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Posted to jetspeed-user@portals.apache.org by Santiago Gala <sg...@hisitech.com> on 2002/04/01 20:00:23 UTC
RE: Jetspeed intermitant slowness.
El sáb, 30-03-2002 a las 00:44, David Sean Taylor escribió:
> > From the SOAP exception, I guess you are using the Stock
> > Quote Portlet - this is connecting to a SOAP service over the
> > net - perhaps there are delays on that end.
>
> >From what I hear that particular web service provider is pretty iffy ;)
>
> This give me an idea for a new story:
>
> Timeouts on content generation.
> If a portlet doesn't generate its content within n seconds (or ms), then
> skip its content generation and move on to the next portlet. The timeout
> setting will be configurable in the JR.p.
>
>
> This leads to another story: multi-threaded generation of content.
> (Lets save that for next time)
>
>
Having the engine proactively acting to avoid latency during content
generation is good. On the other hand, a reasonable workaround can be
designed by the portlet writer. This is what the JetspeedDiskCache tries
to do.
The reason why the JetspeedDiskCache was written was exactly this one:
RSS content was originally fetched for every request and this was rather
slow, and also we were sending a lot of requests to the content servers.
The contract that currently is implicit in JetspeedDiskCache is as
follows:
- any URL will be fetched at most once in parallel (other requests will
wait for the first one to complete, and then get the cached results).
- the minimal timeout in config: cache.default.expiration=(default 900)
implies that any external URL which does not specify expiration will be
fetched at most once in this period of time
- While an entry has not expired, the cached content will be delivered
to the rest of Jetspeed, and this is expected to be fast.
This means that we can trade off and have less current content delivered
but better response time, or the other way round, very current content
but higher latency.
While I know the caching stuff needs definitely a rewrite, I think such
a kind of mechanism is very required for any serious portal engine.
We could extend such mechanisms to SOAP based RPC stuff, and avoid
hitting the server (and delaying the answer) while the current content
is considered valid.
I am not familiar with what the different Web Services specification say
about temporal validity of the result, but it would be worth to research
for it.
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Cannot get portal page with latest development tree
Posted by da...@gatewaynetworks.com.
Hi all,
I grabbed the latest source code from CVS, build it on Linux with 'build.sh
war', copied the war file to webapps directory and restarted tomcat to build
the jetspeed application directory. After doing so, I pointed my browser at
jetspeed (http://portal:8180/jetspeed) and never receive a portal page. I
do, however, see the following error in the jetspeed.log file.
Any ideas what configuration change I need to make to get this working? I
have previously installed the 1.3a2 binary build successfully so I know it
can work. I did remove the previous jetspeed webapp directory before
installing the source build.
Thanks
dave
[Thu Apr 04 00:19:03 EST 2002] -- DEBUG -- template exists:
/var/tomcat4/webapps/jetspeed/WEB-INF/templates/vm/layouts/html/default.vm
returning /html/default.vm
[Thu Apr 04 00:19:03 EST 2002] -- DEBUG -- JetspeedTemplatePage:
layoutTemplate is finally /html/default.vm
[Thu Apr 04 00:19:05 EST 2002] -- ERROR -- Error rendering Velocity
template: layouts/html/default.vm: Invocation of method 'getDocument' in
class org.apache.jetspeed.om.profile.BaseProfile threw exception class
java.lang.NoSuchMethodError :
org.apache.jetspeed.om.profile.PSMLDocument.getPortlets()Lorg/apache/jetspee
d/xml/api/portletmarkup/Portlets;
[Thu Apr 04 00:19:05 EST 2002] -- ERROR -- Turbine.handleException: Error
rendering Velocity template: layouts/html/default.vm: Invocation of method
'getDocument' in class org.apache.jetspeed.om.profile.BaseProfile threw
exception class java.lang.NoSuchMethodError :
org.apache.jetspeed.om.profile.PSMLDocument.getPortlets()Lorg/apache/jetspee
d/xml/api/portletmarkup/Portlets;
[Thu Apr 04 00:19:05 EST 2002] -- ERROR --
Exception: org.apache.turbine.util.TurbineException: Error rendering
Velocity template: layouts/html/default.vm: Invocation of method
'getDocument' in class org.apache.jetspeed.om.profile.BaseProfile threw
exception class java.lang.NoSuchMethodError :
org.apache.jetspeed.om.profile.PSMLDocument.getPortlets()Lorg/apache/jetspee
d/xml/api/portletmarkup/Portlets;
Stack Trace follows:
org.apache.velocity.exception.MethodInvocationException: Invocation of
method 'getDocument' in class org.apache.jetspeed.om.profile.BaseProfile
threw exception class java.lang.NoSuchMethodError :
org.apache.jetspeed.om.profile.PSMLDocument.getPortlets()Lorg/apache/jetspee
d/xml/api/portletmarkup/Portlets;
at
org.apache.velocity.runtime.parser.node.PropertyExecutor.execute(PropertyExe
cutor.java:188)
at
org.apache.velocity.runtime.parser.node.ASTIdentifier.execute(ASTIdentifier.
