1. What is the significance of GET requests with what seems like no resource
request being made? They all seem to come from the side of the globe.
such as:
220.181.108.165 - - [23/Feb/2013:22:41:22 -0700] "GET / HTTP/1.1" 200 13258
2. Why do some people like making dozens of requests in a row to get the
favicon? Even if it was there, why do they want it?
such as:
75.171.44.236 - - [23/Feb/2013:21:40:49 -0700] "GET /favicon.ico HTTP/1.1" 404
6386
75.171.44.236 - - [23/Feb/2013:21:40:53 -0700] "GET /favicon.ico HTTP/1.1" 404
6386
75.171.44.236 - - [23/Feb/2013:21:40:54 -0700] "GET /favicon.ico HTTP/1.1" 404
6386
75.171.44.236 - - [23/Feb/2013:21:40:54 -0700] "GET /favicon.ico HTTP/1.1" 404
6386
75.171.44.236 - - [23/Feb/2013:21:40:55 -0700] "GET /favicon.ico HTTP/1.1" 404
6386
75.171.44.236 - - [23/Feb/2013:21:40:55 -0700] "GET /favicon.ico HTTP/1.1" 404
6386
75.171.44.236 - - [23/Feb/2013:21:40:55 -0700] "GET /favicon.ico HTTP/1.1" 404
6386
75.171.44.236 - - [23/Feb/2013:21:40:55 -0700] "GET /favicon.ico HTTP/1.1" 404
6386
75.171.44.236 - - [23/Feb/2013:21:40:56 -0700] "GET /favicon.ico HTTP/1.1" 404
6386
75.171.44.236 - - [23/Feb/2013:21:40:57 -0700] "GET /favicon.ico HTTP/1.1" 404
6386
75.171.44.236 - - [23/Feb/2013:21:40:58 -0700] "GET /favicon.ico HTTP/1.1" 404
6386
75.171.44.236 - - [23/Feb/2013:21:41:06 -0700] "GET /favicon.ico HTTP/1.1" 404
6386
75.171.44.236 - - [23/Feb/2013:21:41:06 -0700] "GET /favicon.ico HTTP/1.1" 404
6386
75.171.44.236 - - [23/Feb/2013:21:41:10 -0700] "GET /favicon.ico HTTP/1.1" 404
6386
75.171.44.236 - - [23/Feb/2013:21:41:14 -0700] "GET /favicon.ico HTTP/1.1" 404
6386
75.171.44.236 - - [23/Feb/2013:21:41:14 -0700] "GET /favicon.ico HTTP/1.1" 404
6386
75.171.44.236 - - [23/Feb/2013:21:41:16 -0700] "GET /favicon.ico HTTP/1.1" 404
6386
75.171.44.236 - - [23/Feb/2013:21:41:16 -0700] "GET /favicon.ico HTTP/1.1" 404
6386
75.171.44.236 - - [23/Feb/2013:21:41:20 -0700] "GET /favicon.ico HTTP/1.1" 404
6386
75.171.44.236 - - [23/Feb/2013:21:41:20 -0700] "GET /favicon.ico HTTP/1.1" 404
6386
75.171.44.236 - - [23/Feb/2013:21:41:23 -0700] "GET /favicon.ico HTTP/1.1" 404
6386
75.171.44.236 - - [23/Feb/2013:21:41:23 -0700] "GET /favicon.ico HTTP/1.1" 404
6386
75.171.44.236 - - [23/Feb/2013:21:41:35 -0700] "GET /favicon.ico HTTP/1.1" 404
6386
75.171.44.236 - - [23/Feb/2013:21:41:35 -0700] "GET /favicon.ico HTTP/1.1" 404
6386
75.171.44.236 - - [23/Feb/2013:21:41:55 -0700] "GET /favicon.ico HTTP/1.1" 404
6386
75.171.44.236 - - [23/Feb/2013:21:41:55 -0700] "GET /favicon.ico HTTP/1.1" 404
6386
many more...
3. Can I assume that com.esri.rest.catalog.CatalogServlet.service doesn't clean
up after itself well? This was the fifth occurrence of the same exception in
localhost logs before I start getting out of memory errors.
such as:
Feb 24, 2013 5:46:57 AM org.apache.catalina.core.ApplicationDispatcher invoke
SEVERE: Servlet.service() for servlet catalog threw exception
com.esri.rest.HttpException: Service 'AGIS_MARICOPA' of type 'MapServer' does
not exist or is inaccessible.
