1. Hibernate/mysql connection pooling stackoverflow.comWe host a service (servlet running on jboss), which receives something like 5-6 requests per second. Every request needs to connect to mysql through hibernate. Most of our requests do selects, ... |
2. Something wrong with Hibernate DB connection pooler c3p0 stackoverflow.comsince last post, did all the changes suggested but this problem still haunts me. Here's the error i get: |
3. C3P0 connection pool tester is not called stackoverflow.comI tried to check if connect is up or down to MySQL using C3P0 connection pool tester. It works if password is correct. But password can be changed and I need ... |
4. C3P0 Connection Problem stackoverflow.comI am using hibernate and cp30 for database operations and getting error: |
5. (MySQLNonTransientConnectionException) Hibernate3.6 + MySQL5 + c3p0 stackoverflow.comI am using JPA + hibernate 3.6.6 + MySQL5 (mysql-connector-java-5.1.6-bin.jar) with c3p0-0.9.1.jar pool implementation. My persistence.xml |
6. Hibernate and MySQL connection issues coderanch.comAfter a lot of research, it appears that a lot of people (including me) are having "broken pipe" problems with Hibernate and MySQL after the typical 8 hour timeout period. Hibernate does not apparently handle this problem for us. One possible posted solution that I'm trying to try is to use C3PO, the connection pool from sourceforge. However, when I add ... |
7. MySQL Connection Problems forum.hibernate.orgHello. I am having a connection problem with MySQL. I did a search but got over 8000 results. My hibernate.cfg.xml looks like this: |
8. c3p0 not able to limit connections from mysql forum.hibernate.orgHi, i am using Hibernate 3.1 with struts 2.0 and mysql as DB. My c3p0 connection setting are as follows.. |
9. Hibernate & mysql connection after connection closed. forum.hibernate.orgHi! I use hibernate in my web application, and got couple times following exception, after my computer has been idle over night, and started use application again next day. Exception will disappear, if i install program again to tomcat, but that's really isn't any solution. Mar 11, 2004 1:13:59 PM net.sf.hibernate.util.JDBCExceptionReporter logExceptions WARNING: SQL Error: 0, SQLState: 08003 Mar 11, 2004 ... |
10. Connection problem with MySQL forum.hibernate.orgAuthor Message arijitm Post subject: Connection problem with MySQL Posted: Thu Mar 18, 2004 5:59 am Beginner Joined: Tue Mar 02, 2004 1:12 pm Posts: 25 Location: Newcastle Upon Tyne Hi I am trying to develop a persistent framework with Hibernate, and using Hibernate 2.1, and MySql as my data store. The example provided in the Hibernate source distribution ... |
11. mysql killing the connection after X seconds? forum.hibernate.orgI was testing my application and after a certain amount of time I get a JDBCException, Could not execute query. Is this because mysql is closing the connection after a certian amount of time? To fix the problem, I just restart Tomcat and it works, so I'm not sure how the connection is being terminated. I'm running Tomcat 5.0.24 MySQL 4.0.18 ... |
12. Connection problems with Hibernate/Tomcat50./mysql forum.hibernate.orghi 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: ... |
13. MySQL connection expires forum.hibernate.orgI have written a web application that connects to a MySQL database. Everything works fine for the first 8 hours, after which the MySQL connection expires. I have changed the hibernate.properties file several times as suggested in the forum, but to no avail. I use: Hibernate 2.1.4 C3P0 0.9.0-pre6 MySQL 4.0.18 Tomcat 5.0.16 hibernate.properties: hibernate.c3p0.acquire_increment=2 hibernate.c3p0.idle_test_period=300 hibernate.c3p0.max_size=100 hibernate.c3p0.min_size=5 hibernate.c3p0.timeout=3000 hibernate.connection.driver_class=org.gjt.mm.mysql.Driver hibernate.connection.url=### ... |
14. Hibernate - MySQL Problem. Connection gets closed in 8 hrs forum.hibernate.orgHi , I have a problem with Hibernate-MySQL appln in which database connection gets lost and is not recovering after some 5 hours of inactivity throwing, with following exception. EXCEPTION ========= Caused by: com.mysql.jdbc.CommunicationsException: Communications link failure due to underlying exception: ** BEGIN NESTED EXCEPTION ** java.net.UnknownHostException MESSAGE: serverURL STACKTRACE: java.net.UnknownHostException: serverURL at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:153) at java.net.Socket.connect(Socket.java:452) at java.net.Socket.connect(Socket.java:402) at java.net.Socket. |
