Adrian,

Do you believe there is a need for a File System Based Persistence Manager, or 
do you believe that JDBC persistence suits everyone?s needs?

Is there going to be a non-JDBC persistence method in the future, or a JDBC one 
that retains the performance of the current file system based method?

The only JDBC interface that could get near the speed of java writing to a 
local file system is a database server that runs inside the same jvm (like 
Hypersonic).  Removing the extra TCP traffic required to stream the blob to the 
database.  But currently Hypersonic is not up to the task.

Another possible answer is to have the blob part of the message stored locally 
and everything else in the database.  As it is streaming of the blob that slows 
down the database, as they don't like store large byte arrays (that?s what file 
systems are used for.)

I'm disappointed that you rejected bug fixes on the basis that you believe the 
file based solution has 'fundamental problems with the implementation'.  I 
guess there are other users of this PM that would have benefited from their 
efforts.

Currently as JBoss 4.0 exists I can not recommend that any of our customers use 
JBoss 4.0, as the performance penalty for reliable JDBC peristence is too high.

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http://www.jboss.org/index.html?module=bb&op=viewtopic&p=3880655#3880655

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http://www.jboss.org/index.html?module=bb&op=posting&mode=reply&p=3880655


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