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From "Simon-Pierre LeBel (JIRA)" <j...@apache.org>
Subject [jira] [Created] (AMQ-3286) ActiveMQ Connection Dispatcher thread
Date Tue, 19 Apr 2011 12:08:05 GMT
ActiveMQ Connection Dispatcher thread
-------------------------------------

                 Key: AMQ-3286
                 URL: https://issues.apache.org/jira/browse/AMQ-3286
             Project: ActiveMQ
          Issue Type: Bug
    Affects Versions: 5.3.2, 5.3.0
         Environment: == Java ==
java version "1.6.0_20"
Java(TM) SE Runtime Environment (build 1.6.0_20-b02)
Java HotSpot(TM) 64-Bit Server VM (build 16.3-b01, mixed mode)

== ActiveMQ ==
- Versions: 5.3.0 and 5.3.2
- Pure Master/Slave
- Openwire enabled
- FlowControl enabled
- KahaDB
            Reporter: Simon-Pierre LeBel


I'm having some issues with ActiveMQ Connection Dispatcher threads. Whenever I get an InactivityIOException
the thread goes into the Waiting state and a new thread is started.

== activemq.log ==
2011-04-18 10:15:31,244 | ERROR | Could not accept connection : org.apache.activemq.transport.InactivityIOException:
Channel was inactive for too long: /127.0.0.1:35401 | org.apache.activemq.broker.TransportConnector
| ActiveMQ Task

== jstack ==
"ActiveMQ Connection Dispatcher: /127.0.0.1:35401" daemon prio=10
tid=0x00007f10e440f800 nid=0x63e9 in Object.wait() [0x00007f10ce578000]
   java.lang.Thread.State: WAITING (on object monitor)
        at java.lang.Object.wait(Native Method)
        at java.lang.Object.wait(Object.java:485)
        at
org.apache.activemq.thread.DedicatedTaskRunner.runTask(DedicatedTaskRunner.java:105)
        - locked <0x00007f113bbd4618> (a java.lang.Object)
        at
org.apache.activemq.thread.DedicatedTaskRunner$1.run(DedicatedTaskRunner.java:36)

After running ActiveMQ for a couple of weeks there are more than 3k waiting threads doing
nothing but wasting memory. If i disable the inactivity monitor the problem goes away (wireFormat.maxInactivityDuration=0).

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