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Posted to user@struts.apache.org by Nicolas De Loof <ni...@capgemini.com> on 2005/06/13 14:06:45 UTC
[fully-OT] File replication between webapps
Hi all,
this mail is totaly of topic, so sory sory sory...
... but there is so much java masters on this list !
I have to replicate some datas between two servers running my app (with
a load balancer, but not using a cluster mode). We are going to build a
home-made solution, and I wonder if any open-source tool could help me
on this.
I'm looking for something like a "2 phase commit" or "rsync" Java lib,
that could be used to assert an update on one server will be
automagically replicated on the other one.
Thanks.
Nico.
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Re: [fully-OT] File replication between webapps
Posted by Nicolas De Loof <ni...@capgemini.com>.
Thanks a lot, I'll take a loot at this ORB.
Nico.
Leon Rosenberg a écrit :
>Do you hold the data inmemory or in a file system?
>
>In later case you'll be just fine with mounting a common share, like NFS
>or SMB.
>In first case you'd need a software synchronization inbetween, which is
>typically solved by a publisher/subscriber pattern. You can use MDB
>(message-driven beans, there are enough (open source) solutions
>available without an obligatory application server.
>Personally I'd prefer an ORB with an EventService like JacORB -
>www.jacorb.org.
>
>regards
>Leon
>
>P.S. Still you have to build the
>say-the-other-one-that-the-data-has-been-updated logic by yourself. But
>this is about 5 lines of code, so i don't think you should search for a
>tool herefore.
>
>
>
>On Mon, 2005-06-13 at 14:06 +0200, Nicolas De Loof wrote:
>
>
>>Hi all,
>>
>>this mail is totaly of topic, so sory sory sory...
>>... but there is so much java masters on this list !
>>
>>I have to replicate some datas between two servers running my app (with
>>a load balancer, but not using a cluster mode). We are going to build a
>>home-made solution, and I wonder if any open-source tool could help me
>>on this.
>>I'm looking for something like a "2 phase commit" or "rsync" Java lib,
>>that could be used to assert an update on one server will be
>>automagically replicated on the other one.
>>
>>Thanks.
>>
>>Nico.
>>
>>This message contains information that may be privileged or confidential and is the property of the Capgemini Group. It is intended only for the person to whom it is addressed. If you are not the intended recipient, you are not authorized to read, print, retain, copy, disseminate, distribute, or use this message or any part thereof. If you receive this message in error, please notify the sender immediately and delete all copies of this message.
>>
>>
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>>
>>
>>
>
>
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Re: [fully-OT] File replication between webapps
Posted by Leon Rosenberg <st...@anotheria.net>.
Do you hold the data inmemory or in a file system?
In later case you'll be just fine with mounting a common share, like NFS
or SMB.
In first case you'd need a software synchronization inbetween, which is
typically solved by a publisher/subscriber pattern. You can use MDB
(message-driven beans, there are enough (open source) solutions
available without an obligatory application server.
Personally I'd prefer an ORB with an EventService like JacORB -
www.jacorb.org.
regards
Leon
P.S. Still you have to build the
say-the-other-one-that-the-data-has-been-updated logic by yourself. But
this is about 5 lines of code, so i don't think you should search for a
tool herefore.
On Mon, 2005-06-13 at 14:06 +0200, Nicolas De Loof wrote:
> Hi all,
>
> this mail is totaly of topic, so sory sory sory...
> ... but there is so much java masters on this list !
>
> I have to replicate some datas between two servers running my app (with
> a load balancer, but not using a cluster mode). We are going to build a
> home-made solution, and I wonder if any open-source tool could help me
> on this.
> I'm looking for something like a "2 phase commit" or "rsync" Java lib,
> that could be used to assert an update on one server will be
> automagically replicated on the other one.
>
> Thanks.
>
> Nico.
>
> This message contains information that may be privileged or confidential and is the property of the Capgemini Group. It is intended only for the person to whom it is addressed. If you are not the intended recipient, you are not authorized to read, print, retain, copy, disseminate, distribute, or use this message or any part thereof. If you receive this message in error, please notify the sender immediately and delete all copies of this message.
>
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: user-unsubscribe@struts.apache.org
> For additional commands, e-mail: user-help@struts.apache.org
>
>
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Re: [fully-OT] File replication between webapps
Posted by Nicolas De Loof <ni...@capgemini.com>.
