Not sure if
the thread dump was able to help at all. I did find something
interesting. We tried the Sun 1.7 JVM and CPU utilization went down to
pretty much nothing running what would be a typical load on the server
we are testing. With Jetty 7.2 on the 1.6 JVM, CPU utilization still
runs higher but doesn't totally kill the server. It does run close to
100% most of the time with less than 50 users using the server. Of
course, the 1.7 JVM is not helpful right now. Is there any way to
figure out what JVM bug we may be experiencing with Jetty 7.1.6/7.2?
Tony
Jan Bartel wrote:
Tony,
Can you post a thread dump during the 100% cpu?
Also, any settings from jetty.xml that you have
customized.
thanks,
Jan
On 23/09/10 00:54, Tony Thompson wrote:
I am attempting to update Jetty from 7.1.4 to
7.1.6. I have a Linux
server where CPU runs at 100% with 7.1.6 but works fine with 7.1.4. I
am
using openSUSE 11.2 with the Sun JVM version 1.6.0_21. It seems like
the
changes made for this bug ticket:
http://jira.codehaus.org/browse/JETTY-1249
may have affected some of the JVM bug workarounds. I am using Java
VisualVM with the Sampler plugin and it is showing the
org.eclipse.jetty.util.BlockingArrayQueue.poll() method is consuming
the
CPU. Does this seem reasonable or has another issue potentially crept
in?
If there is any additional I can provide, please let me know.
Tony
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