hi, we are experiencing an issue in our production environment when we publish about 10k small messages. I see 9 BLOCKED threads in the thread dump:
priority:10 - threadId:0x00007f34b0070800 - nativeId:0x19c20 - nativeId (decimal):105504 - state:BLOCKED stackTrace: java.lang.Thread.State: BLOCKED (on object monitor) at org.apache.activemq.broker.region.Topic.doMessageSend(Topic.java:423) - waiting to lock <0x000000076c328620> (a org.apache.activemq.broker.region.Topic) at org.apache.activemq.broker.region.Topic.send(Topic.java:404) at org.apache.activemq.broker.region.AbstractRegion.send(AbstractRegion.java:365) at org.apache.activemq.broker.region.RegionBroker.send(RegionBroker.java:523) at org.apache.activemq.broker.BrokerFilter.send(BrokerFilter.java:129) at org.apache.activemq.broker.CompositeDestinationBroker.send(CompositeDestinationBroker.java:96) at org.apache.activemq.broker.TransactionBroker.send(TransactionBroker.java:227) at org.apache.activemq.broker.BrokerFilter.send(BrokerFilter.java:129) at org.apache.activemq.broker.MutableBrokerFilter.send(MutableBrokerFilter.java:135) at org.apache.activemq.broker.TransportConnection.processMessage(TransportConnection.java:458) at org.apache.activemq.command.ActiveMQMessage.visit(ActiveMQMessage.java:681) at org.apache.activemq.broker.TransportConnection.service(TransportConnection.java:306) at org.apache.activemq.broker.TransportConnection$1.onCommand(TransportConnection.java:179) at org.apache.activemq.transport.TransportFilter.onCommand(TransportFilter.java:69) at org.apache.activemq.transport.WireFormatNegotiator.onCommand(WireFormatNegotiator.java:113) at org.apache.activemq.transport.InactivityMonitor.onCommand(InactivityMonitor.java:227) - locked <0x00000007214c0ec8> (a org.apache.activemq.transport.InactivityMonitor$1) at org.apache.activemq.transport.TransportSupport.doConsume(TransportSupport.java:83) at org.apache.activemq.transport.tcp.TcpTransport.doRun(TcpTransport.java:220) at org.apache.activemq.transport.tcp.TcpTransport.run(TcpTransport.java:202) at java.lang.Thread.run(Thread.java:745) Locked ownable synchronizers: - None Any ideas how we can tune our ActiveMQ settings to address this? NabbleThreadDump.txt <http://activemq.2283324.n4.nabble.com/file/t379693/NabbleThreadDump.txt> NabbleActiveMQ.txt <http://activemq.2283324.n4.nabble.com/file/t379693/NabbleActiveMQ.txt> Attached is our full thread dump and activemq.xml. Thanks in advance! -- Sent from: http://activemq.2283324.n4.nabble.com/ActiveMQ-User-f2341805.html
