Romain i could connect to tomee using jconsole, how can i know if the connections are returning to the pool?
2014-02-13 11:32 GMT-06:00 Romain Manni-Bucau <rmannibu...@gmail.com>: > just run jconsole, connect to Bootstrap process and go in openejb.* in > MBean tab > 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 18:30 GMT+01:00 José Luis Cetina <maxtorz...@gmail.com>: > > Romain, is there any doc in tomee web page for jmx? in new with this > > > > > > 2014-02-13 11:24 GMT-06:00 Leonardo K. Shikida <shik...@gmail.com>: > > > >> Hi José > >> > >> in linux, you can dump the threads using kill -3 pid where pid is the > >> catalina process id > >> > >> [] > >> > >> Leo > >> > >> > >> On Thu, Feb 13, 2014 at 2:42 PM, José Luis Cetina <maxtorz...@gmail.com > >> >wrote: > >> > >> > Sorry for my ignorance but how do i check the thread stack? > >> > > >> > > >> > 2014-02-13 10:40 GMT-06:00 Romain Manni-Bucau <rmannibu...@gmail.com > >: > >> > > >> > > check your thread stack. Note a wrong config can make connections > not > >> > > returning to pool IIRC > >> > > 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 17:39 GMT+01:00 José Luis Cetina <maxtorz...@gmail.com>: > >> > > > 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* > >> > > > > ------------------------------------------------------------------- > >> > > > >> > > >> > > >> > > >> > -- > >> > ------------------------------------------------------------------- > >> > *José Luis Cetina* > >> > ------------------------------------------------------------------- > >> > > >> > > > > > > > > -- > > ------------------------------------------------------------------- > > *José Luis Cetina* > > ------------------------------------------------------------------- > -- ------------------------------------------------------------------- *José Luis Cetina* -------------------------------------------------------------------