Oracle is the only aproved database (clusterable or not). This is the
reason I was looking for a "rsync"-linke solution.
Nico.
delbd a écrit :
>Le Lundi 13 Juin 2005 14:27, Nicolas De Loof a écrit :
>
>
>>Our customer defines architecture restriction for it's applications. One
>>of them is that the (only) usable database is Oracle. As we don't use a
>>database for the app, adding orcale only to get DB replication may be
>>difficult to explain (and will add a significant cost)
>>
>>
>
>Sure it does :)
>If oracle is only 'clustered' database possible but other non lcustered ones
>are available, maybe C-JDBC could help you (it provide RAID like ontop of any
>database).
>
>If not, maybe the transactional Collections in
>http://jakarta.apache.org/commons/transaction/ may be of interrest (they
>supports 2 phases commits using XAressources if am not wrong)
>
>
>
>>delbd a écrit :
>>
>>
>>>Just my two cents
>>>
>>>I'll suggest storing the datas on a central database (which could be
>>>clustered amongst your servers)
>>>
>>>Le Lundi 13 Juin 2005 14:06, Nicolas De Loof a écrit :
>>>
>>>
>>>>Hi all,
>>>>
>>>>this mail is totaly of topic, so sory sory sory...
>>>>... but there is so much java masters on this list !
>>>>
>>>>I have to replicate some datas between two servers running my app (with
>>>>a load balancer, but not using a cluster mode). We are going to build a
>>>>home-made solution, and I wonder if any open-source tool could help me
>>>>on this.
>>>>I'm looking for something like a "2 phase commit" or "rsync" Java lib,
>>>>that could be used to assert an update on one server will be
>>>>automagically replicated on the other one.
>>>>
>>>>Thanks.
>>>>
>>>>Nico.
>>>>
>>>>This message contains information that may be privileged or confidential
>>>>and is the property of the Capgemini Group. It is intended only for the
>>>>person to whom it is addressed. If you are not the intended recipient,
>>>>you are not authorized to read, print, retain, copy, disseminate,
>>>>distribute, or use this message or any part thereof. If you receive this
>>>> message in error, please notify the sender immediately and delete all
>>>>copies of this message.
>>>>
>>>>
>>>>---------------------------------------------------------------------
>>>>To unsubscribe, e-mail: user-unsubscribe@struts.apache.org
>>>>For additional commands, e-mail: user-help@struts.apache.org
>>>>
>>>>
>>This message contains information that may be privileged or confidential
>>and is the property of the Capgemini Group. It is intended only for the
>>person to whom it is addressed. If you are not the intended recipient, you
>>are not authorized to read, print, retain, copy, disseminate, distribute,
>>or use this message or any part thereof. If you receive this message in
>>error, please notify the sender immediately and delete all copies of this
>>message.
>>
>>
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>>For additional commands, e-mail: user-help@struts.apache.org
>>
>>
>
>
>
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Re: [fully-OT] File replication between webapps
Posted by delbd <de...@oma.be>.
Le Lundi 13 Juin 2005 14:27, Nicolas De Loof a écrit :
> Our customer defines architecture restriction for it's applications. One
> of them is that the (only) usable database is Oracle. As we don't use a
> database for the app, adding orcale only to get DB replication may be
> difficult to explain (and will add a significant cost)
Sure it does :)
If oracle is only 'clustered' database possible but other non lcustered ones
are available, maybe C-JDBC could help you (it provide RAID like ontop of any
database).
If not, maybe the transactional Collections in
http://jakarta.apache.org/commons/transaction/ may be of interrest (they
supports 2 phases commits using XAressources if am not wrong)
>
> delbd a écrit :
> >Just my two cents
> >
> >I'll suggest storing the datas on a central database (which could be
> > clustered amongst your servers)
> >
> >Le Lundi 13 Juin 2005 14:06, Nicolas De Loof a écrit :
> >>Hi all,
> >>
> >>this mail is totaly of topic, so sory sory sory...
> >>... but there is so much java masters on this list !
> >>
> >>I have to replicate some datas between two servers running my app (with
> >>a load balancer, but not using a cluster mode). We are going to build a
> >>home-made solution, and I wonder if any open-source tool could help me
> >>on this.
> >>I'm looking for something like a "2 phase commit" or "rsync" Java lib,
> >>that could be used to assert an update on one server will be
> >>automagically replicated on the other one.
> >>
> >>Thanks.
