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From Vic Cekvencih <vic_cekven...@baseBeans.com>
Subject Re: question on heavy load website design using struts
Date Fri, 18 Jul 2003 10:11:11 GMT
FYI, one site I worked on P&T (performance and tuning) we improved
performance by removing replication.
Also look at postgresql.org, it is much like Oracle.

(self-promo: keep me in mind for engineering larger sites, I have some
useful experience with good ROI)

Nicolas De Loof wrote:

> No problem, I'll be patient. I just want my boss to stop saying "Oracle replication"
each time we get load-ballancing
> needs.
> 
> Nico.
> 
> 
> 
> 
>>Sure! Only a little bit patience,please.It may take me
>>one or two weeks to go over the test.I used to meet a
>>problem on container managed security using jboss
>>cluster.That is,jboss'clusterring feature works fine
>>except when I use declarative security model to
>>protect my page,the authenticated principal will not
>>get replicated across the members in the cluster.At
>>this time,I want to find a work around to that too.
>>
>>Again,thaks for your info.
>>
>>Guo Yingshou
>> --- Nicolas De Loof <nicolas.deloof@cgey.com>
>>的正文:> Please could you send me feedback if you
>>experiment
>>
>>>this jdbc-cluster-driver ?
>>>
>>>Nico
>>>
>>>
>>>
>>>
>>>>Nico,
>>>>
>>>>Great! That is exactly what I'm looking for.Maybe
>>>
>>>I'll
>>>
>>>>have some hard time to setup a testing environment
>>>
>>>and
>>>
>>>>write some code to see what will happen.
>>>>
>>>>Thanks a lot!
>>>>
>>>>Guo Yingshou
>>>>
>>>> --- Nicolas De Loof <nicolas.deloof@cgey.com>
>>>>的正文:> You could look at this :
>>>>
>>>>>http://c-jdbc.objectweb.org/
>>>>>
>>>>>this intermediate JDBC driver allow you to
>>>
>>>cluster
>>>
>>>>>databases. Notice I never used it, use it at
>>>
>>>your
>>>
>>>>>own risk ;-)
>>>>>
>>>>>Nico.
>>>>>
>>>>>
>>>>>
>>>>>>Hi,
>>>>>>
>>>>>>I am sure that someone here must have worked
>>>
>>>on a
>>>
>>>>>>large website with heavy load using struts and
>>>
>>>I
>>>
>>>>>>wonder if you'll be kindly enough to give me
>>>
>>>some
>>>
>>>>>>suggestions in this occasion.
>>>>>>
>>>>>>I am using tomcat+jboss as application
>>>
>>>server.I
>>>
>>>>>have
>>>>>
>>>>>>setup several tomcat_jboss instances in a
>>>
>>>cluster
>>>
>>>>>>environment and of course I use struts in my
>>>>>>application.HttpSession created in one
>>>
>>>instance
>>>
>>>>>will
>>>>>
>>>>>>get replicated across all members in the
>>>>>
>>>>>cluster.It's
>>>>>
>>>>>>just what I want.The problem is how should I
>>>>>
>>>>>connect
>>>>>
>>>>>>the app servers with the backend db server(s)?
>>>
>>>If
>>>
>>>>>I
>>>>>
>>>>>>use only one db instance,all app server can
>>>>>
>>>>>connect to
>>>>>
>>>>>>it without any problem,but here lies the
>>>>>
>>>>>bottleneck.I
>>>>>
>>>>>>want to use several db instances(preferrably
>>>>>>mysql).How can I do that?
>>>>>>
>>>>>>Thanks in advance!
>>>>>>
>>>>>>Guo Yingshou
>>>>>>
>>>>>>
>>>>>
>>_________________________________________________________
>>
>>>>>>Do You Yahoo!?
>>>>>>国内电邮用户反垃圾调查拉开帷幕
>>>>>>
>>>>>
>>http://cn.rd.yahoo.com/mail_cn/tag/?http://cn.tech.yahoo.com/zhuanti/laji/index.html
>>
>>>>>>
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>>>
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>>
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>>
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-- 
Vic Cekvenich,
Struts Instructor,
1-800-917-JAVA

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