I think so. Tomcat 4.1.x relies on DBCP 1.0 whose docs aren't readily
available anymore. If you can find the source for DBCP 1.0, you could
take a look in the source code and get that answer. Or you could just
try it on your test system and see if it works. :-)
The manner the validation query is added to tomat's config is different
though. You add it in the ResourceParams element the same way other
properties are defined in your version.
--David
Thangavel Sankaranarayanan wrote:
Hi David,
Thanks !!!
Is the validationQuery applicable to tomacat 4.x.
I am using tomcat 4.x in windows2000
Regards,
Thangavel Sankaranarayanan
David Smith
<[EMAIL PROTECTED]
> To
Tomcat Users List
09/08/2008 09:19 <users@tomcat.apache.org>
PM cc
Subject
Please respond to Re: Intermitant DB Problem in
"Tomcat Users tomcat:java.sql.SQLException: Io
List" exception: Connection reset by
<[EMAIL PROTECTED] peer: JVM_recv in socket input
che.org> stream read
I've partially given it to you already. I'm assuming for the purposes
of this thread you have tomcat 5.5.x or tomcat 6.0.x and are using the
tomcat provided database pooling. Find the <Resource ... /> element in
your webapp's context xml file where you defined your database pool and
add an attribute named validationQuery with a value of "select 1". Then
restart your webapp.
--David
Thangavel Sankaranarayanan wrote:
Please help me in setting up a Validation Querry!!!
I am not aware of it!!
Regards,
Thangavel Sankaranarayanan
David Smith
<[EMAIL PROTECTED]
>
To
Tomcat Users List
09/08/2008 06:24 <users@tomcat.apache.org>
PM
cc
Subject
Please respond to Re: Intermitant DB Problem in
"Tomcat Users tomcat:java.sql.SQLException: Io
List" exception: Connection reset by
<[EMAIL PROTECTED] peer: JVM_recv in socket input
che.org> stream read
Two questions:
1. Is the db server on the same box as the tomcat server? If not, have
you ruled out network hardware issues between the db server and tomcat?
2. Does your db pool definition have the attribute
validationQuery="select 1"? That would pre-test your connections before
returning one on ds.getConnection(), regenerating them if they fail.
--David
Thangavel Sankaranarayanan wrote:
Hi ,
I am getting the following error when connecting to oracle database,
Has any one seen this kind of errors before? is this the problem with
tomcat in loosing the connections??
I am getting this error once in 5 hrs and i get a HTTPStatus500 error
and
when a user tries again it gets okay and it is working
How can i resolve this Intermitant DB Problem in tomcat!!!
java.sql.SQLException: Io exception: Connection reset by peer: JVM_recv
in
socket input stream read
This is the Exception details in my application logs:
DEBUG au.com.vodafone.mpp.bos.MPPFactory - Calling getConnection
method
of Datasrc Class:600991
DEBUG au.com.vodafone.mpp.da.DataSrc - Inside getConnection() method
of
DataScr
DEBUG au.com.vodafone.mpp.da.DataSrc - About to get a Connection from
SharedPoolDatasrc and return it back...
ERROR au.com.vodafone.mpp.da.DataSrc - Exception while get a
Datasource
connection
ERROR au.com.vodafone.mpp.da.DataSrc - java.sql.SQLException: Io
exception: Connection reset by peer: JVM_recv in socket input stream
read
DEBUG au.com.vodafone.mpp.bos.MPPFactory -
Exception:java.sql.SQLException: Io exception: Connection reset by peer:
JVM_recv in socket input stream read
WARN org.apache.struts.action.RequestProcessor - Unhandled Exception
thrown: class java.sql.SQLException
This is my code:
static public Connection getConnection() throws Exception {
theLog.debug("Inside getConnection() method of DataScr");
try
{
if (ds == null)
{
theLog.debug("SharedPoolDatasrc is NULL: Serious
Error ");
System.out.println("SERIOUS ERROR 99");
}
theLog.debug("About to get a Connection from
SharedPoolDatasrc and return it back...");
return ds.getConnection();
}
catch(Exception exp)
{
theLog.error("Exception while get a Datasource
connection");
theLog.error(exp);
throw exp;
}
}
Regards,
Thangavel Sankaranarayanan
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