[opencms-dev] publish to multiple servers?

[John Krewson]

Maybe this is what you're looking for?
From: http://www.opencms.org/opencms/en/support/features.html


          Clustering for load balancing and failover

To ensure the availability of a website even in the case of hardware
failure, or to handle websites with high load, the OpenCms installation
can be clustered on several server machines. Common hardware solutions
like for example CISCO local director are fully supported. OpenCms will
automatically update all servers in the cluster if new content is published.



Keith Cheng wrote:

>Hi all,
>
>I am new with opencms but impressed with the nice and easy to use features. 
>However, in our enviornment, we have multiple web servers in different
>locations and currently we just copy the update content to these servers, very
>painful and error prone.
>
>I just wonder whether opencms has features to publish to more than one servers
>or such features are in planning for future?
>
>PS: I did a search on opencms web site with keywords "publish to multiple
>server" and I got an error messages with following stack trace:
>
>org.apache.jasper.JasperException: Resource loader error in file
>'/system/modules/com.alkacon.templates/pages/jsp_pages/search-code.jsp'
>
>Root cause:
>org.apache.jasper.JasperException: com.alkacon.htdig.HtdigSearchResult
>	at
>org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:248)
>	at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:295)
>	at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:241)
>	at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
>	at
>org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:684)
>	at
>org.apache.catalina.core.ApplicationDispatcher.doInclude(ApplicationDispatcher.java:575)
>	at
>org.apache.catalina.core.ApplicationDispatcher.include(ApplicationDispatcher.java:498)
>	at
>com.opencms.flex.cache.CmsFlexRequestDispatcher.include(CmsFlexRequestDispatcher.java:180)
>	at com.opencms.flex.CmsJspLoader.service(CmsJspLoader.java:955)
>	at
>com.opencms.flex.cache.CmsFlexRequestDispatcher.include(CmsFlexRequestDispatcher.java:268)
>	at
>com.opencms.flex.jsp.CmsJspTagInclude.includeTagAction(CmsJspTagInclude.java:370)
>	at
>com.opencms.flex.jsp.CmsJspActionElement.include(CmsJspActionElement.java:328)
>	at
>com.opencms.flex.jsp.CmsJspActionElement.include(CmsJspActionElement.java:263)
>	at org.apache.jsp.search_html_jsp._jspService(search_html_jsp.java:53)
>	at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:137)
>	at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
>	at
>org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:204)
>	at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:295)
>	at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:241)
>	at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
>	at
>org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:684)
>	at
>org.apache.catalina.core.ApplicationDispatcher.doInclude(ApplicationDispatcher.java:575)
>	at
>org.apache.catalina.core.ApplicationDispatcher.include(ApplicationDispatcher.java:498)
>	at
>com.opencms.flex.cache.CmsFlexRequestDispatcher.include(CmsFlexRequestDispatcher.java:180)
>	at com.opencms.flex.CmsJspLoader.service(CmsJspLoader.java:955)
>	at
>com.opencms.flex.cache.CmsFlexRequestDispatcher.include(CmsFlexRequestDispatcher.java:268)
>	at com.opencms.flex.CmsJspLoader.load(CmsJspLoader.java:567)
>	at com.opencms.flex.CmsJspLoader.initlaunch(CmsJspLoader.java:235)
>	at com.opencms.core.OpenCms.showResource(OpenCms.java:956)
>	at com.opencms.launcher.CmsLinkLauncher.launch(CmsLinkLauncher.java:103)
>	at com.opencms.launcher.A_CmsLauncher.initlaunch(A_CmsLauncher.java:274)
>	at com.opencms.core.OpenCms.showResource(OpenCms.java:956)
>	at com.opencms.core.OpenCmsHttpServlet.doGet(OpenCmsHttpServlet.java:310)
>	at com.opencms.core.OpenCmsHttpServlet.doPost(OpenCmsHttpServlet.java:331)
>	at javax.servlet.http.HttpServlet.service(HttpServlet.java:760)
>	at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
>	at
>org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:247)
>	at
>org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:193)
>	at
>org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:260)
>	at
>org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:643)
>	at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480)
>	at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
>	at
>org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
>	at
>org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:643)
>	at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480)
>	at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
>	at org.apache.catalina.core.StandardContext.invoke(StandardContext.java:2415)
>	at
>org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:180)
