[Geoserver-users] Problem Seeding Cached Tiles: Bug?

[daveg81]

Hi,

I am having problems seeing layers in GeoServer/GeoWebCache since i have
upgraded my GeoServer from 2.8.3 to 2.10.3.

Everytime I try to seed a layer GWC starts then stops immediately with the
following crash:

/2017-05-09 14:51:42,805 INFO [seed.SeedTask] - GWC Seeder Thread-12 begins
seeding layer : opendata
2017-05-09 14:51:42,821 INFO [geoserver.wms] -
Request: getServiceInfo
2017-05-09 14:51:42,837 ERROR [geoserver.ows] -
org.geoserver.platform.ServiceException: No layers have been requested
at org.geoserver.wms.GetMap.assertMandatory(GetMap.java:728)
at org.geoserver.wms.GetMap.run(GetMap.java:185)
at org.geoserver.wms.GetMap.run(GetMap.java:125)
at
org.geoserver.wms.DefaultWebMapService.getMap(DefaultWebMapService.java:320)
at sun.reflect.GeneratedMethodAccessor253.invoke(Unknown Source)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at
org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:302)
at
org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:190)
at
org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:157)
at
org.geoserver.kml.WebMapServiceKmlInterceptor.invoke(WebMapServiceKmlInterceptor.java:34)
at
org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179)
at
org.geoserver.gwc.wms.CacheSeedingWebMapService.invoke(CacheSeedingWebMapService.java:62)
at
org.geoserver.gwc.wms.CacheSeedingWebMapService.invoke(CacheSeedingWebMapService.java:36)
at
org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179)
at
org.geoserver.gwc.wms.CachingWebMapService.invoke(CachingWebMapService.java:80)
at
org.geoserver.gwc.wms.CachingWebMapService.invoke(CachingWebMapService.java:55)
at
org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179)
at
org.geoserver.ows.util.RequestObjectLogger.invoke(RequestObjectLogger.java:55)
at
org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179)
at
org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:208)
at com.sun.proxy.$Proxy58.getMap(Unknown Source)
at sun.reflect.GeneratedMethodAccessor206.invoke(Unknown Source)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at org.geoserver.ows.Dispatcher.execute(Dispatcher.java:857)
at org.geoserver.ows.Dispatcher.handleRequestInternal(Dispatcher.java:268)
at
org.springframework.web.servlet.mvc.AbstractController.handleRequest(AbstractController.java:147)
at org.geoserver.gwc.GWC.dispatchOwsRequest(GWC.java:1272)
at
org.geoserver.gwc.layer.GeoServerTileLayer.dispatchGetMap(GeoServerTileLayer.java:661)
at
org.geoserver.gwc.layer.GeoServerTileLayer.getMetatilingReponse(GeoServerTileLayer.java:605)
at
org.geoserver.gwc.layer.GeoServerTileLayer.seedTile(GeoServerTileLayer.java:800)
at org.geowebcache.seed.SeedTask.doActionInternal(SeedTask.java:136)
at org.geowebcache.seed.GWCTask.doAction(GWCTask.java:76)
at org.geowebcache.seed.MTSeeder.call(MTSeeder.java:36)
at org.geowebcache.seed.MTSeeder.call(MTSeeder.java:25)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at java.lang.Thread.run(Thread.java:745)
2017-05-09 14:51:42,837 INFO [seed.GWCTask] - Thread group finished SEED
task after 0.032 seconds
2017-05-09 14:51:42,837 ERROR [seed.MTSeeder] - Problem communicating with
GeoServer
org.geowebcache.GeoWebCacheException: Problem communicating with GeoServer
at
org.geoserver.gwc.layer.GeoServerTileLayer.getMetatilingReponse(GeoServerTileLayer.java:611)
at
org.geoserver.gwc.layer.GeoServerTileLayer.seedTile(GeoServerTileLayer.java:800)
at org.geowebcache.seed.SeedTask.doActionInternal(SeedTask.java:136)
at org.geowebcache.seed.GWCTask.doAction(GWCTask.java:76)
at org.geowebcache.seed.MTSeeder.call(MTSeeder.java:36)
at org.geowebcache.seed.MTSeeder.call(MTSeeder.java:25)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at java.lang.Thread.run(Thread.java:745)
Caused by: java.lang.IllegalStateException: Expected: RenderedImageMap, got
null
at
org.geoserver.gwc.layer.GeoServerTileLayer.dispatchGetMap(GeoServerTileLayer.java:664)
at
org.geoserver.gwc.layer.GeoServerTileLayer.getMetatilingReponse(GeoServerTileLayer.java:605)
... 9 more/

I am at a loss as to why this version of GeoServer/GWC will not seed my
layer, as no real clue is give where the issue lies.

Could anyone suggest a solution as it present I am convinced there is a bug
in this instance.

Thanks



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