This is not a bug. The java process spawned by kafka-topics.sh is trying to bind to 9998 upon start. The java process spawned by kafka-server-start.sh already owns that port. It's doing this because both of these scripts use kafka-run-class.sh and that is where you defined your 'export JMX_PORT'.
Put your export statement into kafka-server-start.sh instead and run kafka-topics.sh using a separate terminal or user account. Also, google search "linux environment variables." You could also just run kafka-topics.sh from a separate host, such as your workstation, so long as it can see zookeeper:2181. On Mon, Sep 14, 2015 at 3:52 PM, allen chan <allen.michael.c...@gmail.com> wrote: > After completely disabling JMX settings, i was able to create topics. Seems > like there is an issue with using JMX with the product. Should i create > bug? > > On Sun, Sep 13, 2015 at 9:07 PM, allen chan <allen.michael.c...@gmail.com> > wrote: > > > Changing the port to 9998 did not help. Still the same error occurred > > > > On Sat, Sep 12, 2015 at 12:27 AM, Foo Lim <foo....@vungle.com> wrote: > > > >> Try throwing > >> > >> JMX_PORT=9998 > >> > >> In front of the command. Anything other than 9994 > >> > >> Foo > >> > >> On Friday, September 11, 2015, allen chan <allen.michael.c...@gmail.com > > > >> wrote: > >> > >> > Hi all, > >> > > >> > First time testing kafka with brand new cluster. > >> > > >> > Running into an issue that i do not understand. > >> > > >> > Server started up fine but I get error when trying to create a topic. > >> > > >> > *[achan@server1 ~]$ ps -ef | grep -i kafka* > >> > *root 6507 1 0 15:42 ? 00:00:00 sudo > >> > /opt/kafka_2.10-0.8.2.1/bin/kafka-server-start.sh > >> > /opt/kafka_2.10-0.8.2.1/config/server.properties* > >> > *root 6508 6507 0 15:42 ? 00:00:36 java -Xmx1G -Xms1G > >> -server > >> > -XX:+UseParNewGC -XX:+UseConcMarkSweepGC -XX:+CMSClassUnloadingEnabled > >> > -XX:+CMSScavengeBeforeRemark -XX:+DisableExplicitGC > >> > -Djava.awt.headless=true > >> > -Xloggc:/opt/kafka_2.10-0.8.2.1/bin/../logs/kafkaServer-gc.log > >> -verbose:gc > >> > -XX:+PrintGCDetails -XX:+PrintGCDateStamps -XX:+PrintGCTimeStamps > >> > -Dcom.sun.management.jmxremote -Djava.rmi.server.hostname=server1 > >> > -Dcom.sun.management.jmxremote.authenticate=false > >> > -Dcom.sun.management.jmxremote.ssl=false > >> > -Dcom.sun.management.jmxremote.port=9994 > >> > -Dkafka.logs.dir=/opt/kafka_2.10-0.8.2.1/bin/../logs > >> > > >> > > >> > -Dlog4j.configuration=file:/opt/kafka_2.10-0.8.2.1/bin/../config/log4j.properties > >> > -cp > >> > > >> > > >> > :/opt/kafka_2.10-0.8.2.1/bin/../core/build/dependant-libs-2.10.4*/*.jar:/opt/kafka_2.10-0.8.2.1/bin/../examples/build/libs//kafka-examples*.jar:/opt/kafka_2.10-0.8.2.1/bin/../contrib/hadoop-consumer/build/libs//kafka-hadoop-consumer*.jar:/opt/kafka_2.10-0.8.2.1/bin/../contrib/hadoop-producer/build/libs//kafka-hadoop-producer*.jar:/opt/kafka_2.10-0.8.2.1/bin/../clients/build/libs/kafka-clients*.jar:/opt/kafka_2.10-0.8.2.1/bin/../libs/jopt-simple-3.2.jar:/opt/kafka_2.10-0.8.2.1/bin/../libs/kafka_2.10-0.8.2.1.jar:/opt/kafka_2.10-0.8.2.1/bin/../libs/kafka_2.10-0.8.2.1-javadoc.jar:/opt/kafka_2.10-0.8.2.1/bin/../libs/kafka_2.10-0.8.2.1-scaladoc.jar:/opt/kafka_2.10-0.8.2.1/bin/../libs/kafka_2.10-0.8.2.1-sources.jar:/opt/kafka_2.10-0.8.2.1/bin/../libs/kafka_2.10-0.8.2.1-test.jar:/opt/kafka_2.10-0.8.2.1/bin/../libs/kafka-clients-0.8.2.1.jar:/opt/kafka_2.10-0.8.2.1/bin/../libs/log4j-1.2.16.jar:/opt/kafka_2.10-0.8.2.1/bin/../libs/lz4-1.2.0.jar:/opt/kafka_2.10-0.8.2.1/bin/../libs/metrics-core-2.2.0.jar:/opt/kafka_2.10-0.8.2.1/bin/../libs/scala-library-2.10.4.jar:/opt/kafka_2.10-0.8.2.1/bin/../libs/slf4j-api-1.7.6.jar:/opt/kafka_2.10-0.8.2.1/bin/../libs/slf4j-log4j12-1.6.1.jar:/opt/kafka_2.10-0.8.2.1/bin/../libs/snappy-java-1.1.1.6.jar:/opt/kafka_2.10-0.8.2.1/bin/../libs/zkclient-0.3.jar:/opt/kafka_2.10-0.8.2.1/bin/../libs/zookeeper-3.4.6.jar:/opt/kafka_2.10-0.8.2.1/bin/../core/build/libs/kafka_2.10*.jar > >> > kafka.Kafka /opt/kafka_2.10-0.8.2.1/config/server.properties* > >> > > >> > > >> > *[achan@server1 ~]$ sudo /opt/kafka_2.10-0.8.2.1/bin/kafka-topics.sh > >> > --create –zookeeper server1:2181 –partition 3 –replica 0 –topic > >> test.logs* > >> > *[sudo] password for achan:* > >> > *Error: Exception thrown by the agent : > java.rmi.server.ExportException: > >> > Port already in use: 9994; nested exception is:* > >> > * java.net.BindException: Address already in use* > >> > > >> > I have pretty much the manila kakfa-run-class.sh except i added the > >> > following > >> > *export JMX_PORT=9994* (near the top of the file) > >> > and > >> > *Djava.rmi.server.hostname=sever1* (to the KAFKA_JMX_OPTS) > >> > > >> > JMX monitoring is working perfectly on 9994. > >> > > >> > Has anyone else run into this issue? > >> > > >> > > >> > Thanks > >> > -- > >> > Allen Michael Chan > >> > > >> > > > > > > > > -- > > Allen Michael Chan > > > > > > -- > Allen Michael Chan >
