I suspect the cause of the problem is the ping cron every 3 minutes. I
also get the following warning:
"This request used a high amount of CPU, and was roughly 1.2 times
over the average request CPU limit. High CPU requests have a small
quota, and if you exceed this quota, your app will be temporarily
disabled."
The ping cron is very simple task. It accesses an URL which output a
short text
Full stack trace:
#
0.1.0.1 - - [08/Jan/2010:07:22:05 -0800] "GET /ping HTTP/1.1" 200 45 -
- "mobisociety.appspot.com"
#
I 01-08 07:21AM 43.585
javax.servlet.ServletContext log: Initializing Spring root
WebApplicationContext
#
W 01-08 07:21AM 47.796
org.springframework.security.config.method.GlobalMethodSecurityBeanDefinitionParser
parse: Expressions were enabled for method security but no
SecurityExpressionHandler was configured. All hasPermision()
expressions will evaluate to false.
#
I 01-08 07:22AM 03.596
javax.servlet.ServletContext log:
org.tuckey.web.filters.urlrewrite.UrlRewriteFilter INFO: loaded (conf
ok)
#
I 01-08 07:22AM 03.689
javax.servlet.ServletContext log: Initializing Spring FrameworkServlet
'dispatcher'
#
E 01-08 07:22AM 05.397
org.apache.jasper.runtime.JspFactoryImpl internalGetPageContext:
Exception initializing page context
java.lang.ExceptionInInitializerError
at com.google.appengine.api.memcache.MemcacheServicePb
$MemcacheSetResponse.<clinit>(MemcacheServicePb.java:2649)
at com.google.appengine.api.memcache.MemcacheServiceImpl.put
(MemcacheServiceImpl.java:315)
at com.google.appengine.api.memcache.MemcacheServiceImpl.put
(MemcacheServiceImpl.java:376)
at com.google.apphosting.runtime.jetty.SessionManager.createSession
(SessionManager.java:334)
at com.google.apphosting.runtime.jetty.SessionManager
$AppEngineSession.<init>(SessionManager.java:135)
at com.google.apphosting.runtime.jetty.SessionManager.newSession
(SessionManager.java:265)
at com.google.apphosting.runtime.jetty.SessionManager.newSession
(SessionManager.java:50)
at org.mortbay.jetty.servlet.AbstractSessionManager.newHttpSession
(AbstractSessionManager.java:413)
at org.mortbay.jetty.Request.getSession(Request.java:1005)
at org.mortbay.jetty.Request.getSession(Request.java:977)
at org.apache.jasper.runtime.PageContextImpl._initialize
(PageContextImpl.java:147)
at org.apache.jasper.runtime.PageContextImpl.initialize
(PageContextImpl.java:122)
at org.apache.jasper.runtime.JspFactoryImpl.internalGetPageContext
(JspFactoryImpl.java:104)
at org.apache.jasper.runtime.JspFactoryImpl.access$000
(JspFactoryImpl.java:37)
at org.apache.jasper.runtime.JspFactoryImpl
$PrivilegedGetPageContext.run(JspFactoryImpl.java:151)
at
com.google.apphosting.runtime.security.shared.intercept.java.security.AccessController_.doPrivileged
(AccessController_.java:34)
at org.apache.jasper.runtime.JspFactoryImpl.getPageContext
(JspFactoryImpl.java:59)
at org.apache.jsp.ping_jsp._jspService(ping_jsp.java:33)
at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:94)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:806)
at org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:
487)
at org.mortbay.jetty.servlet.ServletHandler.handle
(ServletHandler.java:362)
at org.mortbay.jetty.security.SecurityHandler.handle
(SecurityHandler.java:216)
at org.mortbay.jetty.servlet.SessionHandler.handle
(SessionHandler.java:181)
at org.mortbay.jetty.handler.ContextHandler.handle
(ContextHandler.java:712)
at org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:
405)
at org.mortbay.jetty.servlet.Dispatcher.forward(Dispatcher.java:268)
at org.mortbay.jetty.servlet.Dispatcher.forward(Dispatcher.java:126)
at org.tuckey.web.filters.urlrewrite.NormalRewrittenUrl.doRewrite
(NormalRewrittenUrl.java:195)
at org.tuckey.web.filters.urlrewrite.RuleChain.handleRewrite
(RuleChain.java:159)
at org.tuckey.web.filters.urlrewrite.RuleChain.doRules(RuleChain.java:
