> Which Connector are you using?

    <Connector port="8080" protocol="HTTP/1.1" 
               connectionTimeout="20000" 
               redirectPort="8443" 
               URIEncoding="UTF-8"
               compression="on"
               
compressableMimeType="text/html,text/plain,text/css,text/javascript,application/json,application/javascript"
               noCompressionUserAgents=".*MSIE 6.*"/>


> What is the minimum that is required to reproduce the issue?

Wish I knew. This is from our production cluster, so I'm a bit hesitant to 
start experimenting with it. However, there was no configuration change between 
7.0.20 and 7.0.23, I just shut down tomcat, unpacked the 7.0.23 tar.gz, changed 
symlink to point at the new binaries, and restarted.

> 
> 
>> lsof says
> 
> Did you supply any options to lsof?

lsof -nP -u ubuntu|grep 21299|grep "identify protocol"

> Are you using RMI for anything in your application or is this a
> reference to the JMX connection?

I am using RMI only for JMX monitoring. The socket exception times *do* roughly 
correspond to Munin contacting my application every five minutes for getting 
monitoring data, which is logical because they would be requiring a set of new 
file handles.

Ah yes, I also have Terracotta session clustering configured using their Valve. 
That might be using RMI, but I would be expecting to see a lot more errors in 
that case.

/Janne


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