java - Using Jetty 8 memory commitment is increasing constantly until server fails with spring cache

Question

I am using jetty version 8.1.8.v20121106 and have a quite simple spring mvc application deployed. During server uptime the memory commitment is increasing until the server fails.

Also threads are increasing dramatically over time

I have a lot of sleeping and waiting for event threads, as you can see here

root      1568  2.9 12.4 14014884 4111368 ?    Sl   10:03   0:07 /usr/bin/java -Djetty.home=/opt/jetty/jetty -Djava.io.tmpdir=/tmp -javaagent:/home/ydadmin/newrelic/newrelic.jar -jar /opt/jetty/jetty/star
root      1568  0.7 12.4 14014884 4111368 ?    Sl   10:03   0:02 /usr/bin/java -Djetty.home=/opt/jetty/jetty -Djava.io.tmpdir=/tmp -javaagent:/home/ydadmin/newrelic/newrelic.jar -jar /opt/jetty/jetty/star
root      1568  0.0 12.4 14014884 4111368 ?    Sl   10:03   0:00 /usr/bin/java -Djetty.home=/opt/jetty/jetty -Djava.io.tmpdir=/tmp -javaagent:/home/ydadmin/newrelic/newrelic.jar -jar /opt/jetty/jetty/star
root      1568  0.0 12.4 14014884 4111368 ?    Sl   10:03   0:00 /usr/bin/java -Djetty.home=/opt/jetty/jetty -Djava.io.tmpdir=/tmp -javaagent:/home/ydadmin/newrelic/newrelic.jar -jar /opt/jetty/jetty/star

I am assuming it is because of lack in jetty pooling and not closing old connections, but why and how to solve that? My config currently looks like this: http://pastebin.com/NDrUKwCv

How can I find out, what is causing this issue?

UPDATE: found with jsstack a lot of this threads maybe those can help

http://pastebin.com/7Ybt5NCv

Answer 1

在分析了我使用线程的所有部分之后，结果发现我错过了关闭 aExecutor这对垃圾收集不利。

ExecutorService executor = Executors.newFixedThreadPool(2);
// ...
executor.shutdown()