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Hello. We’ve been testing an application locally for a short while now and have encountered a problem where files in the project suddenly disappear. When creating a profile, we can add a profile picture to it. This is done via a specialization of the System.Image entity. However, after a random amount of time (can be days, can be weeks), we notice that the association is still there and all the data of this image is also still in the database (Thumbnail. name, size, associations, etc.), but the system can’t find the file anymore. We get the following error: The file '180888cddd787c829634da.jpg' could not be found. -------- com.mendix.storage.FileNotFoundInStorageException: LocalFileSystemStore:: File does not exist for key: bd630536-ab22-4667-a88b-778f7bdeb5ec at com.mendix.storage.localfilesystem.internal.LocalFileSystemStore.getFileDocumentAsFile(LocalFileSystemStore.scala:167) at com.mendix.storage.localfilesystem.internal.LocalFileSystemStore.getStoredSize(LocalFileSystemStore.scala:173) at com.mendix.storage.localfilesystem.internal.LocalFileSystemStore.getContentLength(LocalFileSystemStore.scala:177) at com.mendix.filedocumentprocessor.internal.FileDocumentProcessorImpl.getFileDocumentFileLength(FileDocumentProcessorImpl.java:110) at com.mendix.filedocumentprocessor.internal.FileDocumentProcessorImpl.getImageFileLength(FileDocumentProcessorImpl.java:125) at com.mendix.webui.requesthandling.FileDownloadHelper.getContentLength(FileDownloadHelper.scala:199) at com.mendix.webui.requesthandling.FileDownloadHelper.doDownload(FileDownloadHelper.scala:54) at com.mendix.webui.requesthandling.FileDownloadHelper.handleDownload(FileDownloadHelper.scala:39) at com.mendix.webui.requesthandling.FileRequestHandler.handleRequest(FileRequestHandler.scala:47) at com.mendix.webui.requesthandling.FileRequestHandler.processRequest(FileRequestHandler.scala:33) at com.mendix.externalinterface.connector.RequestHandler.doProcessRequest(RequestHandler.java:35) at com.mendix.external.connector.MxRuntimeConnector.lambda$processRequest$0(MxRuntimeConnector.java:74) at com.mendix.util.classloading.Runner.withContextClassLoader(Runner.java:19) at com.mendix.external.connector.MxRuntimeConnector.processRequest(MxRuntimeConnector.java:73) at com.mendix.basis.impl.MxRuntimeImplBase.processRequest(MxRuntimeImplBase.java:834) at com.mendix.m2ee.appcontainer.server.handler.RuntimeServlet.service(RuntimeServlet.java:42) at javax.servlet.http.HttpServlet.service(HttpServlet.java:790) at org.eclipse.jetty.servlet.ServletHolder.handle(ServletHolder.java:791) at org.eclipse.jetty.servlet.ServletHandler$ChainEnd.doFilter(ServletHandler.java:1626) at org.eclipse.jetty.websocket.server.WebSocketUpgradeFilter.doFilter(WebSocketUpgradeFilter.java:228) at org.eclipse.jetty.servlet.FilterHolder.doFilter(FilterHolder.java:193) at org.eclipse.jetty.servlet.ServletHandler$Chain.doFilter(ServletHandler.java:1601) at org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:548) at org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:233) at org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:1624) at org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:233) at org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1435) at org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:188) at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:501) at org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:1594) at org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:186) at org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1350) at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:141) at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:127) at org.eclipse.jetty.server.Server.handle(Server.java:516) at org.eclipse.jetty.server.HttpChannel.lambda$handle$1(HttpChannel.java:388) at org.eclipse.jetty.server.HttpChannel.dispatch(HttpChannel.java:633) at org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:380) at org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:279) at org.eclipse.jetty.io.AbstractConnection$ReadCallback.succeeded(AbstractConnection.java:311) at org.eclipse.jetty.io.FillInterest.fillable(FillInterest.java:105) at org.eclipse.jetty.io.ChannelEndPoint$1.run(ChannelEndPoint.java:104) at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.runTask(EatWhatYouKill.java:336) at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.doProduce(EatWhatYouKill.java:313) at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.tryProduce(EatWhatYouKill.java:171) at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.run(EatWhatYouKill.java:129) at org.eclipse.jetty.util.thread.ReservedThreadExecutor$ReservedThread.run(ReservedThreadExecutor.java:383) at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:882) at org.eclipse.jetty.util.thread.QueuedThreadPool$Runner.run(QueuedThreadPool.java:1036) at java.base/java.lang.Thread.run(Thread.java:834) When we then look in our file explorer, the file itself has been removed but all of its data is obviously still in the database. So we haven’t performed any sort of delete action inside of the app, otherwise we wouldn’t still have the data. Does anyone know what the cause of this issue could be? Could it perhaps be a restriction on the local file storage of Mendix that it for example removes certain files after a certain time to limit the file storage size? Couldn’t find anything in the documentations about this. Any help or insights would be appreciated!

asked 2022-01-27

2 answers