Hi there,

I'm using AMQ 5.10.0 with failover transport and I'm getting following
exception:-

Have following setting:-
ACTIVEMQ_OPTS="-Xmx1G -Dorg.apache.activemq.UseDedicatedTaskRunner=false

Exception in thread "ActiveMQ Broker[localhost] Scheduler"
java.lang.OutOfMemoryError: unable to create new native thread
        at java.lang.Thread.start0(Native Method)
        at java.lang.Thread.start(Thread.java:693)
        at
java.util.concurrent.ThreadPoolExecutor.addWorker(ThreadPoolExecutor.java:949)
        at
java.util.concurrent.ThreadPoolExecutor.execute(ThreadPoolExecutor.java:1371)
        at
org.apache.activemq.thread.PooledTaskRunner.wakeup(PooledTaskRunner.java:83)
        at
org.apache.activemq.broker.region.Queue.asyncWakeup(Queue.java:1891)
        at
org.apache.activemq.broker.region.Queue.expireMessages(Queue.java:985)
        at
org.apache.activemq.broker.region.Queue.access$100(Queue.java:104)
        at org.apache.activemq.broker.region.Queue$2.run(Queue.java:148)
        at
org.apache.activemq.thread.SchedulerTimerTask.run(SchedulerTimerTask.java:33)
        at java.util.TimerThread.mainLoop(Timer.java:555)
        at java.util.TimerThread.run(Timer.java:505)
ERROR | Could not accept connection : java.lang.Exception:
java.lang.OutOfMemoryError: unable to create new native thread
ERROR | Could not accept connection : java.lang.Exception:
java.lang.OutOfMemoryError: unable to create new native thread
ERROR | Could not accept connection : java.lang.Exception:
java.lang.OutOfMemoryError: unable to create new native thread
Exception in thread "ActiveMQ InactivityMonitor WriteCheckTimer"
java.lang.OutOfMemoryError: unable to create new native thread
        at java.lang.Thread.start0(Native Method)
        at java.lang.Thread.start(Thread.java:693)
        at
java.util.concurrent.ThreadPoolExecutor.addWorker(ThreadPoolExecutor.java:949)
        at
java.util.concurrent.ThreadPoolExecutor.execute(ThreadPoolExecutor.java:1371)
        at
org.apache.activemq.transport.AbstractInactivityMonitor.writeCheck(AbstractInactivityMonitor.java:158)
        at
org.apache.activemq.transport.AbstractInactivityMonitor$2.run(AbstractInactivityMonitor.java:122)
        at
org.apache.activemq.thread.SchedulerTimerTask.run(SchedulerTimerTask.java:33)
        at java.util.TimerThread.mainLoop(Timer.java:555)
        at java.util.TimerThread.run(Timer.java:505)
Exception in thread "ActiveMQ BrokerService[localhost] Task-15"
java.lang.OutOfMemoryError: unable to create new native thread
        at java.lang.Thread.start0(Native Method)
        at java.lang.Thread.start(Thread.java:693)
        at
java.util.concurrent.ThreadPoolExecutor.addWorker(ThreadPoolExecutor.java:949)
        at
java.util.concurrent.ThreadPoolExecutor.processWorkerExit(ThreadPoolExecutor.java:1017)
        at
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1163)
        at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
        at java.lang.Thread.run(Thread.java:724)
Exception in thread "ActiveMQ BrokerService[localhost] Task-18"
java.lang.OutOfMemoryError: unable to create new native thread
        at java.lang.Thread.start0(Native Method)
        at java.lang.Thread.start(Thread.java:693)
        at
java.util.concurrent.ThreadPoolExecutor.addWorker(ThreadPoolExecutor.java:949)
        at
java.util.concurrent.ThreadPoolExecutor.processWorkerExit(ThreadPoolExecutor.java:1017)
        at
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1163)
        at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
        at java.lang.Thread.run(Thread.java:724)
ERROR | Could not accept connection : java.lang.Exception:
java.lang.OutOfMemoryError: unable to create new native thread
ERROR | Could not accept connection : java.lang.Exception:
java.lang.OutOfMemoryError: unable to create new native thread
                                                                                
                                          



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