Re: [Geoserver-users] Max legend graphic memory usage exceeded.

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Good morning,
thanks for your feedback. That’s really strange. The error occurs with all SLDs in my instance. Also the default simple polygon:

<?xml version="1.0" encoding="ISO-8859-1"?>
<StyledLayerDescriptor version="1.0.0"
    xsi:schemaLocation=http://www.opengis.net/sld StyledLayerDescriptor.xsd<http://www.opengis.net/sld%20StyledLayerDescriptor.xsd>
    xmlns=http://www.opengis.net/sld
    xmlns:ogc=http://www.opengis.net/ogc
    xmlns:xlink=http://www.w3.org/1999/xlink
    xmlns:xsi=http://www.w3.org/2001/XMLSchema-instance>
    <!-- a named layer is the basic building block of an sld document -->

  <NamedLayer>
    <Name>Default Polygon</Name>
    <UserStyle>
        <!-- they have names, titles and abstracts -->

      <Title>Grey Polygon</Title>
      <Abstract>A sample style that just prints out a grey interior with a black outline</Abstract>
      <!-- FeatureTypeStyles describe how to render different features -->
      <!-- a feature type for polygons -->

      <FeatureTypeStyle>
        <!--FeatureTypeName>Feature</FeatureTypeName-->
        <Rule>
          <Name>Rule 1</Name>
          <Title>Grey Fill and Black Outline</Title>
          <Abstract>Grey fill with a black outline 1 pixel in width</Abstract>

          <!-- like a linesymbolizer but with a fill too -->
          <PolygonSymbolizer>
            <Fill>
              <CssParameter name="fill">#AAAAAA</CssParameter>
            </Fill>
            <Stroke>
              <CssParameter name="stroke">#000000</CssParameter>
              <CssParameter name="stroke-width">1</CssParameter>
            </Stroke>
          </PolygonSymbolizer>
        </Rule>

        </FeatureTypeStyle>
    </UserStyle>
  </NamedLayer>
</StyledLayerDescriptor>

The detailled exception is:

