今日のappengineは調子悪い？

技術
  • 朝方TaskQueueで下記２つのエラーが頻発していた。
  • TaskQueueなのでエラー時に自動リトライされて最終的には正常終了していた。
  • いつもなら3分で終わる処理が30分ほどかかった。
Request was aborted after waiting too long to attempt to service your request. 
Most likely, this indicates that you have reached your simultaneous active request limit. 
This is almost always due to excessively high latency in your app. 
Please see http://code.google.com/appengine/docs/quotas.html for more details.

quotaと言ってもいままでこんなエラーでなかったんですが、結局正常終了してるし。。。

  W 10-13 02:17PM 46.537

  org.slim3.controller.Controller runBare: An error occurred for the API request datastore_v3.RunQuery().
  com.google.apphosting.api.ApiProxy$UnknownException: An error occurred for the API request datastore_v3.RunQuery().
  	at com.google.apphosting.runtime.ApiProxyImpl.doSyncCall(ApiProxyImpl.java:198)
  	at com.google.apphosting.runtime.ApiProxyImpl.access$000(ApiProxyImpl.java:37)
  	at com.google.apphosting.runtime.ApiProxyImpl$1.run(ApiProxyImpl.java:75)
  	at com.google.apphosting.runtime.ApiProxyImpl$1.run(ApiProxyImpl.java:71)
  	at java.security.AccessController.doPrivileged(Native Method)
  	at com.google.apphosting.runtime.ApiProxyImpl.makeSyncCall(ApiProxyImpl.java:71)
  	at com.google.apphosting.runtime.ApiProxyImpl.makeSyncCall(ApiProxyImpl.java:37)
  	at com.google.apphosting.api.ApiProxy.makeSyncCall(ApiProxy.java:79)
  	at com.google.appengine.api.datastore.DatastoreApiHelper.makeSyncCall(DatastoreApiHelper.java:52)
  	at com.google.appengine.api.datastore.DatastoreServiceImpl$PreparedQueryImpl.runQuery(DatastoreServiceImpl.java:346)
  	at com.google.appengine.api.datastore.DatastoreServiceImpl$PreparedQueryImpl.access$100(DatastoreServiceImpl.java:272)
  	at com.google.appengine.api.datastore.DatastoreServiceImpl$PreparedQueryImpl$1.iterator(DatastoreServiceImpl.java:306)
  	at org.datanucleus.store.appengine.query.RuntimeExceptionWrappingIterable.iterator(RuntimeExceptionWrappingIterable.java:42)
  	at org.datanucleus.store.appengine.query.StreamingQueryResult.<init>(StreamingQueryResult.java:77)
  	at org.datanucleus.store.appengine.query.DatastoreQuery.newStreamingQueryResultForEntities(DatastoreQuery.java:324)
  	at org.datanucleus.store.appengine.query.DatastoreQuery.fulfillEntityQuery(DatastoreQuery.java:310)
  	at org.datanucleus.store.appengine.query.DatastoreQuery.performExecute(DatastoreQuery.java:242)
  	at org.datanucleus.store.appengine.query.JDOQLQuery.performExecute(JDOQLQuery.java:84)
  	at org.datanucleus.store.query.Query.executeQuery(Query.java:1489)
  	at org.datanucleus.store.query.Query.executeWithArray(Query.java:1371)
  	at org.datanucleus.jdo.JDOQuery.executeWithArray(JDOQuery.java:312)
  	at org.slim3.jdo.SelectQuery.getResultList(SelectQuery.java:160)
  	at org.slim3.jdo.SelectQuery.getFirstResult(SelectQuery.java:188)
  	at ActionController.run(ActionController.java:80)
  	at org.slim3.controller.Controller.runBare(Controller.java:94)
  	at org.slim3.controller.FrontController.processController(FrontController.java:503)
  	at org.slim3.controller.FrontController.doFilterInternal(FrontController.java:310)
  	at org.slim3.controller.FrontController.doFilter(FrontController.java:263)
  	at org.slim3.controller.FrontController.doFilter(FrontController.java:226)
  	at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1084)
  	at org.slim3.jdo.JDOFilter.doFilter(JDOFilter.java:81)
  	at org.slim3.jdo.JDOFilter.doFilter(JDOFilter.java:51)
  	at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1084)
  	at org.slim3.controller.HotReloadingFilter.doFilter(HotReloadingFilter.java:195)
  	at org.slim3.controller.HotReloadingFilter.doFilter(HotReloadingFilter.java:160)
  	at org.mortbay.jetty.servlet.ServletHandler$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$RequestHandler.headerComplete(HttpConnection.java:830)
  	at com.google.apphosting.runtime.jetty.RpcRequestParser.parseAvailable(RpcRequestParser.java:76)
  	at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:381)
  	at com.google.apphosting.runtime.jetty.JettyServletEngineAdapter.serviceRequest(JettyServletEngineAdapter.java:139)
  	at com.google.apphosting.runtime.JavaRuntime.handleRequest(JavaRuntime.java:239)
  	at com.google.apphosting.base.RuntimePb$EvaluationRuntime$6.handleBlockingRequest(RuntimePb.java:5135)
  	at com.google.apphosting.base.RuntimePb$EvaluationRuntime$6.handleBlockingRequest(RuntimePb.java:5133)
  	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$2.run(Server.java:814)
  	at com.google.tracing.LocalTraceSpanRunnable.run(LocalTraceSpanRunnable.java:56)
  	at com.google.tracing.LocalTraceSpanBuilder.internalContinueSpan(LocalTraceSpanBuilder.java:516)
  	at com.google.net.rpc.impl.Server.startRpc(Server.java:769)
  	at com.google.net.rpc.impl.Server.processRequest(Server.java:351)
  	at com.google.net.rpc.impl.ServerConnection.messageReceived(ServerConnection.java:437)
  	at com.google.net.rpc.impl.RpcConnection.parseMessages(RpcConnection.java:319)
  	at com.google.net.rpc.impl.RpcConnection.dataReceived(RpcConnection.java:290)
  	at com.google.net.async.Connection.handleReadEvent(Connection.java:436)
  	at com.google.net.async.EventDispatcher.processNetworkEvents(EventDispatcher.java:762)
  	at com.google.net.async.EventDispatcher.internalLoop(EventDispatcher.java:207)
  	at com.google.net.async.EventDispatcher.loop(EventDispatcher.java:101)
  	at com.google.net.rpc.RpcService.runUntilServerShutdown(RpcService.java:251)
  	at com.google.apphosting.runtime.JavaRuntime$RpcRunnable.run(JavaRuntime.java:396)
  	at java.lang.Thread.run(Unknown Source)

UnknownExceptionはappengine側でも不明ということか。。。