The error that comes in the log is emitted by GWC configuration process
indicating ;
*LayerGroupInfoImple--xxxxxxx_id (this is if that Layer upon which
configuration were changed belonged to that group) or
LayerInfoImple--xxxx_id (the layer itself) cannot be found, gwc maybe out
of sync blaah blaah..*

*I can confirm that Changing the Overview Policy causes the issue.*

.. which then stops GWC from loading and consequently entire Geoserver.
Now this is the *LayerGroupInfoImple--xxxxxxx_id**.xml* or
*LayerInfoImple--xxxx_id.xml* file in gwc-layers which references the
particular LayerGroup or Layer in geoserver catalog.
This for me means the Layer no-longer exists in Geoserver catalog
configuration so GWC cannot find it and hence breaks the  configuration.

Here is the full Log.

2018-08-27 16:29:45,614 WARN [support.XmlWebApplicationContext] - Exception
encountered during context initialization - cancelling refresh attempt:
org.springframework.beans.factory.BeanCreationException: Error creating
bean with name 'wcsService-1.1.0' defined in URL
[jar:file:/opt/tomcat/webapps/geoserver/WEB-INF/lib/gs-wcs1_1-2.13.1.jar!/applicationContext.xml]:
Cannot resolve reference to bean 'wcs111Service' while setting constructor
argument; nested exception is
org.springframework.beans.factory.BeanCreationException: Error creating
bean with name 'wcs111Service': FactoryBean threw exception on object
creation; nested exception is
org.springframework.beans.factory.BeanCreationException: Error creating
bean with name 'wmsServiceInterceptor_CachingWMS' defined in URL
[jar:file:/opt/tomcat/webapps/geoserver/WEB-INF/lib/gs-gwc-2.13.1.jar!/applicationContext.xml]:
Cannot resolve reference to bean 'cachingWebMapService' while setting bean
property 'advice'; nested exception is
org.springframework.beans.factory.BeanCreationException: Error creating
bean with name 'cachingWebMapService' defined in URL
[jar:file:/opt/tomcat/webapps/geoserver/WEB-INF/lib/gs-gwc-2.13.1.jar!/applicationContext.xml]:
Cannot resolve reference to bean 'gwcFacade' while setting constructor
argument; nested exception is
org.springframework.beans.factory.BeanCreationException: Error creating
bean with name 'gwcFacade' defined in URL
[jar:file:/opt/tomcat/webapps/geoserver/WEB-INF/lib/gs-gwc-2.13.1.jar!/applicationContext.xml]:
Cannot resolve reference to bean 'DiskQuotaMonitor' while setting
constructor argument; nested exception is
org.springframework.beans.factory.BeanCreationException: Error creating
bean with name 'DiskQuotaMonitor' defined in URL
[jar:file:/opt/tomcat/webapps/geoserver/WEB-INF/lib/gs-gwc-2.13.1.jar!/geowebcache-diskquota-context.xml]:
Invocation of init method failed; nested exception is
java.lang.IllegalStateException: Could not locate a layer or layer group
with id LayerGroupInfoImpl--ab1020c:1657a38f0e0:-7ffd within GeoServer
configuration, the GWC configuration seems to be out of synch
2018-08-27 16:29:45,615 INFO [seed.SeederThreadPoolExecutor] - Initiating
shut down for running and pending seed tasks...
2018-08-27 16:29:45,615 INFO [seed.SeederThreadPoolExecutor] - Seeder
thread pool executor shut down complete.
2018-08-27 16:29:45,615 INFO [storage.DefaultStorageBroker] - Destroying
StorageBroker
2018-08-27 16:29:45,632 WARN [support.DisposableBeanAdapter] - Invocation
of destroy method 'destroy' failed on bean with name 'gwcMemoryBlobStore':
java.util.concurrent.RejectedExecutionException: Task
java.util.concurrent.FutureTask@155ae53 rejected from
java.util.concurrent.ThreadPoolExecutor@39570db9[Terminated, pool size = 0,
active threads = 0, queued tasks = 0, completed tasks = 1]
2018-08-27 16:29:45,636 WARN [support.DisposableBeanAdapter] - Invocation
of destroy method failed on bean with name 'geoServerLoader':
org.springframework.beans.factory.BeanCreationNotAllowedException: Error
creating bean with name 'metaTileCache': Singleton bean creation not
allowed while singletons of this factory are in destruction (Do not request
a bean from a BeanFactory in a destroy method implementation!)
2018-08-27 16:29:45,641 ERROR [context.ContextLoader] - Context
initialization failed
org.springframework.beans.factory.BeanCreationException: Error creating
bean with name 'wcsService-1.1.0' defined in URL
[jar:file:/opt/tomcat/webapps/geoserver/WEB-INF/lib/gs-wcs1_1-2.13.1.jar!/applicationContext.xml]:
Cannot resolve reference to bean 'wcs111Service' while setting constructor
argument; nested exception is
org.springframework.beans.factory.BeanCreationException: Error creating
bean with name 'wcs111Service': FactoryBean threw exception on object
creation; nested exception is
org.springframework.beans.factory.BeanCreationException: Error creating
bean with name 'wmsServiceInterceptor_CachingWMS' defined in URL
[jar:file:/opt/tomcat/webapps/geoserver/WEB-INF/lib/gs-gwc-2.13.1.jar!/applicationContext.xml]:
Cannot resolve reference to bean 'cachingWebMapService' while setting bean
property 'advice'; nested exception is
org.springframework.beans.factory.BeanCreationException: Error creating
bean with name 'cachingWebMapService' defined in URL
[jar:file:/opt/tomcat/webapps/geoserver/WEB-INF/lib/gs-gwc-2.13.1.jar!/applicationContext.xml]:
Cannot resolve reference to bean 'gwcFacade' while setting constructor
argument; nested exception is