>	at
>org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:643)
>	at
>org.apache.catalina.valves.ErrorDispatcherValve.invoke(ErrorDispatcherValve.java:170)
>	at
>org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:641)
>	at
>org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:172)
>	at
>org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:641)
>	at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480)
>	at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
>	at
>org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:174)
>	at
>org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:643)
>	at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480)
>	at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
>	at org.apache.coyote.tomcat4.CoyoteAdapter.service(CoyoteAdapter.java:223)
>	at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:432)
>	at
>org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.processConnection(Http11Protocol.java:386)
>	at org.apache.tomcat.util.net.TcpWorkerThread.runIt(PoolTcpEndpoint.java:534)
>	at
>org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:530)
>	at java.lang.Thread.run(Thread.java:536)
>
>--------------- End of root cause.
>
>	at
>org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:248)
>	at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:295)
>	at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:241)
>	at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
>	at
>org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:684)
>	at
>org.apache.catalina.core.ApplicationDispatcher.doInclude(ApplicationDispatcher.java:575)
>	at
>org.apache.catalina.core.ApplicationDispatcher.include(ApplicationDispatcher.java:498)
>	at
>com.opencms.flex.cache.CmsFlexRequestDispatcher.include(CmsFlexRequestDispatcher.java:180)
>	at com.opencms.flex.CmsJspLoader.service(CmsJspLoader.java:955)
>	at
>com.opencms.flex.cache.CmsFlexRequestDispatcher.include(CmsFlexRequestDispatcher.java:268)
>	at com.opencms.flex.CmsJspLoader.load(CmsJspLoader.java:567)
>	at com.opencms.flex.CmsJspLoader.initlaunch(CmsJspLoader.java:235)
>	at com.opencms.core.OpenCms.showResource(OpenCms.java:956)
>	at com.opencms.launcher.CmsLinkLauncher.launch(CmsLinkLauncher.java:103)
>	at com.opencms.launcher.A_CmsLauncher.initlaunch(A_CmsLauncher.java:274)
>	at com.opencms.core.OpenCms.showResource(OpenCms.java:956)
>	at com.opencms.core.OpenCmsHttpServlet.doGet(OpenCmsHttpServlet.java:310)
>	at com.opencms.core.OpenCmsHttpServlet.doPost(OpenCmsHttpServlet.java:331)
>	at javax.servlet.http.HttpServlet.service(HttpServlet.java:760)
>	at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
>	at
>org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:247)
>	at
>org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:193)
>	at
>org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:260)
>	at
>org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:643)
>	at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480)
>	at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
>	at
>org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
>	at
>org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:643)
>	at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480)
>	at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
>	at org.apache.catalina.core.StandardContext.invoke(StandardContext.java:2415)
>	at
>org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:180)
>	at
>org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:643)
>	at
>org.apache.catalina.valves.ErrorDispatcherValve.invoke(ErrorDispatcherValve.java:170)
>	at
>org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:641)
>	at
>org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:172)
>	at
>org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:641)
>	at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480)
>	at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
>	at
>org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:174)
>	at
>org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:643)
>	at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480)
>	at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
>	at org.apache.coyote.tomcat4.CoyoteAdapter.service(CoyoteAdapter.java:223)
>	at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:432)
>	at
>org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.processConnection(Http11Protocol.java:386)
>	at org.apache.tomcat.util.net.TcpWorkerThread.runIt(PoolTcpEndpoint.java:534)
>	at
>org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:530)
>	at java.lang.Thread.run(Thread.java:536)
>
>
>Regards,
>-- Keith Cheng
>
>
>_________________________________________________________
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