Appid: steprep, python, QPS around 9-10

We're still seeing large error rates on requests (primarily cron/
taskqueue), seemingly to do with autoscaling. Here's an example chunk:

09-27 03:41PM 22.306 /_ah/queue/deferred 500 35908ms
09-27 03:41PM 48.096 /_ah/queue/deferred 500 10028ms
09-27 03:41PM 28.501 /_ah/queue/deferred 500 29527ms
09-27 03:41PM 46.634 /_ah/queue/deferred 500 10034ms
09-27 03:41PM 20.134 /_ah/queue/deferred 500 35703ms
09-27 03:41PM 20.146 /_ah/queue/deferred 500 35691ms
09-27 03:41PM 18.991 /mgmt/jobs/put/deferred/?
jobId=6c7dae4c-7c6a-4290-96b7-8cae4bd66410 500 36756ms
09-27 03:41PM 45.607 /_ah/queue/deferred 500 10013ms
09-27 03:41PM 45.297 /mgmt/jobs/put/deferred/?jobId=c5f66519-
f37b-4c06-87c8-ac1fe3db6633 500 10040ms
09-27 03:41PM 44.434 /_ah/queue/deferred 500 10040ms
09-27 03:41PM 43.555 /_ah/queue/deferred 500 10026ms
09-27 03:41PM 43.236 /_ah/queue/deferred 500 10029ms
09-27 03:41PM 43.230 /_ah/queue/deferred 500 10005ms
09-27 03:41PM 42.436 /_ah/queue/deferred 500 10013ms
09-27 03:41PM 22.305 /_ah/queue/deferred 500 29862ms
09-27 03:41PM 41.949 /_ah/queue/deferred 500 10040ms
09-27 03:41PM 22.174 /_ah/queue/deferred 500 29437ms
09-27 03:41PM 41.446 /_ah/queue/deferred 500 10006ms
09-27 03:41PM 41.308 /_ah/queue/deferred 500 10041ms
09-27 03:41PM 41.188 /_ah/queue/deferred 500 10008ms
09-27 03:41PM 40.760 /_ah/queue/deferred 500 10050ms
09-27 03:41PM 40.551 /_ah/queue/deferred 500 10132ms
09-27 03:41PM 09.059 /_ah/queue/deferred 500 41582ms
09-27 03:41PM 21.013 /mgmt/search/start/ 500 29442ms
09-27 03:41PM 39.855 /_ah/queue/deferred 500 10020ms

Ikai, please do let me know if there's anything I can do to help from
my end.

