Hi Frizz, I have absolutely the same symptoms described in http://activemq.2283324.n4.nabble.com/Excessive-number-of-connections-by-failover-transport-td4735849.html
Also using randomize=false&priorityBackup=true. After some time of work, client spams the server with connections and after short time server becomes out of resources. Version of client and server is 5.14.5. @activemq community: any ideas, workarounds? Regards, Andrei. > -----Original Message----- > From: Frizz [mailto:frizzthe...@googlemail.com] > Sent: Montag, 29. Januar 2018 20:12 > To: users@activemq.apache.org > Subject: Thousands of "Transport Connection failed" exceptions > > My clients connect to AMQ with this connection string: > (tcp://amq1:61616,tcp://amq2:61616)?randomize=false&priorityBackup=true > > It works - for some time. But sooner or later my AMQ server becomes > unresponsive because the host it runs on runs out of resources (threads). > The AMQ server basically kills it. > > activemq.log shows lots of entries like this: > ... > 2018-01-29 16:50:50,800 | WARN | Transport Connection to: tcp:// > 172.13.2.145:45958 failed: java.net.SocketException: Connection reset | > org.apache.activemq.broker.TransportConnection.Transport | ActiveMQ > Transport: tcp:///172.13.2.145:45958@61616 ... > 2018-01-29 16:50:52,894 | WARN | Failed to register MBean > org.apache.activemq:type=Broker,brokerName=amq1,connector=clientConnect > ors,connectorName=default,connectionViewType=clientId,connectionName=ID > _e325fbc8d9c2-41743-1517236130397-0_22 > ... > ... > > And then I get spammed with thousands of lines like this: > > 2018-01-29 18:14:40,374 | WARN | Transport Connection to: tcp:// > 172.13.2.150:51089 failed: java.io.EOFException | > org.apache.activemq.broker.TransportConnection.Transport | ActiveMQ > Transport: tcp:///172.13.2.150:51089@61616 > 2018-01-29 18:14:40,455 | WARN | Transport Connection to: tcp:// > 172.13.2.150:51091 failed: java.io.EOFException | > org.apache.activemq.broker.TransportConnection.Transport | ActiveMQ > Transport: tcp:///172.13.2.150:51091@61616 > 2018-01-29 18:14:40,537 | WARN | Transport Connection to: tcp:// > 172.13.2.150:51093 failed: java.io.EOFException | > org.apache.activemq.broker.TransportConnection.Transport | ActiveMQ > Transport: tcp:///172.13.2.150:51093@61616 > 2018-01-29 18:14:40,617 | WARN | Transport Connection to: tcp:// > 172.13.2.150:51095 failed: java.io.EOFException | > org.apache.activemq.broker.TransportConnection.Transport | ActiveMQ > Transport: tcp:///172.13.2.150:51095@61616 > 2018-01-29 18:14:40,698 | WARN | Transport Connection to: tcp:// > 172.13.2.150:51097 failed: java.io.EOFException | > org.apache.activemq.broker.TransportConnection.Transport | ActiveMQ > Transport: tcp:///172.13.2.150:51097@61616 > 2018-01-29 18:14:40,780 | WARN | Transport Connection to: tcp:// > 172.13.2.150:51099 failed: java.io.EOFException | > org.apache.activemq.broker.TransportConnection.Transport | ActiveMQ > Transport: tcp:///172.13.2.150:51099@61616 > 2018-01-29 18:14:40,860 | WARN | Transport Connection to: tcp:// > 172.13.2.150:51101 failed: > ... > > Why is the AMQ server trying to connect to every single port on one of the > client machines?