-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Hi,
I'm developing a drmaa application which should run on the tomcat application server with axis. The web front end accesses the application through web services (wsdl). The application works pretty fine, if it is started from command line. But if I'm using the web services the following error occurs frequently: java.lang.UnsatisfiedLinkError: Native Library /opt/SGE/lib/lx26-amd64/libdrmaa.so already loaded in another classloader java.lang.ClassLoader.loadLibrary0(ClassLoader.java:1716) java.lang.ClassLoader.loadLibrary(ClassLoader.java:1676) java.lang.Runtime.loadLibrary0(Runtime.java:822) java.lang.System.loadLibrary(System.java:992) com.sun.grid.drmaa.SessionImpl$1.run(SessionImpl.java:58) java.security.AccessController.doPrivileged(Native Method) com.sun.grid.drmaa.SessionImpl.(SessionImpl.java:56) com.sun.grid.drmaa.SessionFactoryImpl.getSession(SessionFactoryImpl.java:59) cef.VirtualJob.startDRMAAJob(VirtualJob.java:591) cef.VirtualBlastJob.startJob(VirtualBlastJob.java:212) cef.ClusterMaster.startNewJob(ClusterMaster.java:91) cef.BlastAllWebService.startNewJob(BlastAllWebService.java:47) org.apache.jsp.sampleBlastAllWebService.Result_jsp._jspService(Result_jsp.java:81) org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:97) javax.servlet.http.HttpServlet.service(HttpServlet.java:802) org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:332) org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:314) org.apache.jasper.servlet.JspServlet.service(JspServlet.java:264) javax.servlet.http.HttpServlet.service(HttpServlet.java:802) After this error every other drmaa web service call results the following error: java.lang.NoClassDefFoundError com.sun.grid.drmaa.SessionFactoryImpl.getSession(SessionFactoryImpl.java:59) cef.VirtualJob.startDRMAAJob(VirtualJob.java:591) cef.VirtualBlastJob.startJob(VirtualBlastJob.java:212) cef.ClusterMaster.startNewJob(ClusterMaster.java:91) cef.BlastAllWebService.startNewJob(BlastAllWebService.java:47) org.apache.jsp.sampleBlastAllWebService.Result_jsp._jspService(Result_jsp.java:81) org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:97) javax.servlet.http.HttpServlet.service(HttpServlet.java:802) org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:332) org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:314) org.apache.jasper.servlet.JspServlet.service(JspServlet.java:264) javax.servlet.http.HttpServlet.service(HttpServlet.java:802) After restarting the tomcat and the grid engine the application is working for some web service calls, until the UnsatisfiedLinkError occurs. I'm using the following environment: Linux Sun Grid Engine SGE 6.0u4 6.0u4 DRMAA.JAR jdk1.5.0_06 Tomcat 5.5 Axis 1.3 I think something is going wrong the the factory.getSession() call, but I dont't know why. All my sessions are closed (via session.exit()) on exit of the application. So there should be no conflict with the drmaa library. Is it possible that tomcat tries to load the libdrmaa.so more than once, if one user calls different methods of the web service or multiple users using the web services? Best regards Stefan Metzlaff -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.1 (GNU/Linux) iD8DBQFEOs1umaoB5W5tYLoRAhijAJ9o3oXFqyeM9FeDXcdk3AGXu20c8ACaAi60 3mKCe8bbM8mg/fAz9jivJ0I= =l+39 -----END PGP SIGNATURE----- --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