java:226)
at
org.apache.velocity.runtime.parser.node.ASTReference.execute(ASTReference.ja
va:207)
at
org.apache.velocity.runtime.parser.node.ASTReference.render(ASTReference.jav
a:250)
at
org.apache.velocity.runtime.parser.node.SimpleNode.render(SimpleNode.java:27
1)
at org.apache.velocity.Template.merge(Template.java:296)
at org.apache.velocity.app.Velocity.mergeTemplate(Velocity.java:492)
at org.apache.velocity.app.Velocity.mergeTemplate(Velocity.java:461)
rethrown as org.apache.turbine.util.TurbineException: Error rendering
Velocity template: layouts/html/default.vm: Invocation of method
'getDocument' in class org.apache.jetspeed.om.profile.BaseProfile threw
exception class java.lang.NoSuchMethodError :
org.apache.jetspeed.om.profile.PSMLDocument.getPortlets()Lorg/apache/jetspee
d/xml/api/portletmarkup/Portlets;
at
org.apache.turbine.services.velocity.TurbineVelocityService.renderingError(T
urbineVelocityService.java:524)
at
org.apache.turbine.services.velocity.TurbineVelocityService.decodeRequest(Tu
rbineVelocityService.java:490)
at
org.apache.turbine.services.velocity.TurbineVelocityService.handleRequest(Tu
rbineVelocityService.java:327)
at
org.apache.turbine.services.velocity.TurbineVelocity.handleRequest(TurbineVe
locity.java:146)
at
org.apache.turbine.modules.layouts.VelocityDirectLayout.doBuild(VelocityDire
ctLayout.java:106)
at org.apache.turbine.modules.Layout.build(Layout.java:91)
at org.apache.turbine.modules.LayoutLoader.exec(LayoutLoader.java:123)
at
org.apache.turbine.modules.pages.DefaultPage.doBuild(DefaultPage.java:169)
at org.apache.turbine.modules.Page.build(Page.java:90)
at org.apache.turbine.modules.PageLoader.exec(PageLoader.java:123)
at org.apache.turbine.Turbine.doGet(Turbine.java:580)
at javax.servlet.http.HttpServlet.service(HttpServlet.java)
at javax.servlet.http.HttpServlet.service(HttpServlet.java)
at
org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.
java:683)
at
org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatch
er.java:431)
at
org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher
.java:355)
at
org.apache.jasper.runtime.PageContextImpl.forward(PageContextImpl.java:414)
at org.apache.jsp.index$jsp._jspService(index$jsp.java:57)
at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:107)
at javax.servlet.http.HttpServlet.service(HttpServlet.java)
at
org.apache.jasper.servlet.JspServlet$JspServletWrapper.service(JspServlet.ja
va:202)
at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:382)
at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:474)
at javax.servlet.http.HttpServlet.service(HttpServlet.java)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Application
FilterChain.java:247)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterCh
ain.java:193)
at
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.ja
va:243)
at
org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:5
66)
at
org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:472)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:943)
at
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.ja
va:190)
at
org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:5
66)
at
org.apache.catalina.valves.CertificatesValve.invoke(CertificatesValve.java:2
46)
at
org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:5
64)
at
org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:472)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:943)
at
org.apache.catalina.core.StandardContext.invoke(StandardContext.java:2343)
at
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:180
)
at
org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:5
66)
at
org.apache.catalina.valves.ErrorDispatcherValve.invoke(ErrorDispatcherValve.