15. mysql hibernate connection Broken pipe forum.hibernate.orgI am using hibernate 3.0 with mysql-connector-java-3.1.7 and after a few hours wihtout activity in the database the hibernate connection gives me the following error wen trying to make an insertion: org.hibernate.exception.GenericJDBCException: could not insert: [net.saphety.emessage.hibernate.Emessage] at org.hibernate.exception.ErrorCodeConverter.handledNonSpecificException(ErrorCodeConverter.java:92) at org.hibernate.exception.ErrorCodeConverter.convert(ErrorCodeConverter.java:80) at org.hibernate.exception.JDBCExceptionHelper.convert(JDBCExceptionHelper.java:43) at org.hibernate.persister.entity.BasicEntityPersister.insert(BasicEntityPersister.java:1777) at org.hibernate.persister.entity.BasicEntityPersister.insert(BasicEntityPersister.java:2178) at org.hibernate.action.EntityIdentityInsertAction.execute(EntityIdentityInsertAction.java:34) at org.hibernate.engine.ActionQueue.execute(ActionQueue.java:239) at org.hibernate.event.def.AbstractSaveEventListener.performSaveOrReplicate(AbstractSaveEventListener.java:240) at org.hibernate.event.def.AbstractSaveEventListener.performSave(AbstractSaveEventListener.java:160) at org.hibernate.event.def.AbstractSaveEventListener.saveWithGeneratedId(AbstractSaveEventListener.java:95) at org.hibernate.event.def.DefaultSaveOrUpdateEventListener.saveWithGeneratedOrRequestedId(DefaultSaveOrUpdateEventListener.java:184) at org.hibernate.event.def.DefaultSaveEventListener.saveWithGeneratedOrRequestedId(DefaultSaveEventListener.java:33) at ... |
16. connection Hibernate-mysql forum.hibernate.orgI have a local data base called pruebasjava in mysql and have created hibernate.cfg.xml |
17. c3p0/mysql connection poling forum.hibernate.orgIs there a way I can check that hibernate actually is using C3P0 for pooling and that the number of connections is as specified in my config? I ask because when I check "Server Connections" on "MySQL Administrator", it says only 1 user connected to the database, when in fact I have specified a min of 10. I'm using MySQL 5, ... |
18. Connection with mysql close suddenly forum.hibernate.orgBeginner Joined: Fri Sep 02, 2005 3:42 pm Posts: 32 Hi, i'm using a mysql in one application and suddenly my connection with DB follows down. The exception is: Code: com.mysql.jdbc.CommunicationsException: Communications link failure due to underlying exception: ** BEGIN NESTED EXCEPTION ** java.io.EOFException STACKTRACE: java.io.EOFException at com.mysql.jdbc.MysqlIO.readFully(MysqlIO.java:1934) at com.mysql.jdbc.MysqlIO.reuseAndReadPacket(MysqlIO.java:2380) at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:2909) ... |
19. Problem with MySql Connection forum.hibernate.orgPleas help. I am using hibernate 3.1.3. and integrated with struts application. I am using mySql as the database with hibernate connection. I deployed it as a war file in weblogic 8.1. It is working fine. But when is keep it open this application and next day access the program it fails at JDBC part and gives the follwing error. But ... |
20. MySQL Database connection with c3p0 fails (works only once) forum.hibernate.org |
21. MySQL Database connection with c3p0 fails (works only once) forum.hibernate.orgNewbie Joined: Wed Oct 04, 2006 10:24 am Posts: 3 Hi everybody, I am building a small CMS application with struts and hibernate on tomcat 5.5.17 Since I've discovered that the built in connection pool is not intended for production use, I am trying to switch over to c3p0 and there are my problems. (Using c3p0-0.9.1-pre6) The connection with c3p0 works ... |
22. Re: Problem with MySql Connection forum.hibernate.orgHi all, Pleas help. I am using hibernate 3.1.3. and integrated with struts application. MySql Weblogic 8.1 I am using Weblogic connection(from JNDI look up). I deployed it as a war file in weblogic 8.1.But when I access this application after a very logn time(next day) it fails at JDBC part and gives the error given at the end. But when ... |
23. loose connection with mysql forum.hibernate.orghi I use hibernate 3.2, java 1.5, mysql4 and rcp. My application is for intranet (~10 users). I had a problem that my connection gone when the application was in idle. So i add the connection.pool_size = 0 to the configuration. Now there is no problems with the connection. Is this a right solution? Or exists it a better one? For ... |
24. MySQL - too many connections problem forum.hibernate.orgsorry, i use hibernate 3... and the below are the datasource details, |
25. Hibernate MySql connection problem. forum.hibernate.orgIn MySql DB on my hosting set wait_timeout=60 but I can't change it b/c I haven't permission, after one minute appearse exception "could not execute query" and trace log in catalina.out log file. Question: What I need to add in my hibernate.cfg.xml file or what i need done for takinig connection alive??? Please help It's wary important!!! |
26. mysql connection closed forum.hibernate.orgNewbie Joined: Sat Aug 23, 2008 9:10 am Posts: 5 i'm using hibernate3. is my dao using the right way to retrieve object from mysql db ? i don't close connection, and i use hibernatesessionfactory.currentSession() to always get current session Code: public MyMember getMyMember(String name) { MyMember MyMember = new MyMember(); ... |
27. Connection problem with mySql forum.hibernate.orgI am using springframework and hibernate with MySql I have problem with connection as If once the connection lost with the MySql server It can not reconnect to MySql. If there is any mapping or property setting I missed please suggest me. I am using.... b]Hibernate version:[/b] Hibernate3 Mapping documents: Code: |
28. Problem establishing a connection with MySql database forum.hibernate.orgNewbie Joined: Tue Jul 14, 2009 5:17 am Posts: 1 Hi, I'm a student and I am trying to create a simple online questionnaire to collect information for a final year dissertation. I have wrote a small application using Struts, JSP, Hibernate to connect to a MySQL database. The application is running fine on my local development machine, but when I ... |