>>> I'm not sure if everyone does that .. that is startup all the servers
>>>>> before configuring, also another problem is, your approach will require to
>>>>> start the servers in a specific order .. it's a first come-first served
>>>>> approach as I see. So in the second time around, if you start the servers
>>>>> in
>>>>> a different order, the server ports will be totally different.
>>>>>
>>>>
>>>> Not a problem IMO. You can always script server start up to maintain
>>>> order.
>>>>
>>>>
>>>>>
>>>>> Also, as for the common utils method you suggested for opening a
>>>>> socket, this will require we always hack into the code that we use, for
>>>>> example, Qpid code and LDAP server and so on, and if in the future, if we
>>>>> have a dependency which we don't customise the code, like, if we just have
>>>>> an orbit bundle which points to the official library directly, we can't
>>>>> change the code.
>>>>>
>>>>
>>>> This is a valid concern. But most products allow some level of
>>>> extensions in this space. Axis2 has the concept of AxisConfigurator for an
>>>> example.
>>>>
>>>
>>> I think we are making things a bit complicated to do a simple thing :) ..
>>>
>>
>> Well, usability matters :)
>>
>> Thanks,
>> Hiranya
>>
>>
>>>
>>> Cheers,
>>> Anjana.
>>>
>>>
>>>>
>>>> Thanks,
>>>> Hiranya
>>>>
>>>>
>>>>>
>>>>> Cheers,
>>>>> Anjana.
>>>>>
>>>>>
>>>>>>
>>>>>> Thanks,
>>>>>> Hiranya
>>>>>>
>>>>>>
>>>>>>>
>>>>>>> thanks,
>>>>>>> Amila.
>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>> On Sun, May 15, 2011 at 10:17 PM, Afkham Azeez <az...@wso2.com>wrote:
>>>>>>>>
>>>>>>>>> In Tomcat, the following method is used when certain ports need to
>>>>>>>>> be used;
>>>>>>>>>
>>>>>>>>> protected int bind(ServerSocket socket, int portstart, int retries)
>>>>>>>>> throws IOException {
>>>>>>>>> InetSocketAddress addr = null;
>>>>>>>>> while ( retries > 0 ) {
>>>>>>>>> try {
>>>>>>>>> addr = new InetSocketAddress(getBind(), portstart);
>>>>>>>>> socket.bind(addr);
>>>>>>>>> setPort(portstart);
>>>>>>>>> log.info("Receiver Server Socket bound to:"+addr);
>>>>>>>>> return 0;
>>>>>>>>> }catch ( IOException x) {
>>>>>>>>> retries--;
>>>>>>>>> if ( retries <= 0 ) {
>>>>>>>>> log.info("Unable to bind server socket
>>>>>>>>> to:"+addr+" throwing error.");
>>>>>>>>> throw x;
>>>>>>>>> }
>>>>>>>>> portstart++;
>>>>>>>>> try {Thread.sleep(25);}catch( InterruptedException
>>>>>>>>> ti){Thread.interrupted();}
>>>>>>>>> retries = bind(socket,portstart,retries);
>>>>>>>>> }
>>>>>>>>> }
>>>>>>>>> return retries;
>>>>>>>>> }
>>>>>>>>>
>>>>>>>>> We can provide such a util method and whoever wants to open ports,
>>>>>>>>> can request for a port from that util method.
>>>>>>>>>
>>>>>>>>>
>>>>>>>>> On Fri, May 13, 2011 at 2:20 PM, Hiranya Jayathilaka <
>>>>>>>>> hira...@wso2.com> wrote:
>>>>>>>>>
>>>>>>>>>> 1. Change the HTTP/S ports in mgt-transports.xml (2)
>>>>>>>>>> 2. Change the HTTP/S ports in axis2.xml (2)
>>>>>>>>>> 3. Change the LDAP ports in carbon.xml (2)
>>>>>>>>>> 4. Change the Qpid ports in carbon.xml (2)
>>>>>>>>>> 5. Change the JMX ports in advanced/jmx.xml (2)
>>>>>>>>>>
>>>>>>>>>> Total 10 ports to change :(
>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>> --
>>>>>>>>>> Hiranya Jayathilaka
>>>>>>>>>> Senior Software Engineer;
>>>>>>>>>> WSO2 Inc.; http://wso2.org
>>>>>>>>>> E-mail: hira...@wso2.com; Mobile: +94 77 633 3491
>>>>>>>>>> Blog: http://techfeast-hiranya.blogspot.com
>>>>>>>>>>
>>>>>>>>>> _______________________________________________
>>>>>>>>>> Carbon-dev mailing list
>>>>>>>>>> Carbon-dev@wso2.org
>>>>>>>>>> http://mail.wso2.org/cgi-bin/mailman/listinfo/carbon-dev
>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>
>>>>>>>>>
>>>>>>>>> --
>>>>>>>>> *Afkham Azeez*
>>>>>>>>> Director of Architecture; WSO2, Inc.; http://wso2.com
>>>>>>>>> Member; Apache Software Foundation; http://www.apache.org/