org.springframework.beans.factory.BeanCreationException: Error creating
bean with name 'gwcFacade' defined in URL
[jar:file:/opt/tomcat/webapps/geoserver/WEB-INF/lib/gs-gwc-2.13.1.jar!/applicationContext.xml]:
Cannot resolve reference to bean 'DiskQuotaMonitor' while setting
constructor argument; nested exception is
org.springframework.beans.factory.BeanCreationException: Error creating
bean with name 'DiskQuotaMonitor' defined in URL
[jar:file:/opt/tomcat/webapps/geoserver/WEB-INF/lib/gs-gwc-2.13.1.jar!/geowebcache-diskquota-context.xml]:
Invocation of init method failed; nested exception is
java.lang.IllegalStateException: Could not locate a layer or layer group
with id LayerGroupInfoImpl--ab1020c:1657a38f0e0:-7ffd within GeoServer
configuration, the GWC configuration seems to be out of synch
        at
org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveReference(BeanDefinitionValueResolver.java:359)
        at
org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveValueIfNecessary(BeanDefinitionValueResolver.java:108)
        at
org.springframework.beans.factory.support.ConstructorResolver.resolveConstructorArguments(ConstructorResolver.java:634)
        at
org.springframework.beans.factory.support.ConstructorResolver.autowireConstructor(ConstructorResolver.java:145)
        at
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.autowireConstructor(AbstractAutowireCapableBeanFactory.java:1193)
        at
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1095)
        at
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:513)
        at
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:483)
        at
org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:306)
        at
org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:230)
        at
org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:302)
        at
org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:197)
        at
org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:761)
        at
org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:866)
        at
org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:542)
        at
org.springframework.web.context.ContextLoader.configureAndRefreshWebApplicationContext(ContextLoader.java:443)
        at
org.springframework.web.context.ContextLoader.initWebApplicationContext(ContextLoader.java:325)
        at
org.springframework.web.context.ContextLoaderListener.contextInitialized(ContextLoaderListener.java:107)
        at
org.geoserver.platform.GeoServerContextLoaderListener.contextInitialized(GeoServerContextLoaderListener.java:23)
        at
org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:4792)
        at
org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5256)
        at
org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
        at
org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:754)
        at
org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:730)
        at
org.apache.catalina.core.StandardHost.addChild(StandardHost.java:734)
        at
org.apache.catalina.startup.HostConfig.deployDirectory(HostConfig.java:1140)
        at
org.apache.catalina.startup.HostConfig$DeployDirectory.run(HostConfig.java:1875)
        at
java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
        at java.util.concurrent.FutureTask.run(FutureTask.java:266)
        at
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
        at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
        at java.lang.Thread.run(Thread.java:748)
Caused by: org.springframework.beans.factory.BeanCreationException: Error
creating bean with name 'wcs111Service': FactoryBean threw exception on
object creation; nested exception is
org.springframework.beans.factory.BeanCreationException: Error creating
bean with name 'wmsServiceInterceptor_CachingWMS' defined in URL
[jar:file:/opt/tomcat/webapps/geoserver/WEB-INF/lib/gs-gwc-2.13.1.jar!/applicationContext.xml]:
Cannot resolve reference to bean 'cachingWebMapService' while setting bean
property 'advice'; nested exception is
org.springframework.beans.factory.BeanCreationException: Error creating
bean with name 'cachingWebMapService' defined in URL
[jar:file:/opt/tomcat/webapps/geoserver/WEB-INF/lib/gs-gwc-2.13.1.jar!/applicationContext.xml]:
Cannot resolve reference to bean 'gwcFacade' while setting constructor
argument; nested exception is
org.springframework.beans.factory.BeanCreationException: Error creating
bean with name 'gwcFacade' defined in URL
[jar:file:/opt/tomcat/webapps/geoserver/WEB-INF/lib/gs-gwc-2.13.1.jar!/applicationContext.xml]:
Cannot resolve reference to bean 'DiskQuotaMonitor' while setting
constructor argument; nested exception is
org.springframework.beans.factory.BeanCreationException: Error creating
bean with name 'DiskQuotaMonitor' defined in URL
[jar:file:/opt/tomcat/webapps/geoserver/WEB-INF/lib/gs-gwc-2.13.1.jar!/geowebcache-diskquota-context.xml]:
Invocation of init method failed; nested exception is
java.lang.IllegalStateException: Could not locate a layer or layer group
with id LayerGroupInfoImpl--ab1020c:1657a38f0e0:-7ffd within GeoServer
configuration, the GWC configuration seems to be out of synch
        at
