Creating ImageMosaic with zip upload through REST API doesn't work

[vuvkar]

I encountered an issue while creating an ImageMosaic store in GeoServer Cloud using the REST API.

Steps to Reproduce:

1. Perform a REST call to create an ImageMosaic store by uploading a ZIP file with indexer.properties

MosaicCRS=EPSG\:4326
Name=my-image-mosaic
PropertyCollectors=CRSExtractorSPI(crs),ResolutionExtractorSPI(resolution)
Schema=*the_geom:Polygon,location:String,crs:String,resolution:String
CanBeEmpty=true
AbsolutePath=true

2. Add granules from a specific folder to the store.
   Check the logs – the granules appear to be added successfully.
3. Attempt to create a layer, but the operation fails because the CoverageReader is not being created.

Expected Behavior:

After adding granules, the user should be able to create a layer from ImageMosaic store.

Actual Behavior:

Even though the granules are visible in the logs as being added, layer creation from UI or with REST API call fails with following log.
The log is from WebUI pod, because it was done through UI.

Logs:

2025-03-06 07:47:54.798 ERROR 1 --- [nio-8080-exec-4] org.geoserver.web                        : Error retrieving layers for the specified store

java.lang.RuntimeException: Could not list layers for this store, an error occurred retrieving them: Failed to create reader from file:data/my-workspace/my-image-mosaic-store and hints Hints:
  REPOSITORY = org.geoserver.catalog.CatalogRepository@7193f581
System defaults:
  LENIENT_DATUM_SHIFT              = true
  STYLE_FACTORY                    = org.geotools.styling.StyleFactoryImpl@5d3a238
  FILTER_FACTORY                   = FilterFactoryImpl
  COMPARISON_TOLERANCE             = 1.0E-8
  GRID_COVERAGE_FACTORY            = GridCoverageFactory
    TILE_ENCODING                  = null
  EXECUTOR_SERVICE                 = java.util.concurrent.ThreadPoolExecutor@55bafbc1[Running, pool size = 0, active threads = 0, queued tasks = 0, completed tasks = 0]
  FORCE_LONGITUDE_FIRST_AXIS_ORDER = true
  FEATURE_FACTORY                  = org.geotools.feature.LenientFeatureFactoryImpl@4ef0bc5b
  FORCE_AXIS_ORDER_HONORING        = http

