Unmesh Kulkarni [http://community.jboss.org/people/unmesh_kulkarni] created the discussion "MySQL problem with multiple instances of JBOSS" To view the discussion, visit: http://community.jboss.org/message/584318#584318 -------------------------------------------------------------- I have setup two IPs on my machine. eth0      Link encap:Ethernet  HWaddr 00:0C:29:B3:6B:25           inet addr:192.168.6.128  Bcast:192.168.6.255  Mask:255.255.255.0           inet6 addr: fe80::20c:29ff:feb3:6b25/64 Scope:Link           UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1           RX packets:921323 errors:0 dropped:0 overruns:0 frame:0           TX packets:127221 errors:0 dropped:0 overruns:0 carrier:0           collisions:0 txqueuelen:1000           RX bytes:721968842 (688.5 MiB)  TX bytes:12898679 (12.3 MiB) eth0:1    Link encap:Ethernet  HWaddr 00:0C:29:B3:6B:25           inet addr:192.168.6.129  Bcast:192.168.6.255  Mask:255.255.255.0           UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1 I am starting up two instances of JBOSS AS 6.0.0 Final on the same server using -b option. /etc/jboss-as/testenv1/bin/run.sh -c testenv1 -b 192.168.6.128 /etc/jboss-as/testenv2/bin/run.sh -c testenv2 -b 192.168.6.129 I have two databases, *testenv1* & *testenv2* on MySQL Server installed on same machine. +--------------------+ | Database           | +--------------------+ | information_schema | | mysql              | | test               | | testenv1           | | testenv2           | +--------------------+ Also I have two dedicated users testenv1 and testenv2 for connecting those databases. +----------+---------------+ | user     | host          | +----------+---------------+ | admin    | %             | | root     | 127.0.0.1     | | *testenv1 | 192.168.6.128 |* | *testenv2 | 192.168.6.129 |* |          | JBOSS-SS      | | root     | JBOSS-SS      | |          | localhost     | | root     | localhost     | +----------+---------------+ They have been setup such a way that testenv1 user will have access to tesnv1 database from 192.168.6.128 and testenv2 user will have access to testenv2 databse from 192.168.6.129. I have attached datasource files which I am using. Here is a code which i have deployed on both the servers for testing JDBC connectivity <%   DataSource ds = null;   Connection con = null;   PreparedStatement pr = null;   InitialContext ic;   try {   ic = new InitialContext();   ds = (DataSource)ic.lookup( "java:/MySqlDS" );   con = ds.getConnection();   pr = con.prepareStatement("SELECT * FROM jdbctest");   ResultSet rs = pr.executeQuery();   while (rs.next()) {   out.println("<br> " +rs.getString("comp_inst_status"));   }   rs.close();   pr.close();   }catch(Exception e){   out.println("Exception thrown " +e);   }finally{   if(con != null){   con.close(); }      } %> When I access my JSP from first instance (i.e. 192.168.6.128 ) it works fine but when I access it from other server it fails. It gives following exception *Caused by: java.sql.SQLException: Access denied for user &#39;testenv2&#39;(a)&#39;**192.168.6.128**&#39; (using password: YES)*         at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:1073) [:]         at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3593) [:]         at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3525) [:]         at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:931) [:]         at com.mysql.jdbc.MysqlIO.secureAuth411(MysqlIO.java:4031) [:]         at com.mysql.jdbc.MysqlIO.doHandshake(MysqlIO.java:1296) [:]         at com.mysql.jdbc.ConnectionImpl.coreConnect(ConnectionImpl.java:2338) [:]         at com.mysql.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:2371) [:]         at com.mysql.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:2163) [:]         at com.mysql.jdbc.ConnectionImpl.<init>(ConnectionImpl.java:794) [:]         at com.mysql.jdbc.JDBC4Connection.<init>(JDBC4Connection.java:47) [:]         at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) [:1.6.0_23]         at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39) [:1.6.0_23]         at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27) [:1.6.0_23]         at java.lang.reflect.Constructor.newInstance(Constructor.java:513) [:1.6.0_23]         at com.mysql.jdbc.Util.handleNewInstance(Util.java:407) [:]         at com.mysql.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:378) [:]         at com.mysql.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:305) [:] As the user testenv2 is not having access rights from *192.168.6.128* it throws exception. But I have bound testenv2 instance on 192.168.6.129 but still it tries to access MySQL from 192.168.6.128. Any idea if I am missing anything in configuration? -------------------------------------------------------------- Reply to this message by going to Community [http://community.jboss.org/message/584318#584318] Start a new discussion in Datasource Configuration at Community [http://community.jboss.org/choose-container!input.jspa?contentType=1&...]