https://bz.apache.org/bugzilla/show_bug.cgi?id=60035
Bug ID: 60035
Summary: java.io.IOException: Too many open files
Product: Tomcat 8
Version: 8.5.4
Hardware: Other
OS: Linux
Status: NEW
Severity: normal
Priority: P2
Component: Catalina
Assignee: dev@tomcat.apache.org
Reporter: joe.stepow...@gmail.com
Upgraded from Spring Boot v1.3.6 to v.1.4.0, which in turn upgraded the
embedded tomcat container from 8.0.36 to 8.5.4.
We are now seeing a bunch of the following exceptions after the app has been
running for a number of hours:
2016-08-24 00:00:03.129 ERROR 15154 ---
[https-jsse-nio-172.30.72.54-30020-Acceptor-0] []
org.apache.tomcat.util.net.NioEndpoint : Socket accept failed
java.io.IOException: Too many open files
at sun.nio.ch.ServerSocketChannelImpl.accept0(Native Method)
at
sun.nio.ch.ServerSocketChannelImpl.accept(ServerSocketChannelImpl.java:422)
at
sun.nio.ch.ServerSocketChannelImpl.accept(ServerSocketChannelImpl.java:250)
at
org.apache.tomcat.util.net.NioEndpoint$Acceptor.run(NioEndpoint.java:457)
at java.lang.Thread.run(Thread.java:745)
Running lsof for the Spring Boot pid shows thousands of entries like the
following:
java 9694 xxx 1251u sock 0,6 0t0 6636870 can't
identify protocol
Downgrading to embedded tomcat 8.0.36 (whilst remaining on Spring Boot 1.4.0)
fixes the issue.
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