org.springframework.beans.factory.support.FactoryBeanRegistrySupport.doGetObjectFromFactoryBean(FactoryBeanRegistrySupport.java:175)
        at
org.springframework.beans.factory.support.FactoryBeanRegistrySupport.getObjectFromFactoryBean(FactoryBeanRegistrySupport.java:103)
        at
org.springframework.beans.factory.support.AbstractBeanFactory.getObjectForBeanInstance(AbstractBeanFactory.java:1634)
        at
org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:254)
        at
org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:197)
        at
org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveReference(BeanDefinitionValueResolver.java:351)
        ... 31 more
Caused by: org.springframework.beans.factory.BeanCreationException: Error
creating bean with name 'wmsServiceInterceptor_CachingWMS' defined in URL
[jar:file:/opt/tomcat/webapps/geoserver/WEB-INF/lib/gs-gwc-2.13.1.jar!/applicationContext.xml]:
Cannot resolve reference to bean 'cachingWebMapService' while setting bean
property 'advice'; nested exception is
org.springframework.beans.factory.BeanCreationException: Error creating
bean with name 'cachingWebMapService' defined in URL
[jar:file:/opt/tomcat/webapps/geoserver/WEB-INF/lib/gs-gwc-2.13.1.jar!/applicationContext.xml]:
Cannot resolve reference to bean 'gwcFacade' while setting constructor
argument; nested exception is
org.springframework.beans.factory.BeanCreationException: Error creating
bean with name 'gwcFacade' defined in URL
[jar:file:/opt/tomcat/webapps/geoserver/WEB-INF/lib/gs-gwc-2.13.1.jar!/applicationContext.xml]:
Cannot resolve reference to bean 'DiskQuotaMonitor' while setting
constructor argument; nested exception is
org.springframework.beans.factory.BeanCreationException: Error creating
bean with name 'DiskQuotaMonitor' defined in URL
[jar:file:/opt/tomcat/webapps/geoserver/WEB-INF/lib/gs-gwc-2.13.1.jar!/geowebcache-diskquota-context.xml]:
Invocation of init method failed; nested exception is
java.lang.IllegalStateException: Could not locate a layer or layer group
with id LayerGroupInfoImpl--ab1020c:1657a38f0e0:-7ffd within GeoServer
configuration, the GWC configuration seems to be out of synch
        at
org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveReference(BeanDefinitionValueResolver.java:359)
        at
org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveValueIfNecessary(BeanDefinitionValueResolver.java:108)
        at
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyPropertyValues(AbstractAutowireCapableBeanFactory.java:1531)
        at
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1276)
        at
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:553)
        at
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:483)
        at
org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:306)
        at
org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:230)
        at
org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:302)
        at
org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:197)
        at
org.springframework.aop.framework.ProxyFactoryBean.addGlobalAdvisor(ProxyFactoryBean.java:519)
        at
org.springframework.aop.framework.ProxyFactoryBean.initializeAdvisorChain(ProxyFactoryBean.java:450)
        at
org.springframework.aop.framework.ProxyFactoryBean.getObject(ProxyFactoryBean.java:244)
        at
org.springframework.beans.factory.support.FactoryBeanRegistrySupport.doGetObjectFromFactoryBean(FactoryBeanRegistrySupport.java:168)
        ... 36 more
Caused by: org.springframework.beans.factory.BeanCreationException: Error
creating bean with name 'cachingWebMapService' defined in URL
[jar:file:/opt/tomcat/webapps/geoserver/WEB-INF/lib/gs-gwc-2.13.1.jar!/applicationContext.xml]:
Cannot resolve reference to bean 'gwcFacade' while setting constructor
argument; nested exception is
org.springframework.beans.factory.BeanCreationException: Error creating
bean with name 'gwcFacade' defined in URL
[jar:file:/opt/tomcat/webapps/geoserver/WEB-INF/lib/gs-gwc-2.13.1.jar!/applicationContext.xml]:
Cannot resolve reference to bean 'DiskQuotaMonitor' while setting
constructor argument; nested exception is
org.springframework.beans.factory.BeanCreationException: Error creating
bean with name 'DiskQuotaMonitor' defined in URL
[jar:file:/opt/tomcat/webapps/geoserver/WEB-INF/lib/gs-gwc-2.13.1.jar!/geowebcache-diskquota-context.xml]:
Invocation of init method failed; nested exception is
java.lang.IllegalStateException: Could not locate a layer or layer group
with id LayerGroupInfoImpl--ab1020c:1657a38f0e0:-7ffd within GeoServer
configuration, the GWC configuration seems to be out of synch
        at
org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveReference(BeanDefinitionValueResolver.java:359)
        at
org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveValueIfNecessary(BeanDefinitionValueResolver.java:108)
        at
org.springframework.beans.factory.support.ConstructorResolver.resolveConstructorArguments(ConstructorResolver.java:648)
        at
org.springframework.beans.factory.support.ConstructorResolver.autowireConstructor(ConstructorResolver.java:145)
        at
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.autowireConstructor(AbstractAutowireCapableBeanFactory.java:1193)
        at
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1095)
