Hi:
I have a difficult situation here, and I am not able to comprehend this
issue.
I have the following error, and I understand that it has reached max.
connections, and I need to change the value for max. connections.
| ERROR | Could not accept connection : {} |
org.apache.activemq.broker.TransportConnector | ActiveMQ Transport Server
Thread Handler:
tcp://0.0.0.0:61616?maximumConnections=1000&wireFormat.maxFrameSize=104857600
org.apache.activemq.transport.tcp.ExceededMaximumConnectionsException:
Exceeded the maximum number of allowed client connections. See the
'maximumConnections' property on the TCP transport configuration URI in the
ActiveMQ configuration file (e.g., activemq.xml)
at
org.apache.activemq.transport.tcp.TcpTransportServer.doHandleSocket(TcpTransportServer.java:567)[activemq-client-5.15.4.jar:5.15.4]
at
org.apache.activemq.transport.tcp.TcpTransportServer.handleSocket(TcpTransportServer.java:556)[activemq-client-5.15.4.jar:5.15.4]
at
org.apache.activemq.transport.tcp.TcpTransportServer$1.run(TcpTransportServer.java:482)[activemq-client-5.15.4.jar:5.15.4]
at java.lang.Thread.run(Unknown Source)[:1.8.0_172]
2019-06-10 21:22:03,075 | ERROR | Could not accept connection : {} |
org.apache.activemq.broker.TransportConnector | ActiveMQ Transport Server
Thread Handler:
tcp://0.0.0.0:61616?maximumConnections=1000&wireFormat.maxFrameSize=104857600
Now, there are two scenarios from here on.
One is my development environment, where I tried deploying my broker using
docker, or simply running an activemq broker from the downloaded
distribution (on Windows), and the version is : 5.14.3. This works
completely fine, and I see something like below, in the ActiveMQ console:
Name Remote Address Active Slow
ID:MDK-10884-1559899975517-0:2 tcp://127.0.0.1:10942 true false
ID:MDK-10884-1559899975517-2:8 tcp://127.0.0.1:12448 true false
Clicking on one of those two connections, I can see all my consumer
sessions.
I have the same broker configuration in my staging environment (which is
Windows 2012 R2), and broker version is 5.15.4. I am bound to that OS for
the time being.
>From the ActiveMQ web console, I see hundreds of connections. The same is
from netstat as well.
On both cases, I am using this broker from Apache Karaf (which hosts camel
routes bundles). The bundles and karaf instances are same on both
environments. I have used pax-jms and also configured connection pooling.
But, neither of these settings seem to have an effect in the overloaded
number of connections.
I think, I have encountered this issue, after I switched to pax-jms.
Any pointers on this would be very helpful.
Regards,
Cooshal.
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