There is a maintenance downtime scheduled for this Monday (M/S apps) which is related to this. I hope they will fix this then.
On Thursday, March 15, 2012 6:56:24 PM UTC+1, toonetown wrote: > > We are seeing this issue as well - lots of deadline exceeded errors. See > the discussion at > https://groups.google.com/d/topic/google-appengine/nNoWv1uVqwo/discussionfor > a list of others that are having the same problem, and star the issue > at code.google.com/p/googleappengine/issues/detail?id=7133 to get > notifications from google (if they ever do anything about it...they don't > seem too eager to fix the issue.) > > -Nathan > > On Thursday, August 11, 2011 2:28:46 PM UTC-6, Miguel Angel De la Torre > MartÃnez wrote: >> >> Hello I been experiencing a load of problems executing queries in a task >> queue running on a backend. >> >> The log goes like this: >> >> Uncaught exception from servlet >> com.google.apphosting.api.ApiProxy$ApiDeadlineExceededException: The API >> call datastore_v3.RunQuery() took too long to respond and was cancelled. >> at >> com.google.apphosting.runtime.ApiProxyImpl$3.createDeadlineException(ApiProxyImpl.java:277) >> at >> com.google.appengine.tools.development.TimedFuture.get(TimedFuture.java:44) >> at >> com.google.common.util.concurrent.ForwardingFuture.get(ForwardingFuture.java:64) >> at >> com.google.appengine.api.utils.FutureWrapper.get(FutureWrapper.java:67) >> at >> com.google.appengine.api.utils.FutureWrapper.get(FutureWrapper.java:67) >> at >> com.google.appengine.api.datastore.FutureHelper.getInternal(FutureHelper.java:71) >> at >> com.google.appengine.api.datastore.FutureHelper.quietGet(FutureHelper.java:32) >> at >> com.google.appengine.api.datastore.QueryResultsSourceImpl.loadMoreEntities(QueryResultsSourceImpl.java:84) >> at >> com.google.appengine.api.datastore.QueryResultIteratorImpl.ensureLoaded(QueryResultIteratorImpl.java:169) >> at >> com.google.appengine.api.datastore.QueryResultIteratorImpl.nextList(QueryResultIteratorImpl.java:115) >> at >> com.google.appengine.api.datastore.LazyList.forceResolveToIndex(LazyList.java:107) >> at >> com.google.appengine.api.datastore.LazyList.resolveToIndex(LazyList.java:83) >> at >> com.google.appengine.api.datastore.LazyList.resolveToIndex(LazyList.java:65) >> at >> com.google.appengine.api.datastore.LazyList.isEmpty(LazyList.java:296) >> at >> com.google.appengine.api.datastore.PreparedQueryImpl.asSingleEntity(PreparedQueryImpl.java:81)* >> at com.app.server.MyServlet.doGet(MyServlet.java:44)* at >> javax.servlet.http.HttpServlet.service(HttpServlet.java:617) >> at javax.servlet.http.HttpServlet.service(HttpServlet.java:717) >> at >> org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:511) >> at >> org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1166) >> at >> com.google.apphosting.utils.servlet.ParseBlobUploadFilter.doFilter(ParseBlobUploadFilter.java:97) >> at >> org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1157) >> at >> com.google.apphosting.runtime.jetty.SaveSessionFilter.doFilter(SaveSessionFilter.java:35) >> at >> org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1157) >> at >> com.google.apphosting.utils.servlet.TransactionCleanupFilter.doFilter(TransactionCleanupFilter.java:43) >> at >> org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1157) >> at >> org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:388) >> at >> org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java:216) >> at >> org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:182) >> at >> org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:765) >> at org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:418) >> at >> com.google.apphosting.runtime.jetty.AppVersionHandlerMap.handle(AppVersionHandlerMap.java:249) >> at >> org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:152) >> at org.mortbay.jetty.Server.handle(Server.java:326) >> at >> org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:542) >> at >> org.mortbay.jetty.HttpConnection$RequestHandler.headerComplete(HttpConnection.java:923) >> at >> com.google.apphosting.runtime.jetty.RpcRequestParser.parseAvailable(RpcRequestParser.java:76) >> at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:404) >> at >> com.google.apphosting.runtime.jetty.JettyServletEngineAdapter.serviceRequest(JettyServletEngineAdapter.java:135) >> at >> com.google.apphosting.runtime.JavaRuntime.handleRequest(JavaRuntime.java:260) >> at >> com.google.apphosting.base.RuntimePb$EvaluationRuntime$2.handleRequest(RuntimePb.java:9805) >> at com.google.net.rpc.impl.RpcUtil.runRpcInApplication(RpcUtil.java:422) >> at com.google.net.rpc.impl.Server$RpcTask.runInContext(Server.java:579) >> at >> com.google.tracing.TraceContext$TraceContextRunnable$1.run(TraceContext.java:449) >> at com.google.tracing.TraceContext.runInContext(TraceContext.java:689) >> at >> com.google.tracing.TraceContext$AbstractTraceContextCallback.runInInheritedContextNoUnref(TraceContext.java:327) >> at >> com.google.tracing.TraceContext$AbstractTraceContextCallback.runInInheritedContext(TraceContext.java:319) >> at >> com.google.tracing.TraceContext$TraceContextRunnable.run(TraceContext.java:447) >> at >> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110) >> at >> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603) >> at java.lang.Thread.run(Thread.java:636) >> >> It points to the place in my app where a do a simple query by key like >> this: >> >> |41| Query qq = new Query("MyPersistentClass"); >> >> |42| qq.addFilter("__key__", Query.FilterOperator.EQUAL, >> >> |43| KeyFactory.createKey("MyPersistentClass", "validKey")); >> >> |44| Entity entity = datastore.prepare(qq).asSingleEntity(); >> >> The queue configuration in the queue.xml goes like this: >> >> <queue> >> >> <name>default</name> >> >> <target>backend</target> >> >> <rate>500/s</rate> >> >> </queue> >> >> The backend is configured as follows in the backend.xml file: >> >> <backend name="task"> >> >> <class>B1</class> >> >> <instances>1</instances> >> >> <options> >> >> <dynamic>true</dynamic> >> >> </options> >> >> </backend> >> >> >> This behavior is across different task queues all running on top of the >> same backend. >> It's also intermittent, the query works as intended for some time and >> then suddenly stops working an then comes back for all the queues at the >> same time. >> While the datastore queries are not working the backend instance shows 0% >> CPU usage but keeps logging messages like the previously mentioned, when I >> see that in the admin console I shut down the backend instance and when it >> turns on again everything seems to work fine at that point. >> >> I hope somebody could help. >> >> Thanks in advance! >> >> >> >> -- You received this message because you are subscribed to the Google Groups 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