> >>
> >>Nico.
> >>
> >>This message contains information that may be privileged or confidential
> >>and is the property of the Capgemini Group. It is intended only for the
> >>person to whom it is addressed. If you are not the intended recipient,
> >> you are not authorized to read, print, retain, copy, disseminate,
> >> distribute, or use this message or any part thereof. If you receive this
> >> message in error, please notify the sender immediately and delete all
> >> copies of this message.
> >>
> >>
> >>---------------------------------------------------------------------
> >>To unsubscribe, e-mail: user-unsubscribe@struts.apache.org
> >>For additional commands, e-mail: user-help@struts.apache.org
>
> This message contains information that may be privileged or confidential
> and is the property of the Capgemini Group. It is intended only for the
> person to whom it is addressed. If you are not the intended recipient, you
> are not authorized to read, print, retain, copy, disseminate, distribute,
> or use this message or any part thereof. If you receive this message in
> error, please notify the sender immediately and delete all copies of this
> message.
>
>
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--
David Delbecq
Royal Meteorological Institute of Belgium
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Is there life after /sbin/halt -p?
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Re: [fully-OT] File replication between webapps
Posted by Nicolas De Loof <ni...@capgemini.com>.
Our customer defines architecture restriction for it's applications. One
of them is that the (only) usable database is Oracle. As we don't use a
database for the app, adding orcale only to get DB replication may be
difficult to explain (and will add a significant cost)
delbd a écrit :
>Just my two cents
>
>I'll suggest storing the datas on a central database (which could be clustered
>amongst your servers)
>
>
>Le Lundi 13 Juin 2005 14:06, Nicolas De Loof a écrit :
>
>
>>Hi all,
>>
>>this mail is totaly of topic, so sory sory sory...
>>... but there is so much java masters on this list !
>>
>>I have to replicate some datas between two servers running my app (with
>>a load balancer, but not using a cluster mode). We are going to build a
>>home-made solution, and I wonder if any open-source tool could help me
>>on this.
>>I'm looking for something like a "2 phase commit" or "rsync" Java lib,
>>that could be used to assert an update on one server will be
>>automagically replicated on the other one.
>>
>>Thanks.
>>
>>Nico.
>>
>>This message contains information that may be privileged or confidential
>>and is the property of the Capgemini Group. It is intended only for the
>>person to whom it is addressed. If you are not the intended recipient, you
>>are not authorized to read, print, retain, copy, disseminate, distribute,
>>or use this message or any part thereof. If you receive this message in
>>error, please notify the sender immediately and delete all copies of this
>>message.
>>
>>
>>---------------------------------------------------------------------
>>To unsubscribe, e-mail: user-unsubscribe@struts.apache.org
>>For additional commands, e-mail: user-help@struts.apache.org
>>
>>
>
>
>
This message contains information that may be privileged or confidential and is the property of the Capgemini Group. It is intended only for the person to whom it is addressed. If you are not the intended recipient, you are not authorized to read, print, retain, copy, disseminate, distribute, or use this message or any part thereof. If you receive this message in error, please notify the sender immediately and delete all copies of this message.
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Re: [fully-OT] File replication between webapps
Posted by delbd <de...@oma.be>.
Just my two cents
I'll suggest storing the datas on a central database (which could be clustered
amongst your servers)
Le Lundi 13 Juin 2005 14:06, Nicolas De Loof a écrit :
> Hi all,
>
> this mail is totaly of topic, so sory sory sory...
> ... but there is so much java masters on this list !
>
> I have to replicate some datas between two servers running my app (with
> a load balancer, but not using a cluster mode). We are going to build a
> home-made solution, and I wonder if any open-source tool could help me
> on this.
> I'm looking for something like a "2 phase commit" or "rsync" Java lib,
> that could be used to assert an update on one server will be
> automagically replicated on the other one.
>
> Thanks.
>
> Nico.
>
> This message contains information that may be privileged or confidential
> and is the property of the Capgemini Group. It is intended only for the
> person to whom it is addressed. If you are not the intended recipient, you
> are not authorized to read, print, retain, copy, disseminate, distribute,
> or use this message or any part thereof. If you receive this message in
> error, please notify the sender immediately and delete all copies of this
> message.
>
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: user-unsubscribe@struts.apache.org
> For additional commands, e-mail: user-help@struts.apache.org
--
David Delbecq
Royal Meteorological Institute of Belgium
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