Ok. At this moment my webapp in production is loggin me:
SEVERE: EjbTransactionUtil.handleSystemException: [ajp-bio-8009-exec-1458] Timeout: Pool empty. Unable to fetch a connection in 90 seconds, none available[size:250; busy:250; idle:0; lastwait:90000]. Pool empty, it means my 250 of 250 are using it? Any advice? 2014-02-13 10:35 GMT-06:00 Romain Manni-Bucau <rmannibu...@gmail.com>: > No it is fine. > Romain Manni-Bucau > Twitter: @rmannibucau > Blog: http://rmannibucau.wordpress.com/ > LinkedIn: http://fr.linkedin.com/in/rmannibucau > Github: https://github.com/rmannibucau > > > > 2014-02-13 17:18 GMT+01:00 José Luis Cetina <maxtorz...@gmail.com>: > > Thanks i already readed. Maybe what is happen is that my webapps are not > > returning to the pool the database connection. > > > > I have a question: > > > > If i have a stateles bean using an entitymanager and doing any kind of > > operation in the database, when my method returns the connections is the > > connections is closed and returned to the pool?? do i missing something? > > > > > > //All my ejbs are like this > > @Stateless > > @TransactionManagement(TransactionManagementType.CONTAINER) > > public class ConektaComprasOnlineGeneradasFacade{ > > > > @PersistenceContext(unitName = "anyName") > > private EntityManager em; > > > > @TransactionAttribute(TransactionAttributeType.REQUIRED) > > public void doSomeStuff(){ > > MyObject x = new MyObject(); > > em.persist(x); > > //when this method is finished and the commit its done the > database > > connection is returned to the pool? do i have to close it? > > } > > > > } > > > > > > Thanks > > > > > > > > 2014-02-13 9:51 GMT-06:00 Howard W. Smith, Jr. <smithh032...@gmail.com>: > > > >> also, this one, and you can reach out to tomcat user list, too... > >> > >> > >> > http://blog.christopherschultz.net/index.php/2009/03/16/properly-handling-pooled-jdbc-connections/ > >> > >> > >> > >> On Thu, Feb 13, 2014 at 10:34 AM, José Luis Cetina < > maxtorz...@gmail.com > >> >wrote: > >> > >> > Then if tomee use tomcat-pool is this where the info really is? > >> > > >> > https://tomcat.apache.org/tomcat-7.0-doc/jdbc-pool.html not here > >> > http://commons.apache.org/proper/commons-dbcp/configuration.html > >> > > >> > > >> > 2014-02-13 9:32 GMT-06:00 José Luis Cetina <maxtorz...@gmail.com>: > >> > > >> > > What about this info in tomee web page > >> > > > >> > > "Internally, from TomEE 1.5.0, JDBC pools are managed via > Tomcat-pool. > >> > You > >> > > can still switch back to Apache Commons DBCP by adding the following > >> > > property: DataSourceCreator dbcp. To get the full list of available > >> > > configuration properties, have a look to Apache Commons DBCP > >> > configuration<http://commons.apache.org/dbcp/configuration.html> > >> > > ." > >> > > > >> > > What is the difference between tomcat pool and dbcp, they share the > >> same > >> > > properties? > >> > > > >> > > > >> > > 2014-02-13 9:23 GMT-06:00 Romain Manni-Bucau <rmannibu...@gmail.com > >: > >> > > > >> > > Hi, > >> > >> > >> > >> some read > >> > >> http://commons.apache.org/proper/commons-dbcp/configuration.html;) > >> > >> Romain Manni-Bucau > >> > >> Twitter: @rmannibucau > >> > >> Blog: http://rmannibucau.wordpress.com/ > >> > >> LinkedIn: http://fr.linkedin.com/in/rmannibucau > >> > >> Github: https://github.com/rmannibucau > >> > >> > >> > >> > >> > >> > >> > >> 2014-02-13 16:21 GMT+01:00 José Luis Cetina <maxtorz...@gmail.com > >: > >> > >> > Hi, im having about 180 users at the same time connected to my > >> webapp, > >> > >> > yesterday i got an mysql exception saying "Ton many connections" > >> then > >> > i > >> > >> > read in blogs and update the property max_connections in my.cnf > to > >> 500 > >> > >> > connections (i have a stand alone server for database only that > has > >> > >> 16gb of > >> > >> > ram just for the OS and the DB) then in that post recommend to > >> adjust > >> > >> that > >> > >> > value (max_connections) accord to my pool connection. I use a > >> > datasource > >> > >> > resource configured in tomee.xml and i have this > >> > >> > > >> > >> > <Resource id="any" type="DataSource"> > >> > >> > JdbcDriver com.mysql.jdbc.Driver > >> > >> > JdbcUrl ... > >> > >> > UserName xxx > >> > >> > Password xxx > >> > >> > jtaManaged true > >> > >> > initialSize=30 > >> > >> > MaxActive=500 (my old value was 250) > >> > >> > MaxIdle=50 > >> > >> > MaxWait=90000 > >> > >> > MaxWaitTime=90000 > >> > >> > validationQuery=SELECT 1 > >> > >> > testOnBorrow=true > >> > >> > </Resource> > >> > >> > > >> > >> > Then i have this questions: > >> > >> > > >> > >> > 1.What advice can you give me for handle around 180 users that > use > >> my > >> > >> app > >> > >> > an hit the database with each action. > >> > >> > I use JSF (@NamedBeans) + EJB (All my EJBS are statless) + 1 > >> > SessionBean > >> > >> > (@Named) for each users. > >> > >> > > >> > >> > 2. Which is the difference between MaxIdle and MaxActive? > >> > >> > > >> > >> > 3. Which is the default timeout for close inactive connections > and > >> > what > >> > >> is > >> > >> > the name of the property? > >> > >> > > >> > >> > > >> > >> > > >> > >> > I will be happy with any kind of advice. > >> > >> > > >> > >> > I use 2 servers with this configuration and tomee and both of > them > >> > read > >> > >> to > >> > >> > other server where the database is (2 webapp server + 1 db > server). > >> > >> > > >> > >> > > >> > >> > > >> > >> > > >> > >> > > ------------------------------------------------------------------- > >> > >> > *José Luis Cetina* > >> > >> > > ------------------------------------------------------------------- > >> > >> > >> > > > >> > > > >> > > > >> > > -- > >> > > ------------------------------------------------------------------- > >> > > *José Luis Cetina* > >> > > ------------------------------------------------------------------- > >> > > > >> > > >> > > >> > > >> > -- > >> > ------------------------------------------------------------------- > >> > *José Luis Cetina* > >> > ------------------------------------------------------------------- > >> > > >> > > > > > > > > -- > > ------------------------------------------------------------------- > > *José Luis Cetina* > > ------------------------------------------------------------------- > -- ------------------------------------------------------------------- *José Luis Cetina* -------------------------------------------------------------------
