2015-02-03 12:44 GMT+03:00 Vadzim Radchykau <v_radchy...@adamantium.net>: > Hello, everybody! I have a question about context config in Tomcat 8. I > migrating project from Tomcat 7 to 8 and have unusual problem: if nothing > change in cofig I catched an error: > "2015-02-03 12:05:48,310 FIRST_ADMIN ERROR web.context.ContextLoader:331 > -> Context initialization failed > org.springframework.jmx.export.UnableToRegisterMBeanException: Unable to > register MBean [org.apache.tomcat.dbcp.dbcp2.BasicDataSource@434990dd] with > key 'dataSource'; nested exception is > javax.management.InstanceAlreadyExistsException: > > Catalina:type=DataSource,host=localhost,context=/first-admin,class=javax.sql.DataSource,name="jdbc/datasource/first" > > Part of context: > <Resource name="jdbc/datasource/first" > auth="Container" > type="javax.sql.DataSource" > poolPreparedStatements="true" > initialSize="25" > maxActive="100" > maxIdle="100" > minIdle="25" > username="us" > password="pa" > driverClassName="com.mysql.jdbc.Driver" > validationQuery="select 1" > testOnBorrow="true" > > > url="jdbc:mysql://localhost:3306/firstproject?useUnicode=true&characterEncoding=UTF-8&profileSQL=false&autoSlowLog=false&slowQueryThresholdMillis=100&autoReconnect=true"/> > > So, it's works in tomcat 7 without any proble. In Tomcat 8 I can solve this > problem in 2 ways: > 1. By adding to resource: singleton = "false"; > 2. By adding to resource: > factory="org.apache.tomcat.jdbc.pool.DataSourceFactory" > > If I clearly understand tomcat creates datasource for my app and for jmx, > but in Tomcat 7 it was single object, in Tomcat 8 it must be differents. So > my question is why that situation is happend? I coudn't find any > information of this change in documentation. And I'm interesting what is > better: create single datasource (I think so) or create several by factory. > Thanks a lot for help!
1. Full stacktrace of javax.management.InstanceAlreadyExistsException =? 2. Exact version of Tomcat 8.0.x = ? I suspect that you are using some old version, as the last time I remember hearing about similar issues was ~2 years ago. Best regards, Konstantin Kolinko --------------------------------------------------------------------- To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