>>>>>>>>> * <http://www.apache.org/>**
>>>>>>>>> email: **az...@wso2.com* <az...@wso2.com>* cell: +94 77 3320919
>>>>>>>>> blog: **http://blog.afkham.org* <http://blog.afkham.org>*
>>>>>>>>> twitter:
>>>>>>>>> **http://twitter.com/afkham_azeez*<http://twitter.com/afkham_azeez>
>>>>>>>>> *
>>>>>>>>> linked-in: **http://lk.linkedin.com/in/afkhamazeez*
>>>>>>>>> *
>>>>>>>>> *
>>>>>>>>> *Lean . Enterprise . Middleware*
>>>>>>>>>
>>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>> --
>>>>>>>> *Afkham Azeez*
>>>>>>>> Director of Architecture; WSO2, Inc.; http://wso2.com
>>>>>>>> Member; Apache Software Foundation; http://www.apache.org/
>>>>>>>> * <http://www.apache.org/>**
>>>>>>>> email: **az...@wso2.com* <az...@wso2.com>* cell: +94 77 3320919
>>>>>>>> blog: **http://blog.afkham.org* <http://blog.afkham.org>*
>>>>>>>> twitter:
>>>>>>>> **http://twitter.com/afkham_azeez*<http://twitter.com/afkham_azeez>
>>>>>>>> *
>>>>>>>> linked-in: **http://lk.linkedin.com/in/afkhamazeez*
>>>>>>>> *
>>>>>>>> *
>>>>>>>> *Lean . Enterprise . Middleware*
>>>>>>>>
>>>>>>>>
>>>>>>>> _______________________________________________
>>>>>>>> Carbon-dev mailing list
>>>>>>>> Carbon-dev@wso2.org
>>>>>>>> http://mail.wso2.org/cgi-bin/mailman/listinfo/carbon-dev
>>>>>>>>
>>>>>>>>
>>>>>>>
>>>>>>> _______________________________________________
>>>>>>> Carbon-dev mailing list
>>>>>>> Carbon-dev@wso2.org
>>>>>>> http://mail.wso2.org/cgi-bin/mailman/listinfo/carbon-dev
>>>>>>>
>>>>>>>
>>>>>>
>>>>>>
>>>>>> --
>>>>>> Hiranya Jayathilaka
>>>>>> Senior Software Engineer;
>>>>>> WSO2 Inc.; http://wso2.org
>>>>>> E-mail: hira...@wso2.com; Mobile: +94 77 633 3491
>>>>>> Blog: http://techfeast-hiranya.blogspot.com
>>>>>>
>>>>>> _______________________________________________
>>>>>> Carbon-dev mailing list
>>>>>> Carbon-dev@wso2.org
>>>>>> http://mail.wso2.org/cgi-bin/mailman/listinfo/carbon-dev
>>>>>>
>>>>>>
>>>>>
>>>>>
>>>>> --
>>>>> *Anjana Fernando*
>>>>> Senior Software Engineer
>>>>> WSO2 Inc. | http://wso2.com
>>>>> lean . enterprise . middleware
>>>>>
>>>>> _______________________________________________
>>>>> Carbon-dev mailing list
>>>>> Carbon-dev@wso2.org
>>>>> http://mail.wso2.org/cgi-bin/mailman/listinfo/carbon-dev
>>>>>
>>>>>
>>>>
>>>>
>>>> --
>>>> Hiranya Jayathilaka
>>>> Senior Software Engineer;
>>>> WSO2 Inc.; http://wso2.org
>>>> E-mail: hira...@wso2.com; Mobile: +94 77 633 3491
>>>> Blog: http://techfeast-hiranya.blogspot.com
>>>>
>>>> _______________________________________________
>>>> Carbon-dev mailing list
>>>> Carbon-dev@wso2.org
>>>> http://mail.wso2.org/cgi-bin/mailman/listinfo/carbon-dev
>>>>
>>>>
>>>
>>>
>>> --
>>> *Anjana Fernando*
>>> Senior Software Engineer
>>> WSO2 Inc. | http://wso2.com
>>> lean . enterprise . middleware
>>>
>>> _______________________________________________
>>> Carbon-dev mailing list
>>> Carbon-dev@wso2.org
>>> http://mail.wso2.org/cgi-bin/mailman/listinfo/carbon-dev
>>>
>>>
>>
>>
>> --
>> Hiranya Jayathilaka
>> Senior Software Engineer;
>> WSO2 Inc.; http://wso2.org
>> E-mail: hira...@wso2.com; Mobile: +94 77 633 3491
>> Blog: http://techfeast-hiranya.blogspot.com
>>
>> _______________________________________________
>> Carbon-dev mailing list
>> Carbon-dev@wso2.org
>> http://mail.wso2.org/cgi-bin/mailman/listinfo/carbon-dev
>>
>>
>
>
> --
> *Anjana Fernando*
> Senior Software Engineer
> WSO2 Inc. | http://wso2.com
> lean . enterprise . middleware
>
> _______________________________________________
> Carbon-dev mailing list
> Carbon-dev@wso2.org
> http://mail.wso2.org/cgi-bin/mailman/listinfo/carbon-dev
>
>
--
Hiranya Jayathilaka
Senior Software Engineer;
WSO2 Inc.; http://wso2.org
E-mail: hira...@wso2.com; Mobile: +94 77 633 3491
Blog: http://techfeast-hiranya.blogspot.com
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