Bug 56320

Summary:	DefaultServlet leaks file handles
Product:	Tomcat 8	Reporter:	jfclere <jfclere>
Component:	Connectors	Assignee:	Tomcat Developers Mailing List <dev>
Status:	RESOLVED FIXED
Severity:	regression
Priority:	P2
Version:	8.0.x-trunk
Target Milestone:	----
Hardware:	PC
OS:	Linux

Description jfclere 2014-03-27 08:44:50 UTC

While running ab test against tomcat 8 I have the following failure:
+++
44714 27-Mar-2014 04:41:00.605 SEVERE [http-bio-8001-Acceptor-0] org.apache.tomcat.util.net.JIoEndpoint$Acceptor.run Socket accept failed
244715  java.net.SocketException: Too many open files
244716         at java.net.PlainSocketImpl.socketAccept(Native Method)
244717         at java.net.AbstractPlainSocketImpl.accept(AbstractPlainSocketImpl.java:398)
244718         at java.net.ServerSocket.implAccept(ServerSocket.java:530)
+++
That doesn't depend on the connector.

And lsof says:
+++
[hudson@messaging-09 tc8]$ lsof | grep ROOT | wc -l
32667
[hudson@messaging-09 tc8]$ lsof | grep ROOT | grep 64KiB.bin | wc -l
32667
+++

64KiB.bin is the file I am requesting in ab.

Comment 1 jfclere 2014-03-27 09:18:18 UTC

In fact it seems it is linked with sendfile.

Comment 2 Mark Thomas 2014-03-27 16:59:58 UTC

Thanks for the report. I've fixed this in trunk and it will be included in 8.0.6 onwards.