141)
at org.tuckey.web.filters.urlrewrite.UrlRewriter.processRequest
(UrlRewriter.java:90)
at org.tuckey.web.filters.urlrewrite.UrlRewriteFilter.doFilter
(UrlRewriteFilter.java:417)
at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter
(ServletHandler.java:1084)
at
org.springframework.orm.jpa.support.OpenEntityManagerInViewFilter.doFilterInternal
(OpenEntityManagerInViewFilter.java:113)
at org.springframework.web.filter.OncePerRequestFilter.doFilter
(OncePerRequestFilter.java:76)
at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter
(ServletHandler.java:1084)
at org.springframework.security.web.FilterChainProxy.doFilter
(FilterChainProxy.java:144)
at org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate
(DelegatingFilterProxy.java:237)
at org.springframework.web.filter.DelegatingFilterProxy.doFilter
(DelegatingFilterProxy.java:167)
at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter
(ServletHandler.java:1084)
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
$6.handleBlockingRequest(RuntimePb.java:5235)
at com.google.apphosting.base.RuntimePb$EvaluationRuntime
$6.handleBlockingRequest(RuntimePb.java:5233)
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$2.run(Server.java:838)
at com.google.tracing.LocalTraceSpanRunnable.run
(LocalTraceSpanRunnable.java:56)
at com.google.tracing.LocalTraceSpanBuilder.internalContinueSpan
(LocalTraceSpanBuilder.java:536)
at com.google.net.rpc.impl.Server.startRpc(Server.java:793)
at com.google.net.rpc.impl.Server.processRequest(Server.java:368)
at com.google.net.rpc.impl.ServerConnection.messageReceived
(ServerConnection.java:448)
at com.google.net.rpc.impl.RpcConnection.parseMessages
(RpcConnection.java:319)
at com.google.net.rpc.impl.RpcConnection.dataReceived
(RpcConnection.java:290)
at com.google.net.async.Connection.handleReadEvent(Connection.java:
466)
at com.google.net.async.EventDispatcher.processNetworkEvents
(EventDispatcher.java:759)
at com.google.net.async.EventDispatcher.internalLoop
(EventDispatcher.java:205)
at com.google.net.async.EventDispatcher.loop(EventDispatcher.java:
101)
at com.google.net.rpc.RpcService.runUntilServerShutdown
(RpcService.java:251)
at com.google.apphosting.runtime.JavaRuntime$RpcRunnable.run
(JavaRuntime.java:394)
at java.lang.Thread.run(Unknown Source)
Caused by: com.google.apphosting.api.DeadlineExceededException: This
request (aa99528a97529b43) started at 2010/01/08 15:21:36.785 UTC and
was still executing at 2010/01/08 15:22:05.335 UTC.
at com.google.protobuf.CodedInputStream.readRawByte
(CodedInputStream.java:665)
at com.google.protobuf.CodedInputStream.readRawVarint32
(CodedInputStream.java:290)
at com.google.protobuf.CodedInputStream.readTag(CodedInputStream.java:
58)
at com.google.protobuf.DescriptorProtos$FieldDescriptorProto
$Builder.mergeFrom(DescriptorProtos.java:2794)
at com.google.protobuf.DescriptorProtos$FieldDescriptorProto
$Builder.mergeFrom(DescriptorProtos.java:2679)
at com.google.protobuf.CodedInputStream.readMessage
(CodedInputStream.java:229)
at com.google.protobuf.DescriptorProtos$DescriptorProto
$Builder.mergeFrom(DescriptorProtos.java:1911)
at com.google.protobuf.DescriptorProtos$DescriptorProto
$Builder.mergeFrom(DescriptorProtos.java:1745)
at com.google.protobuf.CodedInputStream.readMessage
(CodedInputStream.java:229)
at com.google.protobuf.DescriptorProtos$DescriptorProto
$Builder.mergeFrom(DescriptorProtos.java:1917)
at com.google.protobuf.DescriptorProtos$DescriptorProto
$Builder.mergeFrom(DescriptorProtos.java:1745)
at com.google.protobuf.
#
W 01-08 07:22AM 05.521
This request used a high amount of CPU, and was roughly 1.2 times over
the average request CPU limit. High CPU requests have a small quota,
and if you exceed this quota, your app will be temporarily disabled.
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