Yes, it seems like we should be able to generate a better error message here.
Can you file a bug in our issue tracker, please? http://code.google.com/p/googleappengine/issues/list Thanks, Don On Thu, Mar 18, 2010 at 4:42 PM, Mouseclicker <[email protected]>wrote: > Hi, > > I am using the low level datastore API and suspect that there is a bug > in the current implementation when deleting entities. > > If I call delete() with an array of keys and one or more of the keys > does no longer exist this results in a very strange exception: > > com.google.appengine.api.datastore.DatastoreFailureException: > Unexpected error, please try again > > The behavior is also different on the development server. Here I do > not receive an exception at all. > > Getting no meaningful exception makes debugging such issues very hard > and I suspect that this behavior is a bug. Is this possible? > > Here is the full stacktrace: > Uncaught exception from servlet > com.google.appengine.api.datastore.DatastoreFailureException: > Unexpected error, please try again. > at > > com.google.appengine.api.datastore.DatastoreApiHelper.translateError(DatastoreApiHelper.java: > 46) > at > > com.google.appengine.api.datastore.DatastoreApiHelper.makeSyncCall(DatastoreApiHelper.java: > 60) > at com.google.appengine.api.datastore.DatastoreServiceImpl > $3.run(DatastoreServiceImpl.java:225) > at > > com.google.appengine.api.datastore.TransactionRunner.runInTransaction(TransactionRunner.java: > 30) > at > > com.google.appengine.api.datastore.DatastoreServiceImpl.delete(DatastoreServiceImpl.java: > 211) > at > > com.google.appengine.api.datastore.DatastoreServiceImpl.delete(DatastoreServiceImpl.java: > 197) > at > > org.yodooga.repository.RepositoryAdmin.processDeleteTask(RepositoryAdmin.java: > 114) > at org.yodooga.YoDooGAServlet.doPut(YoDooGAServlet.java:144) > at javax.servlet.http.HttpServlet.service(HttpServlet.java:716) > at javax.servlet.http.HttpServlet.service(HttpServlet.java:806) > at > org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java: > 487) > at org.mortbay.jetty.servlet.ServletHandler > $CachedChain.doFilter(ServletHandler.java:1093) > at > > com.google.apphosting.utils.servlet.ParseBlobUploadFilter.doFilter(ParseBlobUploadFilter.java: > 97) > at org.mortbay.jetty.servlet.ServletHandler > $CachedChain.doFilter(ServletHandler.java:1084) > at > > com.google.apphosting.runtime.jetty.SaveSessionFilter.doFilter(SaveSessionFilter.java: > 35) > at org.mortbay.jetty.servlet.ServletHandler > $CachedChain.doFilter(ServletHandler.java:1084) > at > > com.google.apphosting.utils.servlet.TransactionCleanupFilter.doFilter(TransactionCleanupFilter.java: > 43) > at org.mortbay.jetty.servlet.ServletHandler > $CachedChain.doFilter(ServletHandler.java:1084): > at > org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java: > 360) > at > org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java: > 216) > at > org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java: > 181) > at > org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java: > 712) > at org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java: > 405) > at > > com.google.apphosting.runtime.jetty.AppVersionHandlerMap.handle(AppVersionHandlerMap.java: > 238) > at > org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java: > 139) > at org.mortbay.jetty.Server.handle(Server.java:313) > at > org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java: > 506) > at org.mortbay.jetty.HttpConnection > $RequestHandler.headerComplete(HttpConnection.java:830) > at > > com.google.apphosting.runtime.jetty.RpcRequestParser.parseAvailable(RpcRequestParser.java: > 76) > at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:381) > at > > com.google.apphosting.runtime.jetty.JettyServletEngineAdapter.serviceRequest(JettyServletEngineAdapter.java: > 135) > at > com.google.apphosting.runtime.JavaRuntime.handleRequest(JavaRuntime.java: > 235) > at com.google.apphosting.base.RuntimePb$EvaluationRuntime > $6.handleBlockingRequest(RuntimePb.java:5485) > at com.google.apphosting.base.RuntimePb$EvaluationRuntime > $6.handleBlockingRequest(RuntimePb.java:5483) > at > > com.google.net.rpc.impl.BlockingApplicationHandler.handleRequest(BlockingApplicationHandler.java: > 24) > at com.google.net.rpc.impl.RpcUtil.runRpcInApplication(RpcUtil.java: > 363) > at com.google.net.rpc.impl.Server$2.run(Server.java:837) > at > com.google.tracing.LocalTraceSpanRunnable.run(LocalTraceSpanRunnable.java: > 56) > at > > com.google.tracing.LocalTraceSpanBuilder.internalContinueSpan(LocalTraceSpanBuilder.java: > 536) > at com.google.net.rpc.impl.Server.startRpc(Server.java:792) > at com.google.net.rpc.impl.Server.processRequest(Server.java:367) > at > > com.google.net.rpc.impl.ServerConnection.messageReceived(ServerConnection.java: > 448) > at > com.google.net.rpc.impl.RpcConnection.parseMessages(RpcConnection.java: > 319) > at > com.google.net.rpc.impl.RpcConnection.dataReceived(RpcConnection.java: > 290) > at com.google.net.async.Connection.handleReadEvent(Connection.java: > 474) > at > > com.google.net.async.EventDispatcher.processNetworkEvents(EventDispatcher.java: > 774) > at > com.google.net.async.EventDispatcher.internalLoop(EventDispatcher.java: > 205) > at com.google.net.async.EventDispatcher.loop(EventDispatcher.java: > 101) > at > com.google.net.rpc.RpcService.runUntilServerShutdown(RpcService.java: > 251) > at com.google.apphosting.runtime.JavaRuntime > $RpcRunnable.run(JavaRuntime.java:394) > at java.lang.Thread.run(Unknown Source) > > -- > You received this message because you are subscribed to the Google Groups > "Google App Engine for Java" group. > To post to this group, send email to > [email protected]. > To 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