https://issues.apache.org/bugzilla/show_bug.cgi?id=49890
Summary: Nio Selector issue on linux platform
Product: Tomcat 6
Version: 6.0.20
Platform: PC
OS/Version: Linux
Status: NEW
Severity: normal
Priority: P2
Component: Connectors
AssignedTo: dev@tomcat.apache.org
ReportedBy: andrey.timofe...@gmail.com
Created an attachment (id=25997)
--> (https://issues.apache.org/bugzilla/attachment.cgi?id=25997)
NioEndpoint.java and simple web application
sometimes ,server's cpu reaches 100%,and keep 100% all the time,until restart
the server.
Reproduced with java versions: 1.6.0_07, 1.6.0_18, 1.6.0_21.
It is duplicate of issue: Bug 46373.
It seams that Jetty guys fixed that problem:
http://jira.codehaus.org/browse/JETTY-937?focusedCommentId=168060&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel.
I added some logging to NioEndpoint.java. With this logging we can see that
selector.select(timeout) sometimes return zero keys on linux plutform. And it
is never reproduced on windows platform.
In the attach:
NioEndpoint.7z - patched NioEndpoint.java (with logging)
web.7z - simple web application. To reproduce jvm bug we should do several
requests(we can just press F5 in browser and hold button) to web application.
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