at com.esri.rest.catalog.CatalogServlet.service(CatalogServlet.java:176)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:728)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:305)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
at
org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:749)
at
org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:487)
at
org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:379)
at
org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:339)
at com.esri.rest.DispatchServlet.service(DispatchServlet.java:123)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:728)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:305)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
at
com.esri.rest.security.SecurityFilter.doFilter(SecurityFilter.java:79)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
at com.esri.rest.RestFilter.doFilter(RestFilter.java:81)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
at
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:222)
at
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:123)
at
org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:472)
at
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:171)
at
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:99)
at
org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:936)
at
org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118)
at
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:407)
at
org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1004)
at
org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:589)
at
org.apache.tomcat.util.net.AprEndpoint$SocketProcessor.run(AprEndpoint.java:1852)
at
java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:895)
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:918)
at java.lang.Thread.run(Thread.java:662)
Feb 24, 2013 7:32:56 AM org.apache.catalina.core.StandardWrapperValve invoke
SEVERE: Servlet.service() for servlet [Faces Servlet] in context with path []
threw exception [PermGen space] with root cause
java.lang.OutOfMemoryError: PermGen space
Feb 24, 2013 7:36:19 AM org.apache.catalina.core.StandardWrapperValve invoke
SEVERE: Servlet.service() for servlet [Faces Servlet] in context with path []
threw exception [PermGen space] with root cause
java.lang.OutOfMemoryError: PermGen space
Feb 24, 2013 7:36:32 AM org.apache.catalina.core.StandardWrapperValve invoke
SEVERE: Servlet.service() for servlet [Faces Servlet] in context with path []
threw exception [PermGen space] with root cause
java.lang.OutOfMemoryError: PermGen space
Feb 24, 2013 7:39:17 AM org.apache.catalina.core.StandardWrapperValve invoke
SEVERE: Servlet.service() for servlet [Faces Servlet] in context with path []
threw exception [PermGen space] with root cause
java.lang.OutOfMemoryError: PermGen space
Feb 24, 2013 7:40:09 AM org.apache.catalina.core.StandardWrapperValve invoke
SEVERE: Servlet.service() for servlet [Faces Servlet] in context with path []
threw exception [PermGen space] with root cause
java.lang.OutOfMemoryError: PermGen space
Feb 24, 2013 7:41:56 AM org.apache.catalina.core.StandardWrapperValve invoke
SEVERE: Servlet.service() for servlet [Faces Servlet] in context with path []
threw exception [PermGen space] with root cause
java.lang.OutOfMemoryError: PermGen space
Feb 24, 2013 7:41:58 AM org.apache.catalina.core.ApplicationDispatcher invoke
SEVERE: Servlet.service() for servlet Faces Servlet threw exception
java.lang.OutOfMemoryError: PermGen space
Feb 24, 2013 7:41:58 AM org.apache.catalina.core.StandardHostValve custom
SEVERE: Exception Processing
ErrorPage[exceptionType=javax.servlet.ServletException,
location=/WEB-INF/error/servlet_exception_template.xhtml]
javax.servlet.ServletException: PermGen space
at javax.faces.webapp.FacesServlet.service(FacesServlet.java:321)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:305)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
at
org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:749)
at
org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:489)
at
org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:412)
at
org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:339)
at
org.apache.catalina.core.StandardHostValve.custom(StandardHostValve.java:467)
at
org.apache.catalina.core.StandardHostValve.throwable(StandardHostValve.java:412)
at
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:201)
at
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:99)
at
org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:936)
at
org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118)
at
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:407)
at
org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1004)
at
org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:589)
at
org.apache.tomcat.util.net.AprEndpoint$SocketProcessor.run(AprEndpoint.java:1852)
at
java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:895)
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:918)
at java.lang.Thread.run(Thread.java:662)
Caused by: java.lang.OutOfMemoryError: PermGen space
Feb 24, 2013 7:42:07 AM org.apache.catalina.core.StandardWrapperValve invoke
SEVERE: Servlet.service() for servlet [Faces Servlet] in context with path []
threw exception [PermGen space] with root cause
java.lang.OutOfMemoryError: PermGen space
Feb 24, 2013 8:19:59 AM org.apache.catalina.core.StandardWrapperValve invoke
SEVERE: Servlet.service() for servlet [Faces Servlet] in context with path []
threw exception [PermGen space] with root cause
java.lang.OutOfMemoryError: PermGen space
Feb 24, 2013 8:32:55 AM org.apache.catalina.core.StandardWrapperValve invoke
SEVERE: Servlet.service() for servlet [Faces Servlet] in context with path []
threw exception [PermGen space] with root cause
java.lang.OutOfMemoryError: PermGen space
Feb 24, 2013 8:40:46 AM org.apache.catalina.core.StandardWrapperValve invoke
SEVERE: Servlet.service() for servlet [Faces Servlet] in context with path []
threw exception [PermGen space] with root cause
java.lang.OutOfMemoryError: PermGen space
Feb 24, 2013 8:40:56 AM org.apache.catalina.core.StandardWrapperValve invoke
SEVERE: Servlet.service() for servlet [Faces Servlet] in context with path []
threw exception [PermGen space] with root cause
java.lang.OutOfMemoryError: PermGen space
Feb 24, 2013 8:40:57 AM org.apache.catalina.core.ApplicationDispatcher invoke
SEVERE: Servlet.service() for servlet Faces Servlet threw exception
java.lang.OutOfMemoryError: PermGen space
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