        at
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:513)
        at
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:483)
        at
org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:306)
        at
org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:230)
        at
org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:302)
        at
org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:197)
        at
org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveReference(BeanDefinitionValueResolver.java:351)
        ... 49 more
Caused by: org.springframework.beans.factory.BeanCreationException: Error
creating bean with name 'gwcFacade' defined in URL
[jar:file:/opt/tomcat/webapps/geoserver/WEB-INF/lib/gs-gwc-2.13.1.jar!/applicationContext.xml]:
Cannot resolve reference to bean 'DiskQuotaMonitor' while setting
constructor argument; nested exception is
org.springframework.beans.factory.BeanCreationException: Error creating
bean with name 'DiskQuotaMonitor' defined in URL
[jar:file:/opt/tomcat/webapps/geoserver/WEB-INF/lib/gs-gwc-2.13.1.jar!/geowebcache-diskquota-context.xml]:
Invocation of init method failed; nested exception is
java.lang.IllegalStateException: Could not locate a layer or layer group
with id LayerGroupInfoImpl--ab1020c:1657a38f0e0:-7ffd within GeoServer
configuration, the GWC configuration seems to be out of synch
        at
org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveReference(BeanDefinitionValueResolver.java:359)
        at
org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveValueIfNecessary(BeanDefinitionValueResolver.java:108)
        at
org.springframework.beans.factory.support.ConstructorResolver.resolveConstructorArguments(ConstructorResolver.java:648)
        at
org.springframework.beans.factory.support.ConstructorResolver.autowireConstructor(ConstructorResolver.java:145)
        at
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.autowireConstructor(AbstractAutowireCapableBeanFactory.java:1193)
        at
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1095)
        at
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:513)
        at
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:483)
        at
org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:306)
        at
org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:230)
        at
org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:302)
        at
org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:197)
        at
org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveReference(BeanDefinitionValueResolver.java:351)
        ... 61 more
Caused by: org.springframework.beans.factory.BeanCreationException: Error
creating bean with name 'DiskQuotaMonitor' defined in URL
[jar:file:/opt/tomcat/webapps/geoserver/WEB-INF/lib/gs-gwc-2.13.1.jar!/geowebcache-diskquota-context.xml]:
Invocation of init method failed; nested exception is
java.lang.IllegalStateException: Could not locate a layer or layer group
with id LayerGroupInfoImpl--ab1020c:1657a38f0e0:-7ffd within GeoServer
configuration, the GWC configuration seems to be out of synch
        at
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1628)
        at
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:555)
        at
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:483)
        at
org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:306)
        at
org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:230)
        at
org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:302)
        at
org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:197)
        at
org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveReference(BeanDefinitionValueResolver.java:351)
        ... 73 more
Caused by: java.lang.IllegalStateException: Could not locate a layer or
layer group with id LayerGroupInfoImpl--ab1020c:1657a38f0e0:-7ffd within
GeoServer configuration, the GWC configuration seems to be out of synch
        at
org.geoserver.gwc.layer.GeoServerTileLayer.getPublishedInfo(GeoServerTileLayer.java:334)
        at
org.geoserver.gwc.layer.GeoServerTileLayer.getLayerInfo(GeoServerTileLayer.java:313)
        at
org.geoserver.gwc.layer.GeoServerTileLayer.getLatLonBbox(GeoServerTileLayer.java:277)
        at
org.geoserver.gwc.layer.GeoServerTileLayer.checkGridSubsets(GeoServerTileLayer.java:803)
        at
org.geoserver.gwc.layer.GeoServerTileLayer.getGridSubsets(GeoServerTileLayer.java:791)
        at
org.geowebcache.diskquota.LayerCacheInfoBuilder.findOnDiskTileSets(LayerCacheInfoBuilder.java:148)
        at
org.geowebcache.diskquota.LayerCacheInfoBuilder.buildCacheInfo(LayerCacheInfoBuilder.java:110)
        at
org.geowebcache.diskquota.DiskQuotaMonitor.launchCacheInfoGatheringThreads(DiskQuotaMonitor.java:412)
        at
org.geowebcache.diskquota.DiskQuotaMonitor.startUpInternal(DiskQuotaMonitor.java:272)
        at
org.geowebcache.diskquota.DiskQuotaMonitor.startUp(DiskQuotaMonitor.java:231)
        at
org.geowebcache.diskquota.DiskQuotaMonitor.afterPropertiesSet(DiskQuotaMonitor.java:188)
        at
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1687)
        at
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1624)
        ... 80 more

