Keith Wall created QPID-6683:
--------------------------------
Summary: Jetty thread seemingly spins if many HTTP ports are
defined on hosts with large numbers of core
Key: QPID-6683
URL: https://issues.apache.org/jira/browse/QPID-6683
Project: Qpid
Issue Type: Bug
Components: Java Broker
Affects Versions: 0.32
Reporter: Keith Wall
Fix For: qpid-java-6.0
If I configure many HTTP management ports on a box with a large number of cores
(80), I find that one of the two ports will be non-functional (produce a
timeout in the browser/blank page). Turning on Jetty logs reveals a Jetty WARN
during startup, during the attempt to configure the second port:
{noformat}
2015-08-07 10:30:21,963 WARN [Broker-Config] (o.e.j.s.AbstractConnector) -
insufficient threads configured for @0.0.0.0:8080
{noformat}
then evidence of a spinning Jetty thread once the connect
{noformat}
2015-08-07 11:35:32,737 DEBUG [HttpManagement-226 Selector2]
(o.e.j.u.t.QueuedThreadPool) - Dispatched
Idle-org.eclipse.jetty.io.nio.SelectorManager$SelectSet$1@37ca01b0 to stopped
HttpManagement{5<=0<=50/50,1000}
2015-08-07 11:35:32,737 DEBUG [HttpManagement-233 Selector9]
(o.e.j.u.t.QueuedThreadPool) - Dispatched
Idle-org.eclipse.jetty.io.nio.SelectorManager$SelectSet$1@2f34e66d to stopped
HttpManagement{5<=0<=50/50,1000}
2015-08-07 11:35:32,737 DEBUG [HttpManagement-228 Selector4]
(o.e.j.u.t.QueuedThreadPool) - Dispatched
Idle-org.eclipse.jetty.io.nio.SelectorManager$SelectSet$1@3a041651 to stopped
HttpManagement{5<=0<=50/50,1000}
2015-08-07 11:35:32,737 DEBUG [HttpManagement-229 Selector5]
(o.e.j.u.t.QueuedThreadPool) - Dispatched
Idle-org.eclipse.jetty.io.nio.SelectorManager$SelectSet$1@3a041651 to stopped
HttpManagement{5<=0<=50/50,1000}
2015-08-07 11:35:32,738 DEBUG [HttpManagement-230 Selector6]
(o.e.j.u.t.QueuedThreadPool) - Dispatched
Idle-org.eclipse.jetty.io.nio.SelectorManager$SelectSet$1@62553d98 to stopped
HttpManagement{5<=0<=50/50,1000}
2015-08-07 11:35:32,738 DEBUG [HttpManagement-225 Selector1]
(o.e.j.u.t.QueuedThreadPool) - Dispatched
Idle-org.eclipse.jetty.io.nio.SelectorManager$SelectSet$1@4a3ef897 to stopped
HttpManagement{5<=0<=50/50,1000}
2015-08-07 11:35:32,740 DEBUG [HttpManagement-232 Selector8]
(o.e.j.u.t.QueuedThreadPool) - Dispatched
Idle-org.eclipse.jetty.io.nio.SelectorManager$SelectSet$1@6c32a795 to stopped
HttpManagement{5<=0<=50/50,1000}
2015-08-07 11:35:32,742 DEBUG [HttpManagement-227 Selector3]
(o.e.j.u.t.QueuedThreadPool) - Dispatched
Idle-org.eclipse.jetty.io.nio.SelectorManager$SelectSet$1@71985eb1 to stopped
HttpManagement{5<=0<=50/50,1000}
2015-08-07 11:35:32,745 DEBUG [HttpManagement-231 Selector7]
(o.e.j.u.t.QueuedThreadPool) - Dispatched
Idle-org.eclipse.jetty.io.nio.SelectorManager$SelectSet$1@4a70f0ba to stopped
HttpManagement{5<=0<=50/50,1000}
{noformat}
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