[jetty-users] Jetty unexpectedly shuts down

[Dale Gallagher <dale.gallagher@xxxxxxxxx>]

Hello everyone

(also posted to user AT jetty.codehaus.org ML)

A Jetty application is deployed on a server of mine, but keeps on
terminating, with little understandable evidence as to why. Any help
in resolving this would be greatly appreciated.

Details:

OS:

 Slackware Linux 13.1
 Linux 2.6.32.16 running as Xen guest OS

Java info:

 java version "1.6.0_20"
 Java(TM) SE Runtime Environment (build 1.6.0_20-b02)
 Java HotSpot(TM) Client VM (build 16.3-b01, mixed mode, sharing)

nginx 0.7.67 config (only pertinent items):

location /app {
   proxy_pass                 http://localhost:50013;
   proxy_set_header        X-Real-IP $remote_addr;
   proxy_set_header        X-Forwarded-For $proxy_add_x_forwarded_for;
   proxy_set_header        Host $http_host;
 }

The Jetty app is launched via daemontools in a run file containing:

#!/bin/sh
cd /path/to/app
exec setuidgid userXYZ /usr/lib/java/bin/java -server -verbose -jar ./app.jar

There is no evidence in the log as to why it sporadically shuts down
(after which daemontools starts it again).

Obviously, when using in-memory sessions, this is not ideal, as users'
sessions terminate.

So, I ran the app using strace, without daemontools and the output can
be found here:

http://pastebin.com/ZKCMWVQM

Thanks
Dale