	at org.geoserver.web.data.layer.NewLayerPageProvider.getItemsInternal(NewLayerPageProvider.java:173)
	at org.geoserver.web.data.layer.NewLayerPageProvider.getItems(NewLayerPageProvider.java:59)
	at org.geoserver.web.data.layer.NewLayerPage$8.onUpdate(NewLayerPage.java:278)
	at org.apache.wicket.ajax.form.AjaxFormComponentUpdatingBehavior.onEvent(AjaxFormComponentUpdatingBehavior.java:156)
	at org.apache.wicket.ajax.AjaxEventBehavior.respond(AjaxEventBehavior.java:155)
	at org.apache.wicket.ajax.AbstractDefaultAjaxBehavior.onRequest(AbstractDefaultAjaxBehavior.java:601)
	at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(Unknown Source)
	at java.base/java.lang.reflect.Method.invoke(Unknown Source)
	at org.apache.wicket.RequestListenerInterface.internalInvoke(RequestListenerInterface.java:258)
	at org.apache.wicket.RequestListenerInterface.invoke(RequestListenerInterface.java:241)
	at org.apache.wicket.core.request.handler.ListenerInterfaceRequestHandler.invokeListener(ListenerInterfaceRequestHandler.java:248)
	at org.apache.wicket.core.request.handler.ListenerInterfaceRequestHandler.respond(ListenerInterfaceRequestHandler.java:234)
	at org.apache.wicket.request.cycle.RequestCycle$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.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.geoserver.cloud.logging.mdc.servlet.MDCAuthenticationFilter.doFilter(MDCAuthenticationFilter.java:45)
	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$VirtualFilterChain.doFilter(FilterChainProxy.java:352)
	at org.geoserver.security.filter.GeoServerCompositeFilter$NestedFilterChain.doFilter(GeoServerCompositeFilter.java:68)
	at org.springframework.security.web.access.intercept.AuthorizationFilter.doFilter(AuthorizationFilter.java:100)
	at org.geoserver.security.filter.GeoServerCompositeFilter$NestedFilterChain.doFilter(GeoServerCompositeFilter.java:72)
	at org.geoserver.security.filter.GeoServerCompositeFilter.doFilter(GeoServerCompositeFilter.java:89)
	at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:361)
	at org.geoserver.security.filter.GeoServerCompositeFilter$NestedFilterChain.doFilter(GeoServerCompositeFilter.java:68)
	at org.springframework.security.web.access.ExceptionTranslationFilter.doFilter(ExceptionTranslationFilter.java:126)
	at org.springframework.security.web.access.ExceptionTranslationFilter.doFilter(ExceptionTranslationFilter.java:120)
	at org.geoserver.security.filter.GeoServerCompositeFilter$NestedFilterChain.doFilter(GeoServerCompositeFilter.java:72)
	at org.geoserver.security.filter.GeoServerCompositeFilter.doFilter(GeoServerCompositeFilter.java:89)
	at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:361)
	at org.geoserver.security.filter.GeoServerAnonymousAuthenticationFilter.doFilter(GeoServerAnonymousAuthenticationFilter.java:52)
	at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:361)
	at org.geoserver.cloud.security.gateway.sharedauth.GatewaySharedAuthenticationFilter$ServerFilter.doFilter(GatewaySharedAuthenticationFilter.java:185)
	at org.geoserver.cloud.security.gateway.sharedauth.GatewaySharedAuthenticationFilter.doFilter(GatewaySharedAuthenticationFilter.java:100)
	at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:361)
	at org.geoserver.security.filter.GeoServerCompositeFilter$NestedFilterChain.doFilter(GeoServerCompositeFilter.java:68)
	at org.springframework.security.web.authentication.www.BasicAuthenticationFilter.doFilterInternal(BasicAuthenticationFilter.java:168)
	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:117)
	at org.geoserver.security.filter.GeoServerCompositeFilter$NestedFilterChain.doFilter(GeoServerCompositeFilter.java:72)
	at org.geoserver.security.filter.GeoServerCompositeFilter.doFilter(GeoServerCompositeFilter.java:89)
	at org.geoserver.security.filter.GeoServerBasicAuthenticationFilter.doFilter(GeoServerBasicAuthenticationFilter.java:80)
	at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:361)
	at org.geoserver.security.filter.GeoServerCompositeFilter$NestedFilterChain.doFilter(GeoServerCompositeFilter.java:68)
	at org.geoserver.security.filter.GeoServerSecurityContextPersistenceFilter$1.doFilterInternal(GeoServerSecurityContextPersistenceFilter.java:66)
	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:117)
	at org.geoserver.security.filter.GeoServerCompositeFilter$NestedFilterChain.doFilter(GeoServerCompositeFilter.java:72)
	at org.geoserver.security.filter.GeoServerCompositeFilter.doFilter(GeoServerCompositeFilter.java:89)
	at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:361)
	at org.springframework.security.web.FilterChainProxy.doFilterInternal(FilterChainProxy.java:225)
	at org.springframework.security.web.FilterChainProxy.doFilter(FilterChainProxy.java:190)
	at org.geoserver.security.GeoServerSecurityFilterChainProxy.doFilter(GeoServerSecurityFilterChainProxy.java:139)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:178)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:153)
	at org.geoserver.cloud.logging.mdc.servlet.SpringEnvironmentMdcFilter.doFilterInternal(SpringEnvironmentMdcFilter.java:33)
	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:117)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:178)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:153)
	at org.geoserver.cloud.logging.mdc.servlet.HttpRequestMdcFilter.doFilterInternal(HttpRequestMdcFilter.java:42)
	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:117)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:178)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:153)
	at org.geoserver.cloud.gwc.config.core.GeoWebCacheCoreConfiguration$SetRequestPathInfoFilter.doFilter(GeoWebCacheCoreConfiguration.java:264)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:178)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:153)
	at org.springframework.security.oauth2.client.filter.OAuth2ClientContextFilter.doFilter(OAuth2ClientContextFilter.java:64)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:178)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:153)
	at org.geoserver.filters.HTTPMethodFilter.doFilter(HTTPMethodFilter.java:36)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:178)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:153)
	at org.geoserver.filters.LoggingFilter.doFilter(LoggingFilter.java:181)
	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.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.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:67)
	at org.geoserver.filters.LoggingFilter.doFilter(LoggingFilter.java:181)
	at org.geoserver.filters.SpringDelegatingFilter$Chain.doFilter(SpringDelegatingFilter.java:67)
	at org.geoserver.filters.SpringDelegatingFilter.doFilter(SpringDelegatingFilter.java:41)
	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.RequestContextFilter.doFilterInternal(RequestContextFilter.java:100)
	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.springframework.web.filter.FormContentFilter.doFilterInternal(FormContentFilter.java:93)
	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.geoserver.cloud.logging.accesslog.AccessLogServletFilter.doFilterInternal(AccessLogServletFilter.java:33)
	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.springframework.web.servlet.v3_1.OpenTelemetryHandlerMappingFilter.doFilter(OpenTelemetryHandlerMappingFilter.java:83)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:178)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:153)
	at org.springframework.boot.actuate.metrics.web.servlet.WebMvcMetricsFilter.doFilterInternal(WebMvcMetricsFilter.java:96)
	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.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.geoserver.cloud.logging.mdc.servlet.MDCCleaningFilter.doFilterInternal(MDCCleaningFilter.java:24)
	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.springframework.web.filter.ForwardedHeaderFilter.doFilterInternal(ForwardedHeaderFilter.java:156)
	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.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)
Caused by: java.io.IOException: Failed to create reader from file:data/my-workspace/my-image-mosaic-store and hints Hints:
  REPOSITORY = org.geoserver.catalog.CatalogRepository@7193f581
System defaults:
  LENIENT_DATUM_SHIFT              = true
  STYLE_FACTORY                    = org.geotools.styling.StyleFactoryImpl@5d3a238
  FILTER_FACTORY                   = FilterFactoryImpl
  COMPARISON_TOLERANCE             = 1.0E-8
  GRID_COVERAGE_FACTORY            = GridCoverageFactory
    TILE_ENCODING                  = null
  EXECUTOR_SERVICE                 = java.util.concurrent.ThreadPoolExecutor@55bafbc1[Running, pool size = 0, active threads = 0, queued tasks = 0, completed tasks = 0]
  FORCE_LONGITUDE_FIRST_AXIS_ORDER = true
  FEATURE_FACTORY                  = org.geotools.feature.LenientFeatureFactoryImpl@4ef0bc5b
  FORCE_AXIS_ORDER_HONORING        = http