29 027 05:27:54 WARN   [web.data] - Failed to build legend preview
org.geoserver.platform.ServiceException: Max legend graphic memory usage exceeded.
            at org.geoserver.wms.legendgraphic.Tally.addImage(Tally.java:39)
            at org.geoserver.wms.legendgraphic.ImageList.add(ImageList.java:33)
            at org.geoserver.wms.legendgraphic.BufferedImageLegendGraphicBuilder.renderRules(BufferedImageLegendGraphicBuilder.java:386)
            at org.geoserver.wms.legendgraphic.BufferedImageLegendGraphicBuilder.buildLegendGraphic(BufferedImageLegendGraphicBuilder.java:265)
            at org.geoserver.wms.web.data.StyleAdminPanel$7.onClick(StyleAdminPanel.java:414)
            at org.geoserver.web.wicket.GeoServerAjaxFormLink.onSubmit(GeoServerAjaxFormLink.java:45)
            at org.apache.wicket.ajax.markup.html.form.AjaxSubmitLink$1.onSubmit(AjaxSubmitLink.java:111)
            at org.apache.wicket.ajax.form.AjaxFormSubmitBehavior$AjaxFormSubmitter.onSubmit(AjaxFormSubmitBehavior.java:218)
            at org.apache.wicket.markup.html.form.Form.onFormSubmitted(Form.java:787)
            at org.apache.wicket.ajax.form.AjaxFormSubmitBehavior.onEvent(AjaxFormSubmitBehavior.java:174)
            at org.apache.wicket.ajax.AjaxEventBehavior.respond(AjaxEventBehavior.java:155)
            at org.apache.wicket.ajax.AbstractDefaultAjaxBehavior.onRequest(AbstractDefaultAjaxBehavior.java:601)
            at jdk.internal.reflect.GeneratedMethodAccessor325.invoke(Unknown Source)
            at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
            at java.base/java.lang.reflect.Method.invoke(Unknown Source)
            at org.apache.wicket.RequestListenerInterface.internalInvoke(RequestListenerInterface.java:258)
            at org.apache.wicket.RequestListenerInterface.invoke(RequestListenerInterface.java:241)
            at org.apache.wicket.core.request.handler.ListenerInterfaceRequestHandler.invokeListener(ListenerInterfaceRequestHandler.java:248)
            at org.apache.wicket.core.request.handler.ListenerInterfaceRequestHandler.respond(ListenerInterfaceRequestHandler.java:234)
            at org.apache.wicket.request.cycle.RequestCycle$HandlerExecutor.respond(RequestCycle.java:895)
            at org.apache.wicket.request.RequestHandlerStack.execute(RequestHandlerStack.java:64)
            at org.apache.wicket.request.cycle.RequestCycle.execute(RequestCycle.java:265)
            at org.apache.wicket.request.cycle.RequestCycle.processRequest(RequestCycle.java:222)
            at org.apache.wicket.request.cycle.RequestCycle.processRequestAndDetach(RequestCycle.java:293)
            at org.apache.wicket.protocol.http.WicketFilter.processRequestCycle(WicketFilter.java:261)
            at org.apache.wicket.protocol.http.WicketFilter.processRequest(WicketFilter.java:203)
            at org.apache.wicket.protocol.http.WicketServlet.doPost(WicketServlet.java:159)
            at javax.servlet.http.HttpServlet.service(HttpServlet.java:555)
            at javax.servlet.http.HttpServlet.service(HttpServlet.java:623)
            at org.springframework.web.servlet.mvc.ServletWrappingController.handleRequestInternal(ServletWrappingController.java:166)
            at org.springframework.web.servlet.mvc.AbstractController.handleRequest(AbstractController.java:177)
            at org.springframework.web.servlet.mvc.SimpleControllerHandlerAdapter.handle(SimpleControllerHandlerAdapter.java:51)
            at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:1072)
            at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:965)
            at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:1006)
            at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:909)
            at javax.servlet.http.HttpServlet.service(HttpServlet.java:555)
            at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:883)
            at javax.servlet.http.HttpServlet.service(HttpServlet.java:623)
            at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:209)
            at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:153)
            at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:51)
            at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:178)
            at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:153)
            at org.apache.catalina.filters.CorsFilter.handleNonCORS(CorsFilter.java:331)
            at org.apache.catalina.filters.CorsFilter.doFilter(CorsFilter.java:158)
            at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:178)
            at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:153)
            at org.geoserver.filters.ThreadLocalsCleanupFilter.doFilter(ThreadLocalsCleanupFilter.java:28)
            at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:178)
            at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:153)
            at org.geoserver.filters.SpringDelegatingFilter$Chain.doFilter(SpringDelegatingFilter.java:73)
            at org.geoserver.ows.HTTPHeadersCollector.doFilter(HTTPHeadersCollector.java:48)
            at org.geoserver.filters.SpringDelegatingFilter$Chain.doFilter(SpringDelegatingFilter.java:70)
            at org.geoserver.filters.HTTPMethodFilter.doFilter(HTTPMethodFilter.java:36)
            at org.geoserver.filters.SpringDelegatingFilter$Chain.doFilter(SpringDelegatingFilter.java:70)
            at org.geoserver.filters.LoggingFilter.doFilter(LoggingFilter.java:194)
            at org.geoserver.filters.SpringDelegatingFilter$Chain.doFilter(SpringDelegatingFilter.java:70)
            at org.geoserver.filters.SpringDelegatingFilter.doFilter(SpringDelegatingFilter.java:43)
            at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:178)
            at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:153)
            at org.geoserver.platform.AdvancedDispatchFilter.doFilter(AdvancedDispatchFilter.java:39)
            at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:178)
            at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:153)
            at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:337)
            at org.geoserver.security.filter.GeoServerCompositeFilter$NestedFilterChain.doFilter(GeoServerCompositeFilter.java:71)
            at org.springframework.security.web.access.intercept.FilterSecurityInterceptor.invoke(FilterSecurityInterceptor.java:115)
            at org.springframework.security.web.access.intercept.FilterSecurityInterceptor.doFilter(FilterSecurityInterceptor.java:81)
            at org.geoserver.security.filter.GeoServerCompositeFilter$NestedFilterChain.doFilter(GeoServerCompositeFilter.java:75)
