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Ray Chiang commented on KAFKA-6918: ----------------------------------- Using Ubuntu 16.0.4 and this version of IBM Java: {code:java} java version "1.8.0_171" Java(TM) SE Runtime Environment (build 8.0.5.17 - pxa6480sr5fp17-20180627_01(SR5 FP17)) IBM J9 VM (build 2.9, JRE 1.8.0 Linux amd64-64-Bit Compressed References 20180626_390413 (JIT enabled, AOT enabled) OpenJ9 - 5cdc604 OMR - a24bc01 IBM - 21870d6) JCL - 20180619_01 based on Oracle jdk8u171-b11{code} I'm seeing the above error in Kafka 1.0.2 and 1.1.0, but I'm getting a broker startup without that error in 1.1.1. This matches what I see in Git, since I see this fix in both the 1.1 branch and the 1.1.1-rc1 tag, but not in the 1.1.0 tag: {code:java} commit 091f96ffb0905251481444cfc14435c67c4e3608 Author: Ismael Juma <ism...@juma.me.uk> Date: Fri May 25 07:00:56 2018 -0700 MINOR: Use reflection for signal handler and do not enable it for IBM JDK (#5047){code} I think this should be good to close. > Kafka server fails to start with IBM JAVA > ----------------------------------------- > > Key: KAFKA-6918 > URL: https://issues.apache.org/jira/browse/KAFKA-6918 > Project: Kafka > Issue Type: Bug > Affects Versions: 1.0.0 > Reporter: Nayana Thorat > Priority: Critical > > Kafka server start fails with below error: > bin/kafka-server-start.sh -daemon config/server.properties > ERROR: > (kafka.server.KafkaConfig) > FATAL (kafka.Kafka$) > java.lang.IllegalArgumentException: Signal already used by VM: INT > at > com.ibm.misc.SignalDispatcher.registerSignal(SignalDispatcher.java:127) > at sun.misc.Signal.handle(Signal.java:184) > at kafka.Kafka$.registerHandler$1(Kafka.scala:67) > at kafka.Kafka$.registerLoggingSignalHandler(Kafka.scala:74) > at kafka.Kafka$.main(Kafka.scala:85) > at kafka.Kafka.main(Kafka.scala) > > Tried with binaries and well as built Apache Kafka(v1.0.0) from source. > Installed IBM SDK on Ubuntu 16.04. > IBM java link: > wget > http://public.dhe.ibm.com/ibmdl/export/pub/systems/cloud/runtimes/java/8.0.5.10/linux/x86_64/ibm-java-sdk-8.0-5.10-x86_64-archive.bin > > -- This message was sent by Atlassian JIRA (v7.6.3#76005)