Hi Anthony, i have same problem sometimes in version 6.0.16, when the thread stuck occurs again, execute the follow shell script, please adjust for your scenario.
#!/bin/bash today=`date +%Y%m%d%H%M%S` psId=`/opt/java/jdk1.6.0_06/bin/jps | grep Bootstrap | cut -d' ' -f1` /opt/java/jdk1.6.0_06/bin/jstack -l $psId > /mnt/logs/stack/stack${today}.txt execute some times, then post results here, for us to take a look, regards Clóvis On Mon, Jun 30, 2008 at 5:00 AM, Anthony Chamas <[EMAIL PROTECTED]> wrote: > Hello everyone, > > I am having quite a weird situation on a production server : tomcat > seems to be stuck somewhere when handling http requests. > The activity being slow (10 users), some requests take exactly 30 > minutes to be processed. > > I have put aside the following : > -it happens on any page (not linked to a particular path) > -client issue : sniffing the network did not show anything special : > POST is ok, ACK is received by the client which waits for the server's > reply > -database lock : when that happens, I do not see any lock in the database. > -filters : we tried to deactivate all of them : same result > -I see no errors, warning or something significant in the log files. > > I am wondering why I am having the 30 minutes delay... maybe someone > has encountered the same situation... Thanks in advance for helping me > on this one ! > > > Anthony > > > ********* > Here is the architecture : > -struts-, spring-, hibernate- based application with loads of pojos > and db tables (700) > oracle 10g + Tomcat 5.5.25 creating the following DS : > > <Resource name="jdbc/ORACLEDS" scope="Shareable" > type="com.mchange.v2.c3p0.ComboPooledDataSource" /> > <ResourceParams name="jdbc/ORACLEDS"> > <parameter> <name>factory</name> > <value>org.apache.naming.factory.BeanFactory</value> </parameter> > <parameter> <name>driverClass</name> > <value>oracle.jdbc.driver.OracleDriver</value> </parameter> > <parameter> <name>jdbcUrl</name> > <value>jdbc:oracle:thin:@10.10.10.10:1521:SID</value> </parameter> > <parameter> <name>user</name> <value>user</value> </parameter> > <parameter> <name>password</name> <value>pwd</value> </parameter> > <parameter> <name>initialPoolSize</name> <value>10</value> </parameter> > <parameter> <name>minPoolSize</name> <value>10</value> </parameter> > <parameter> <name>maxPoolSize</name> <value>400</value> </parameter> > <parameter> <name>maxIdleTime</name> <value>10000</value> </parameter> > <parameter> <name>autoCommitOnClose</name> <value>false</value> > </parameter> > <parameter> <name>numHelperThreads</name> <value>50</value> </parameter> > <parameter> <name>maxStatements</name> <value>0</value> </parameter> > </ResourceParams> > > The server.xml dealing with the connector : > > <Connector port="8081" maxHttpHeaderSize="8192" > maxThreads="150" minSpareThreads="25" maxSpareThreads="75" > enableLookups="false" redirectPort="8443" acceptCount="100" > connectionTimeout="20000" disableUploadTimeout="true" /> > > --------------------------------------------------------------------- > To start a new topic, e-mail: users@tomcat.apache.org > To unsubscribe, e-mail: [EMAIL PROTECTED] > For additional commands, e-mail: [EMAIL PROTECTED] > >