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In this case increasing the Ulimit of number of processes to the Druid user will fix this issue.

This Article explains more the issue and best way to fix such issue.

Exception stack.

2018-04-02T23:41:56,827 ERROR [main] io.druid.cli.CliBroker-Errorwhen starting up.Failing.java.lang.OutOfMemoryError: unable to create newnative thread at java.lang.Thread.start0(NativeMethod)~[?:1.8.0_40]at java.lang.Thread.start(Thread.java:714)~[?:1.8.0_40]at java.util.concurrent.ThreadPoolExecutor.addWorker(ThreadPoolExecutor.java:950)~[?:1.8.0_40]at java.util.concurrent.ThreadPoolExecutor.execute(ThreadPoolExecutor.java:1368)~[?:1.8.0_40]at org.jboss.netty.util.internal.DeadLockProofWorker.start(DeadLockProofWorker.java:38)~[netty-3.10.6.Final.jar:?]at org.jboss.netty.channel.socket.nio.AbstractNioSelector.openSelector(AbstractNioSelector.java:368)~[netty-3.10.6.Final.jar:?]at org.jboss.netty.channel.socket.nio.AbstractNioSelector.<init>(AbstractNioSelector.java:100)~[netty-3.10.6.Final.jar:?]at org.jboss.netty.channel.socket.nio.AbstractNioWorker.<init>(AbstractNioWorker.java:52)~[netty-3.10.6.Final.jar:?]at org.jboss.netty.channel.socket.nio.NioWorker.<init>(NioWorker.java:45)~[netty-3.10.6.Final.jar:?]at org.jboss.netty.channel.socket.nio.NioWorkerPool.newWorker(NioWorkerPool.java:44)~[netty-3.10.6.Final.jar:?]at org.jboss.netty.channel.socket.nio.NioWorkerPool.newWorker(NioWorkerPool.java:28)
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Last update:
‎04-03-2018 11:30 PM
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