Thanks,
j


On Sep 26, 2:43 am, Robin <[email protected]> wrote:
> I have seen this just once on Java. The app ID is visualwebflows. All
> custom code, using the datastore directly without an ORM.
>
> Only happened once, but the site is in development so not seeing more
> than 100 hits a day.
>
> I have redacted the URLs used, but below is a stack trace from the
> error log.
>
> Robin Message
>
> [23/Sep/2010:05:58:23 -0700] "GET REDACTED  HTTP/1.1" 500 0 - "Mozilla/
> 5.0 (X11; U; Linux x86_64; en-GB; rv:1.9.1.9) Gecko/20100330 Fedora/
> 3.5.9-1.fc11 Firefox/3.5.9,gzip(gfe)" "visualwebflows.appspot.com"
> ms=30574 cpu_ms=706 api_cpu_ms=64 cpm_usd=0.019645 pending_ms=232
> exit_code=104
>
> #
> W 09-23 05:58AM 23.264
>
> Error for REDACTED
> com.google.apphosting.runtime.HardDeadlineExceededError: This request
> (322478a37b051ea5) started at 2010/09/23 12:57:52.952 UTC and was
> still executing at 2010/09/23 12:58:22.751 UTC.
>         at
> com.google.appengine.runtime.Request.process-322478a37b051ea5(Request.java)
>         at java.io.FileInputStream.readBytes(Native Method)
>         at java.io.FileInputStream.read(FileInputStream.java:231)
>         at sun.misc.Resource.getBytes(Resource.java:114)
>         at java.net.URLClassLoader.defineClass(URLClassLoader.java:273)
>         at sun.reflect.GeneratedMethodAccessor4.invoke(Unknown Source)
>         at
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImp 
> l.java:
> 43)
>         at java.lang.reflect.Method.invoke(Method.java:616)
>         at java.lang.ClassLoader.loadClass(ClassLoader.java:268)
>         at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:336)
>         at
> net.thetadesign.cherry.server.EditServlet.getOutputFormatter(EditServlet.ja 
> va:
> 215)
>         at
> net.thetadesign.cherry.server.EditServlet.evaluate(EditServlet.java:
> 138)
>         at net.thetadesign.cherry.server.EditServlet.render(EditServlet.java:
> 108)
>         at net.thetadesign.cherry.server.EditServlet.render(EditServlet.java:
> 50)
>         at
> net.thetadesign.cherry.server.AbstractServlet.showController(AbstractServle 
> t.java:
> 176)
>         at
> net.thetadesign.cherry.server.AbstractServlet.doGet(AbstractServlet.java:
> 144)
>         at javax.servlet.http.HttpServlet.service(HttpServlet.java:693)
>         at javax.servlet.http.HttpServlet.service(HttpServlet.java:806)
>         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(ParseBlo 
> bUploadFilter.java:
> 97)
>         at org.mortbay.jetty.servlet.ServletHandler
> $CachedChain.doFilter(ServletHandler.java:1157)
>         at
> com.google.apphosting.runtime.jetty.SaveSessionFilter.doFilter(SaveSessionF 
> ilter.java:
> 35)
>         at org.mortbay.jetty.servlet.ServletHandler
> $CachedChain.doFilter(ServletHandler.java:1157)
>         at
> com.google.apphosting.utils.servlet.TransactionCleanupFilter.doFilter(Trans 
> actionCleanupFilter.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(AppVersionH 
> andlerMap.java:
> 238)
>         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
> $RequestHandler.headerComplete(HttpConnection.java:923)
>         at
> com.google.apphosting.runtime.jetty.RpcRequestParser.parseAvailable(RpcRequ 
> estParser.java:
> 76)
>         at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:404)
>         at
> com.google.apphosting.runtime.jetty.JettyServletEngineAdapter.serviceReques 
> t(JettyServletEngineAdapter.java:
> 135)
>         at
> com.google.apphosting.runtime.JavaRuntime.handleRequest(JavaRuntime.java:
> 251)
>         at com.google.apphosting.base.RuntimePb$EvaluationRuntime
> $6.handleBlockingRequest(RuntimePb.java:6784)
>         at com.google.apphosting.base.RuntimePb$EvaluationRuntime
> $6.handleBlockingRequest(RuntimePb.java:6782)
>         at
> com.google.net.rpc.impl.BlockingApplicationHandler.handleRequest(BlockingAp 
> plicationHandler.java:
> 24)
>         at com.google.net.rpc.impl.RpcUtil.runRpcInApplication(RpcUtil.java:
> 398)
>         at com.google.net.rpc.impl.Server$2.run(Server.java:852)
>         at
> com.google.tracing.LocalTraceSpanRunnable.run(LocalTraceSpanRunnable.java:
> 56)
>         at
> com.google.tracing.LocalTraceSpanBuilder.internalContinueSpan(LocalTraceSpa 
> nBuilder.java:
> 576)
>         at com.google.net.rpc.impl.Server.startRpc(Server.java:807)
>         at com.google.net.rpc.impl.Server.processRequest(Server.java:369)
>         at
> com.google.net.rpc.impl.ServerConnection.messageReceived(ServerConnection.j 
> ava:
> 442)
>         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.j 
> ava:
> 831)
>         at
> com.google.net.async.EventDispatcher.internalLoop(EventDispatcher.java:
> 207)
>         at com.google.net.async.EventDispatcher.loop(EventDispatcher.java:
> 103)
>         at
> com.google.net.rpc.RpcService.runUntilServerShutdown(RpcService.java:
> 251)
>         at com.google.apphosting.runtime.JavaRuntime
> $RpcRunnable.run(JavaRuntime.java:418)
>         at java.lang.Thread.run(Thread.java:636)

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