	at org.geoserver.catalog.ResourcePool.getGridCoverageReader(ResourcePool.java:1623)
	at org.geoserver.catalog.ResourcePool.getGridCoverageReader(ResourcePool.java:1565)
	at org.geoserver.catalog.impl.CoverageStoreInfoImpl.getGridCoverageReader(CoverageStoreInfoImpl.java:56)
	at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(Unknown Source)
	at java.base/java.lang.reflect.Method.invoke(Unknown Source)
	at org.geoserver.catalog.impl.ModificationProxy.invoke(ModificationProxy.java:152)
	at jdk.proxy3/jdk.proxy3.$Proxy258.getGridCoverageReader(Unknown Source)
	at org.geoserver.web.data.layer.NewLayerPageProvider.getItemsInternal(NewLayerPageProvider.java:93)
	... 148 common frames omitted

Environment:

GeoServer Cloud version: 2.26.2.0
Storage Backend: PGConfig

Additional Notes:

Let me know if more details or tests are needed to help diagnose the issue. I would like to contribute to fix the issue if a bit of guidance is provided.

[groldan]

Hi, great to hear you´re willing to contribute a fix.

Since you´re using pgconfig, I´m pretty sure the problem is file:data/my-workspace/my-image-mosaic-store is a relative path to the "data directory", which basically doesn't exist in pgconfig (it only uses a temporary directory to store a short lived copy of files from the ResourceStore, since the GeoServer Resource interface has file() and dir() methods that return java.io.File, so pgconfig has to download resources from the db to an actual file for that purpose, but that's on demand.

Additionally, you should never, even when using a data directory instead of pgconfig, store your data in the data directory. That's only a convenience in GeoServer (from a long time ago) to distribute sample data directories with some data on them.

Finally, for GeoServer Cloud, since you're going to serve files, you need to make sure they're in a shared folder (e.g. managed or bind volume in docker compose, PVC in Kubernetes), so that all pods can see them.

Hope that helps

[vuvkar]

Thank you for the answer.

Sorry for not mentioning this earlier—the ZIP file does not contain any GeoTIFF or raster files. It only includes ImageMosaic store configuration files such as:

• indexer.properties
• datastore.properties
• Other properties related to additional dimensions.

I don't want to keep this information in my shared PVC because it is environment-specific.

My process is as follows:

1. Create an empty ImageMosaic store from the given configs.
2. Harvest granules from the shared folder.
3. Configure the layer.

Let me know if you need further clarification.

