throwing a error while opening smart client.

Classic Servoy
1

Hi All,

I am getting error “solution cannot open” while launching smart client at remote system.

Here it is log details of the error.

com.mysql.jdbc.CommunicationsException: Communications link failure due to underlying exception: ** BEGIN NESTED EXCEPTION ** java.net.SocketException MESSAGE: Software caused connection abort: socket write error STACKTRACE: java.net.SocketException: Software caused connection abort: socket write error at java.net.SocketOutputStream.socketWrite0(Native Method) at java.net.SocketOutputStream.socketWrite(Unknown Source) at java.net.SocketOutputStream.write(Unknown Source) at java.io.BufferedOutputStream.flushBuffer(Unknown Source) at java.io.BufferedOutputStream.flush(Unknown Source) at com.mysql.jdbc.MysqlIO.send(MysqlIO.java:2637) at com.mysql.jdbc.MysqlIO.sendCommand(MysqlIO.java:1554) at com.mysql.jdbc.MysqlIO.sqlQueryDirect(MysqlIO.java:1665) at com.mysql.jdbc.Connection.execSQL(Connection.java:3124) at com.mysql.jdbc.PreparedStatement.executeInternal(PreparedStatement.java:1149) at com.mysql.jdbc.PreparedStatement.executeQuery(PreparedStatement.java:1262) at sun.reflect.GeneratedMethodAccessor190.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) at java.lang.reflect.Method.invoke(Unknown Source) at com.servoy.j2db.persistence.datasource.p.invoke(Unknown Source) at $Proxy0.executeQuery(Unknown Source) at org.apache.commons.dbcp.DelegatingPreparedStatement.executeQuery(DelegatingPreparedStatement.java:179) at org.apache.commons.dbcp.DelegatingPreparedStatement.executeQuery(DelegatingPreparedStatement.java:179) at org.apache.commons.dbcp.DelegatingPreparedStatement.executeQuery(DelegatingPreparedStatement.java:179) at com.servoy.j2db.dataprocessing.SQLEngine.a(Unknown Source) at com.servoy.j2db.dataprocessing.SQLEngine.a(Unknown Source) at com.servoy.j2db.dataprocessing.SQLEngine.performQuery(Unknown Source) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) at java.lang.reflect.Method.invoke(Unknown Source) at sun.rmi.server.UnicastServerRef.dispatch(Unknown Source) at sun.rmi.transport.Transport$1.run(Unknown Source) at java.security.AccessController.doPrivileged(Native Method) at sun.rmi.transport.Transport.serviceCall(Unknown Source) at sun.rmi.transport.tcp.TCPTransport.handleMessages(Unknown Source) at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run0(Unknown Source) at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run(Unknown Source) at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(Unknown Source) at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source) at java.lang.Thread.run(Unknown Source) ** END NESTED EXCEPTION ** Last packet sent to the server was 0 ms ago.
at com.mysql.jdbc.MysqlIO.send(MysqlIO.java:2652)
at com.mysql.jdbc.MysqlIO.sendCommand(MysqlIO.java:1554)
at com.mysql.jdbc.MysqlIO.sqlQueryDirect(MysqlIO.java:1665)
at com.mysql.jdbc.Connection.execSQL(Connection.java:3124)
at com.mysql.jdbc.PreparedStatement.executeInternal(PreparedStatement.java:1149)
at com.mysql.jdbc.PreparedStatement.executeQuery(PreparedStatement.java:1262)
at sun.reflect.GeneratedMethodAccessor190.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at com.servoy.j2db.persistence.datasource.p.invoke(Unknown Source)
at $Proxy0.executeQuery(Unknown Source)
at org.apache.commons.dbcp.DelegatingPreparedStatement.executeQuery(DelegatingPreparedStatement.java:179)
at org.apache.commons.dbcp.DelegatingPreparedStatement.executeQuery(DelegatingPreparedStatement.java:179)
at org.apache.commons.dbcp.DelegatingPreparedStatement.executeQuery(DelegatingPreparedStatement.java:179)
at com.servoy.j2db.dataprocessing.SQLEngine.a(Unknown Source)
at com.servoy.j2db.dataprocessing.SQLEngine.a(Unknown Source)
at com.servoy.j2db.dataprocessing.SQLEngine.performQuery(Unknown Source)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at sun.rmi.server.UnicastServerRef.dispatch(Unknown Source)
at sun.rmi.transport.Transport$1.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at sun.rmi.transport.Transport.serviceCall(Unknown Source)
at sun.rmi.transport.tcp.TCPTransport.handleMessages(Unknown Source)
at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run0(Unknown Source)
at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)

When i am launching client first time it give the above error. When i am re-open the solution it re-opened the solution.

How can i resolve this error?

Servoy 4.0.1
Database MySql
Java version - Version 1.6.0(build 1.6.0-b105)
OS - WindowsXp

Thanks
Prem

2

After some idle time mysql closes socket so first connection attempt will fail. Just increase the wait time for mysql server ( or google the error for more info).

3

Prem, have a look at my MySQL&Servoy Howto, it’s a bit outdated but still useful. You can download it from my website.

4

This is the most important quote from that document

Because otherwise the Servoy Forum would be a boring place

:)

5

LOL :D