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 <[email protected]>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 <[email protected]>: > > > 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 <[email protected]>: > > > > 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 <[email protected]>: > >> > 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* > ------------------------------------------------------------------- >
