Re: OT/ Tomcat, Hibernate and MYSQL problem ( byte to blob )

[Bryan Hunt]

My app is able to do it no problem, back and forth.

You can get the source code from http://jestate.revoltingdigits.com/

ie.jestate.struts.action.ImageUploadAction

My code is a  mess at the moment but that code is working.

--b

Mark Lowe wrote:

I've had the same thing happen using DBCP and C3PO, I believe its the driver rather than the pooling. As I said we've a app thats live, and i haven't touched it in months using DBCP.

[OT] subject change.. Have you had any joy with byte[] to blob mapping for file uploads with hibernate 2.1.4? I created a custom usertype, but i get a npe. 2.0 delbt with life, but things appear to have taken a step backwards. (please dont make me go the the scary hibernate forum :) )

On 30 Jul 2004, at 11:34, Joe Hertz wrote:

I noticed this behavior with 3.0.14.

This _really_ sounds like this entry in the Hibernate FAQ to me:

http://www.hibernate.org/117.html#A13

I wouldn't use DBCP though as Gavin King is apparently fed up with it,
and built-in support for it is being yanked in the next major version of
Hibernate.

-----Original Message-----
From: Marco Mistroni [mailto:[EMAIL PROTECTED]
Sent: Friday, July 30, 2004 5:08 AM
To: 'Struts Users Mailing List'
Subject: RE: OT/ Tomcat, Hibernate and MYSQL problem

Hello,
    If I remember correct, mysql connector 3.0.11

Regards
    marco

-----Original Message-----
From: Mark Lowe [mailto:[EMAIL PROTECTED]
Sent: 30 July 2004 09:36
To: Struts Users Mailing List
Subject: Re: OT/ Tomcat, Hibernate and MYSQL problem

Marco

What jdbc driver are you using?

They was a shady version 3 behaving like this.

On 30 Jul 2004, at 10:05, Joe Hertz wrote:

Hibernate's internal connection pooling isn't meant for production
because it does things just like that.

Suggest you use c3p0 for the pooling.

From my hibernate.cfg.xml, I only had to add this:

       <property name="c3p0.minPoolSize">5</property>
       <property name="c3p0.maxPoolSize">20</property>
       <property name="c3p0.timeout">1800</property>
       <property name="c3p0.max_statement">50</property>

HTH

-Joe

-----Original Message-----
From: Marco Mistroni [mailto:[EMAIL PROTECTED]
Sent: Friday, July 30, 2004 3:58 AM
To: 'Struts Users Mailing List'
Subject: OT/ Tomcat, Hibernate and MYSQL problem

Hello,

    First of all, I apologize for the off topic issue..
I know this is not the list, but I tried hibernate forums, and
Searched the web with no solution.. hopefully some of u

had the Same

problem and solved it..

I m experiencing problems with Hibernate in tomcat,

talking to mysql.

My situation is that I didn't define any connection pools

in tomcat,

but left it to Hibernate to handle that...

After leaving the application running for 11 hours, I got

following

exception

hi all,
i have a webapp taht uses Hibernate and MYSQL, running on top of
tomcat.

i am letting Hibernate handle the connections to mysql db, since i
have no connection pools defined in tomcat. after running the
application for nearly 9 hours, when i tried to use my app

to connect

to the database i got following exception:

Caused by: net.sf.hibernate.JDBCException: Could not

execute query at

net.sf.hibernate.impl.SessionImpl.find(SessionImpl.java:1476)
at net.sf.hibernate.impl.QueryImpl.list(QueryImpl.java:45)
at com.myapp.hibernate.HibernatePersistenceManager.query(Hibernat
ePersisten
ceManager.java:205)
... 31 more
Caused by: java.sql.SQLException: Communication link failure:
java.net.SocketException, underlying cause: Software caused

connection

abort: recv failed

** BEGIN NESTED EXCEPTION **

java.net.SocketException
MESSAGE: Software caused connection abort: recv failed

STACKTRACE:

java.net.SocketException: Software caused connection abort: recv
failed

now i have searched the web and found two possible

alternatives.. one

was to add following problems to hibernate config file.. <property
name="connection.autoReconnect">true</property>
<property name="connection.autoReconnectForPools">true</property>
<property
name="connection.is-connection-validation-required">true</property>

but this does not work, as ihave added thos eproperties to

hibernate

properties file and i am still getting same exception

then I tried to add ?autoReconnect=true to JBDC URL, but

that didn't

work either coz I left application running for 11 hours and after
that I got same exception...

can anyone help me out?

THANX in advance and regards
    marco

l: [EMAIL PROTECTED]

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