https://issues.apache.org/bugzilla/show_bug.cgi?id=47133
Summary: Reloading web application causes CPU usage to spike
when using AIO
Product: Tomcat 6
Version: 6.0.18
Platform: PC
OS/Version: Windows Vista
Status: NEW
Severity: normal
Priority: P2
Component: Connectors
AssignedTo: [email protected]
ReportedBy: [email protected]
Created an attachment (id=23568)
--> (https://issues.apache.org/bugzilla/attachment.cgi?id=23568)
Web Application
When using Tomcat 6 with Advanced IO the CPU usage will go to 100% under the
following sequence of events:
1) Start Tomcat
2) "Reload" AIO-Enabled Web Application from Tomcat Web Application Manager
page
3) Open Web Application
4) Terminate Web Application in middle of a request (i.e. Close Browser or
issue an XMLHttpRequest.abort()).
Once this is done the CPU will jump dramatically.
I have attached a NetBeans project that shows this phenomenon. When viewing
the index.jsp file, just click the "End" button.
It should be noted that CPU usage remains normal if the web application is
first undeployed then deployed again. CPU usage will only spike if the web
application is explicitly reloaded.
Thanks,
Ken
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