[groldan]

I see, sorry I misinterpreted.
I have created lots of imagemosaics in the past this way (mostly pointing to COGs on S3).
I'll give it a shot asap

[groldan]

BTW, since I'm incredibly short of spare time to do community work, what would really help is if you can provide a complete set of instructions to reproduce:

• version
• request
• data

Hopefully reproducible using the development docker compose (cd compose && ./pgconfig up -d)

[vuvkar]

Reproduction Steps

1. Create a Shared Volume Across All Docker gs-cloud Containers

Modify compose.yml to attach a volume named shared_volume, mimicking the situation with shared drives. (See in the attached archive.)

2. Run the Docker Stack Container

./pgconfig up -d

3. Copy a GeoTIFF File to the Shared Folder

docker cp rat.tiff gscloud_dev_pgconfig-rest-1:/opt/data/

4. Create a Workspace via UI

• Open the GeoServer UI.
• Create a new workspace named test-ws.

5. Create an ImageMosaic Store with the Given Config Archive

The archive consists of indexer.properties, as described in the thread.

curl -u admin:geoserver -XPUT -H "Content-type:application/zip" \
     --data-binary @"./mosaic-test-config.zip" \
     "http://localhost:9090/geoserver/cloud/rest/workspaces/test-ws/coveragestores/test-store/file.imagemosaic?configure=none"

6. Try to Harvest the Copied GeoTIFF File in the Shared Folder

curl -u admin:geoserver -XPOST -H "Content-type: text/plain" \
     -d "file:///opt/data/" \
     "http://localhost:9090/geoserver/cloud/rest/workspaces/test-ws/coveragestores/test-store/external.imagemosaic"

Outcome

You will receive the error mentioned in the thread.

bug-repro-files.zip

[groldan]

Thanks for the clear instructions. I'll check it out as soon as possible, though I probably won't have time until late next week.

[buehner]

I also stumbled upon this and it seems to me that the ImageMosaic store is generally not working (the old classic way) as I tried with different files in different scenarios. I was able to create an ImageMosaic store via REST (by just posting the output of another geoserver rest endpoint in the context of a migration), but trying to add a coverage based on that store (also via REST) then fails with similar errors like above.

So I tried to manually create the ImageMosaic store in my GS Cloud Setup, which always fails for me (even though the store creation is possible via REST).

Here are my steps to reproduce this:

1. Download this GeoTIFF: https://download1.bayernwolke.de/a/dop40/data/32668_5425.tif
2. Make it available in a scenario of your choice (I tried pgconfig latest local dev and a datadir based deploy setup)
3. In the Web-UI: Create a ImageMosaic datastore based on the directory of the downloaded GeoTIFF

For me, the above leads to the following output. I also tried other GeoTIFFs. Doing the same in vanilla GeoServer is no problem.

Could not list layers for this store, an error occurred retrieving them: Failed to create reader from file:///home/my_user/workspace/my_geodata and hints Hints:
  REPOSITORY = org.geoserver.catalog.CatalogRepository@42aa16df
System defaults:
  EXECUTOR_SERVICE                 = java.util.concurrent.ThreadPoolExecutor@7d50f2a8[Running, pool size = 0, active threads = 0, queued tasks = 0, completed tasks = 0]
  FORCE_LONGITUDE_FIRST_AXIS_ORDER = true                                                                                                                               
  LENIENT_DATUM_SHIFT              = true                                                                                                                               
  FILTER_FACTORY                   = FilterFactoryImpl                                                                                                                  
  FORCE_AXIS_ORDER_HONORING        = http                                                                                                                               
  COMPARISON_TOLERANCE             = 1.0E-8                                                                                                                             
  STYLE_FACTORY                    = org.geotools.styling.StyleFactoryImpl@1e495414                                                                                     
  GRID_COVERAGE_FACTORY            = GridCoverageFactory                                                                                                                
  FEATURE_FACTORY                  = org.geotools.feature.LenientFeatureFactoryImpl@2c7c0e36                                                                            
  HTTP_CLIENT_FACTORY              = class org.geoserver.cloud.autoconfigure.geotools.SpringEnvironmentAwareGeoToolsHttpClientFactory 

Side note: It is easily possible to create a plain "GeoTIFF" datastore with the same file.

[groldan]

@vuvkar @buehner please check this PR:

• Consolidate ImageMosaic acceptance tests #685

[vuvkar]

@groldan Thanks for continuing the work on this! I'm actively looking forward to full PGBackend support — it's one of the most exciting features of GeoServer Cloud and a key reason I’ve been considering a migration from standalone GeoServer.

If there's an opportunity for me to contribute to the fix and you’re open to guiding me through it, please feel free to ping me.