            at org.geoserver.security.filter.GeoServerCompositeFilter.doFilter(GeoServerCompositeFilter.java:92)
            at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:346)
            at org.geoserver.security.filter.GeoServerCompositeFilter$NestedFilterChain.doFilter(GeoServerCompositeFilter.java:71)
            at org.springframework.security.web.access.ExceptionTranslationFilter.doFilter(ExceptionTranslationFilter.java:122)
            at org.springframework.security.web.access.ExceptionTranslationFilter.doFilter(ExceptionTranslationFilter.java:116)
            at org.geoserver.security.filter.GeoServerCompositeFilter$NestedFilterChain.doFilter(GeoServerCompositeFilter.java:75)
            at org.geoserver.security.filter.GeoServerCompositeFilter.doFilter(GeoServerCompositeFilter.java:92)
            at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:346)
            at org.geoserver.security.filter.GeoServerAnonymousAuthenticationFilter.doFilter(GeoServerAnonymousAuthenticationFilter.java:53)
            at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:346)
            at org.geoserver.security.filter.GeoServerCompositeFilter$NestedFilterChain.doFilter(GeoServerCompositeFilter.java:71)
            at org.springframework.security.web.authentication.AbstractAuthenticationProcessingFilter.doFilter(AbstractAuthenticationProcessingFilter.java:223)
            at org.springframework.security.web.authentication.AbstractAuthenticationProcessingFilter.doFilter(AbstractAuthenticationProcessingFilter.java:217)
            at org.geoserver.security.filter.GeoServerCompositeFilter$NestedFilterChain.doFilter(GeoServerCompositeFilter.java:75)
            at org.geoserver.security.filter.GeoServerCompositeFilter.doFilter(GeoServerCompositeFilter.java:92)
            at org.geoserver.security.filter.GeoServerUserNamePasswordAuthenticationFilter.doFilter(GeoServerUserNamePasswordAuthenticationFilter.java:122)
            at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:346)
            at org.geoserver.security.filter.GeoServerCompositeFilter$NestedFilterChain.doFilter(GeoServerCompositeFilter.java:71)
            at org.springframework.security.web.authentication.rememberme.RememberMeAuthenticationFilter.doFilter(RememberMeAuthenticationFilter.java:106)
            at org.springframework.security.web.authentication.rememberme.RememberMeAuthenticationFilter.doFilter(RememberMeAuthenticationFilter.java:97)
            at org.geoserver.security.filter.GeoServerCompositeFilter$NestedFilterChain.doFilter(GeoServerCompositeFilter.java:75)
            at org.geoserver.security.filter.GeoServerCompositeFilter.doFilter(GeoServerCompositeFilter.java:92)
            at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:346)
            at org.geoserver.security.filter.GeoServerCompositeFilter$NestedFilterChain.doFilter(GeoServerCompositeFilter.java:71)
            at org.geoserver.security.filter.GeoServerSecurityContextPersistenceFilter$1.doFilterInternal(GeoServerSecurityContextPersistenceFilter.java:72)
            at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:117)
            at org.geoserver.security.filter.GeoServerCompositeFilter$NestedFilterChain.doFilter(GeoServerCompositeFilter.java:75)
            at org.geoserver.security.filter.GeoServerCompositeFilter.doFilter(GeoServerCompositeFilter.java:92)
            at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:346)
            at org.springframework.security.web.FilterChainProxy.doFilterInternal(FilterChainProxy.java:221)
            at org.springframework.security.web.FilterChainProxy.doFilter(FilterChainProxy.java:186)
            at org.geoserver.security.GeoServerSecurityFilterChainProxy.doFilter(GeoServerSecurityFilterChainProxy.java:142)
            at org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:354)
            at org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:267)
            at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:178)
            at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:153)
            at org.geoserver.filters.XFrameOptionsFilter.doFilter(XFrameOptionsFilter.java:100)
            at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:178)
            at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:153)
            at org.geoserver.filters.GZIPFilter.doFilter(GZIPFilter.java:48)
            at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:178)
            at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:153)
            at org.geoserver.filters.SessionDebugFilter.doFilter(SessionDebugFilter.java:49)
            at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:178)
            at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:153)
            at org.geoserver.filters.FlushSafeFilter.doFilter(FlushSafeFilter.java:42)
            at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:178)
            at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:153)
            at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:201)
            at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:117)
            at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:178)
            at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:153)
            at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:168)
            at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:90)
            at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:481)
            at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:130)
            at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:93)
            at org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:670)
            at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:74)
            at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:342)
            at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:390)
            at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:63)
            at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:928)
            at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1794)
            at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:52)
            at org.apache.tomcat.util.threads.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1191)
            at org.apache.tomcat.util.threads.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:659)
            at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
            at java.base/java.lang.Thread.run(Unknown Source)
29 027 05:27:54 TRACE  [geoserver.platform] - Found Property override: 'wicket.configuration' to be unset