And this has happened every time I have changed something in the *Coverage
Paramaters* of a layer e.g OutputTransparency, Overview Policy.

So I tried to change the Layer Configuration from a different section - S*tyle
- *of a Layer that belong to a group. Then I reloaded the geoserver
Configuration via the Admin UI and even restarted Geoserver and this time
the layer is present and even layer group and GWC is not out of sync.
Although, according to GWC preview, it's still using the old style as the
default style opposed to Geoserver preview which is referencing the new
style.

Kind regards,
Steve Omondi


On Mon, Aug 27, 2018 at 4:00 PM Andrea Aime <andrea.a...@geo-solutions.it>
wrote:

> Hi Steve,
> I've just checked with a 2.13.1 that I have locally, a few plugins but
> nothing dealing
> with the catalog (e.g. no JMS clustering and no JDBCConfig), updated some
> publishing
> params in a mosaic, saved, checked the disk, the config was still there,
> reloaded, layer was
> still there, restarted, mosaic layer was also still there.
> The layer was created a few hours ago with the same 2.13.1.
>
> So different experience... do you see any significant error message in the
> logs?
>
> Cheers
> Andrea
>
> On Mon, Aug 27, 2018 at 10:26 AM Steve Omondi <steve.omo...@ramani.co.ke>
> wrote:
>
>> Hi guys,
>> Has anyone using *Geoserver 2.13.1* experiencing this?
>>
>> When I change a configuration of a Layer for example I change the
>> Coverage Parameters (Overview Policy, Output Transparency, Multithreading
>> etc), the layer is depersisted from the calalog xml configuration and only
>> available in-memory such that when I reload  configuration or restart
>> Geoserver. The layer is no longer in the catalog. And in a case where it
>> belongs to a layer group, then the whole geoserver won't start because GWC
>> is out of sync and all.
>>
>> Anyone seen this?
>>
>> Kind regards,
>> Steve Omondi
>>
>> ------------------------------------------------------------------------------
>> Check out the vibrant tech community on one of the world's most
>> engaging tech sites, Slashdot.org! http://sdm.link/slashdot
>> _______________________________________________
>> 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
>>
>>
>> Geoserver-users@lists.sourceforge.net
>> https://lists.sourceforge.net/lists/listinfo/geoserver-users
>>
>
>
> --
>
> Regards, Andrea Aime == GeoServer Professional Services from the experts!
> Visit http://goo.gl/it488V for more information. == Ing. Andrea Aime
> @geowolf Technical Lead GeoSolutions S.A.S. Via di Montramito 3/A 55054
> Massarosa (LU) phone: +39 0584 962313 fax: +39 0584 1660272 mob: +39 339
> 8844549 http://www.geo-solutions.it http://twitter.com/geosolutions_it
> ------------------------------------------------------- *Con riferimento
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Please make sure you read the following two resources before posting to this 
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- Earning your support instead of buying it, but Ian Turton: 
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- 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


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