Wow, thanks a lot.  That was exactly what it was.

Something else, just in the event that someone references this email thread in 
the future, I also realized I could put this in my logging.properties file:
org.apache.coyote.level = FINE

I didn't think to add that until after the entropy thing was figured out, but 
it is something that may come in handy in similar situations.


Mark Claassen
Senior Software Engineer

Donnell Systems, Inc.
130 South Main Street
Leighton Plaza Suite 375
South Bend, IN  46601
E-mail: mailto:mclaas...@ocie.net
Voice: (574)232-3784
Fax: (574)232-4014

Disclaimer:
The opinions provided herein do not necessarily state or reflect 
those of Donnell Systems, Inc.(DSI). DSI makes no warranty for and 
assumes no legal liability or responsibility for the posting. 
-----Original Message-----
From: Christopher Schultz <ch...@christopherschultz.net> 
Sent: Thursday, November 1, 2018 1:19 PM
To: users@tomcat.apache.org
Subject: Re: Debugging tomcat native connector

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA256

Mark,

On 11/1/18 11:51, Mark A. Claassen wrote:
> Thanks for the reply.  I am using
> "org.apache.coyote.http11.Http11AprProtocol" in Tomcat 9.
> 
> The NIO connectors worked fine when we tried them, but the native ones 
> seem to start up, but then don’t work.
> 
> Interestingly, we found out that these connectors do eventually start 
> working!  We tried to connect a few hours later and they were working 
> fine. We are now trying to determine exactly how long it takes for 
> them to accept connections in hopes that this will help us figure out 
> what is going on.
> 
> Having a way to debug this better would be helpful.
Are you getting log entries in catalina.out similar to these?

INFO: Starting ProtocolHandler ["ajp-nio-8215"] Oct 10, 2018 4:23:38 PM 
org.apache.coyote.AbstractProtocol start
INFO: Starting ProtocolHandler ["http-nio-127.0.0.1-8217"] Oct 10, 2018 4:23:38 
PM org.apache.catalina.startup.Catalina start
INFO: Server startup in 6819 ms

??

If so, there should also be some timing information for initializing certain 
things. For example, if the server doesn't have much entropy in the entropy 
pool, then you can get a slow-startup while the crypto engine starts. This may 
be worse with the APR connector than for the NIO connectors as the source of 
randomness may be different by default (e.g. /dev/urandom for Java, /dev/random 
for APR). That may not actually be *true*, but it's a possibility.

- -chris
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