java:170)
at
org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:5
64)
at
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:170
)
at
org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:5
64)
at
org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:468)
at
org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:5
64)
at
org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:472)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:943)
at
org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java
:174)
at
org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:5
66)
at
org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:472)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:943)
at
org.apache.catalina.connector.http.HttpProcessor.process(HttpProcessor.java:
1012)
at
org.apache.catalina.connector.http.HttpProcessor.run(HttpProcessor.java:1107
)
at java.lang.Thread.run(Thread.java:536)
[Thu Apr 04 00:19:05 EST 2002] -- ERROR -- Error rendering Velocity
template: layouts/default.vm: Unable to find resource 'layouts/default.vm'
[Thu Apr 04 00:19:05 EST 2002] -- ERROR -- Error rendering Velocity
template: layouts/default.vm: Unable to find resource 'layouts/default.vm'
Exception: org.apache.turbine.util.TurbineException: Error rendering
Velocity template: layouts/default.vm: Unable to find resource
'layouts/default.vm'
Stack Trace follows:
org.apache.velocity.exception.ResourceNotFoundException: Unable to find
resource 'layouts/default.vm'
at
org.apache.velocity.runtime.resource.ResourceManagerImpl.loadResource(Resour
ceManagerImpl.java:501)
at
org.apache.velocity.runtime.resource.ResourceManagerImpl.getResource(Resourc
eManagerImpl.java:384)
at
org.apache.velocity.runtime.RuntimeInstance.getTemplate(RuntimeInstance.java
:812)
at
org.apache.velocity.runtime.RuntimeSingleton.getTemplate(RuntimeSingleton.ja
va:355)
at org.apache.velocity.app.Velocity.mergeTemplate(Velocity.java:482)
at org.apache.velocity.app.Velocity.mergeTemplate(Velocity.java:461)
rethrown as org.apache.turbine.util.TurbineException: Error rendering
Velocity template: layouts/default.vm: Unable to find resource
'layouts/default.vm'
at
org.apache.turbine.services.velocity.TurbineVelocityService.renderingError(T
urbineVelocityService.java:524)
at
org.apache.turbine.services.velocity.TurbineVelocityService.decodeRequest(Tu
rbineVelocityService.java:490)
at
org.apache.turbine.services.velocity.TurbineVelocityService.handleRequest(Tu
rbineVelocityService.java:327)
at
org.apache.turbine.services.velocity.TurbineVelocity.handleRequest(TurbineVe
locity.java:146)
at
org.apache.turbine.modules.layouts.VelocityDirectLayout.doBuild(VelocityDire
ctLayout.java:106)
at org.apache.turbine.modules.Layout.build(Layout.java:91)
at org.apache.turbine.modules.LayoutLoader.exec(LayoutLoader.java:123)
at
org.apache.turbine.modules.pages.DefaultPage.doBuild(DefaultPage.java:169)
at org.apache.turbine.modules.Page.build(Page.java:90)
at org.apache.turbine.modules.PageLoader.exec(PageLoader.java:123)
at org.apache.turbine.Turbine.handleException(Turbine.java:740)
at org.apache.turbine.Turbine.doGet(Turbine.java:645)
at javax.servlet.http.HttpServlet.service(HttpServlet.java)
at javax.servlet.http.HttpServlet.service(HttpServlet.java)
at
org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.
java:683)
at
org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatch
er.java:431)
at
org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher
.java:355)
at
org.apache.jasper.runtime.PageContextImpl.forward(PageContextImpl.java:414)
at org.apache.jsp.index$jsp._jspService(index$jsp.java:57)
at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:107)
at javax.servlet.http.HttpServlet.service(HttpServlet.java)
at
org.apache.jasper.servlet.JspServlet$JspServletWrapper.service(JspServlet.ja
va:202)
at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:382)
at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:474)
at javax.servlet.http.HttpServlet.service(HttpServlet.java)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Application
FilterChain.java:247)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterCh
ain.java:193)
at
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.ja
va:243)
at
org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:5
66)
at
org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:472)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:943)
at
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.ja
va:190)
at
org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:5
66)
at
org.apache.catalina.valves.CertificatesValve.invoke(CertificatesValve.java:2
46)
at
org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:5
64)
at
org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:472)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:943)
at
org.apache.catalina.core.StandardContext.invoke(StandardContext.java:2343)
at
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:180
)
at
org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:5
66)
at
org.apache.catalina.valves.ErrorDispatcherValve.invoke(ErrorDispatcherValve.
java:170)
at
org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:5
64)
at
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:170
)
at
org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:5
64)
at
org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:468)
at
org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:5
64)
at
org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:472)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:943)
at
org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java
:174)
at
org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:5
66)
at
org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:472)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:943)
at
org.apache.catalina.connector.http.HttpProcessor.process(HttpProcessor.java:
1012)
at
org.apache.catalina.connector.http.HttpProcessor.run(HttpProcessor.java:1107
)
at java.lang.Thread.run(Thread.java:536)
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