Tomcat can act as a client to another tomcat. See
http://jakarta.apache.org/commons/httpclient/ for a library supporting this.
--David
Johnny Kewl wrote:
No, I dont think so, a web server is not a client, and unless you
really have to work on port 80, it would be much easier to just to use
JDBC to exchange records. ie open 2 database connections, read from
one and write to the other, this way you can also use tranactions and
ensure the integrity.
If you talking about a real time replication system, ie the databases
must stay aligned, its alot more complex than simply writing a few
records.
If its something like updating the status say once a week, then a web
server may do.
For example you make a cache or disconnected recordset in the servlet,
this gets sent to a client, and it updates the dB on the other side. A
cache is serializable, so that would work.
If you use PostgreSQL, I may be able to help you, I have a replication
system for that, but its not on port 80.
Its not enough to just say I got two dB's.... you need to explain the
desired system.
Using a WEB server to send a cached recorset to a client, that then
sticks it in a local embedded dB and uses the data, is one thing.
Replication is another story.
----- Original Message ----- From: "randeelwrw" <[EMAIL PROTECTED]>
To: <users@tomcat.apache.org>
Sent: Monday, July 09, 2007 6:49 AM
Subject: Re: about tomcat
thank you for the reply.
what i really need to do is transfer records from one database to
another database.so in the middle there would be two web servers.
is this a good idea?
Stephen.Morris wrote:
Yes, it is possible to run two servers as a cluster and exchange
information between them. I have seen an article on the internet
recently
on doing exactly this. The easiest way of finding out how to do this
is to
use Googles advanced search and to type 'tomcat clustering' into the
exact
phrase textbox, which should return about 19,700 hits. It is then a
matter
of just selecting the article that is most relevant to what you are
trying
to do.
regards,
Steve Morris
IT Security Access Management
Technology Risk and Security
Technology Australia
National Australia Bank
Phone: +61-3-8634 1755 (x31755)
Mobile: +0438 537 569
email: [EMAIL PROTECTED]
randeelwrw
<[EMAIL PROTECTED]
.com> To
users@tomcat.apache.org
09/07/2007 14:05 cc
Subject
Please respond to about tomcat
"Tomcat Users
List"
<[EMAIL PROTECTED]
che.org>
hi everyone,
can i use two tomcat webservers to exchange information between them?
how can i do that?
thank you,
rana.
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