The Tomcat itself occupies at around 1,5 GB of the allowed 4GBs of memory. The WMS services itself produce the maps as expected.

All the best,
Michael

Von: Andrea Aime <and...@ge...>
Gesendet: Mittwoch, 26. Juni 2024 09:36
An: Jody Garnett <jod...@gm...>
Cc: Michael STEIGEMANN <ms...@wi...>; geo...@li...
Betreff: Re: [Geoserver-users] Max legend graphic memory usage exceeded.

Yes indeed, that's the area. GetLegendGraphic had no max memory limit (unlike GetMap) and could be used to bring a GeoServer to OOM
by simply increasing the sample image size. Not any longer. I'm guessing Michael has a very long and complex style there, that would generate
a very large GetLegendGraphic?

Regards,

Andrea Aime

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On Wed, Jun 26, 2024 at 8:30 AM Jody Garnett <jod...@gm...<mailto:jod...@gm...>> wrote:
I was not aware there was a limit, checking the code for that exception shows it is thrown by something called Tally.java which calculates max memory based on the max memory set aside for WMS requests.

https://github.com/geoserver/geoserver/blob/b3b3ca4985f8fba292dea910d9d3317e72b00edb/src/wms/src/main/java/org/geoserver/wms/legendgraphic/Tally.java#L26

    public Tally(WMS wms) {
        if (wms != null && wms.getMaxRequestMemory() > 0) {
            this.maxMemory = wms.getMaxRequestMemory() * 1024L; // KB to bytes
        } else {
            this.maxMemory = UNLIMITED;
        }
    }

Consider increasing the WMS  "Max rendering memory" and see if has an effected: https://docs.geoserver.org/stable/en/user/services/wms/webadmin.html

(The WMS max memory setting should be documented as "Resource consumption limits" on that page but I do not see anything).

--
Jody Garnett

On Jun 25, 2024 at 1:27:01 PM, Michael STEIGEMANN via Geoserver-users <geo...@li...<mailto:geo...@li...>> wrote:
Hello,

in my geoserver instance the generation of legend graphics does not work anymore. I use the following URL:
http://localhost:8080/geoserver/ows?service=WMS&request=GetLegendGraphic&format=image%2Fpng&height=12&width=12&layer=geodata%3Amylayer&style=&version=1.3.0&SLD_VERSION=1.1.0&LEGEND_OPTIONS=forceLabels%3Aon&SCALE=564&authkey=xxx

The errormessage is:

<ServiceExceptionReport xmlns=http://www.opengis.net/ogc xmlns:xsi=http://www.w3.org/2001/XMLSchema-instance version="1.3.0" xsi:schemaLocation=http://www.opengis.net/ogc https://nbmssp8/geoserver/schemas/wms/1.3.0/exceptions_1_3_0.xsd?authkey=56f60c87-989c-4f71-b2bb-14d5c8cf20e3<http://www.opengis.net/ogc%20https:/nbmssp8/geoserver/schemas/wms/1.3.0/exceptions_1_3_0.xsd?authkey=56f60c87-989c-4f71-b2bb-14d5c8cf20e3>>
<ServiceException code="MaxMemoryExceeded"> Max legend graphic memory usage exceeded. </ServiceException>
</ServiceExceptionReport>

The WMS map rendering works as expected. The tomcat memory settings of the tomcat are JvmMs=1024 and JvmMx=4096.

Where can I change the setting?

I am using GeoServer Release 2.24.1. on windows.

Thanks and all the best,
Michael

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_______________________________________________
Geoserver-users mailing list

Please make sure you read the following two resources before posting to this list:
- Earning your support instead of buying it, but Ian Turton: http://www.ianturton.com/talks/foss4g.html#/
- The GeoServer user list posting guidelines: http://geoserver.org/comm/userlist-guidelines.html

If you want to request a feature or an improvement, also see this: https://github.com/geoserver/geoserver/wiki/Successfully-requesting-and-integrating-new-features-and-improvements-in-GeoServer

Geo...@li...<mailto:Geo...@li...>
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