Monika changes to Kafka are tracked in JIRA and you will see this almost always in the commit log (so you can find the file, review the history, do a git blame and often (if not always) see the JIRA ticket number that caused the change... go to JIRA and see why).
e.g: the answer to your first question = https://issues.apache.org/jira/browse/KAFKA-188 for #2 the JMX is set in kafka-run-class.sh and removed from the other in a cleanup commit since it was redundant (and is defaulted in the code). not sure I understand your question or what you mean by "Doubt" /******************************************* Joe Stein Founder, Principal Consultant Big Data Open Source Security LLC http://www.stealth.ly Twitter: @allthingshadoop <http://www.twitter.com/allthingshadoop> ********************************************/ On Wed, Jan 8, 2014 at 5:18 AM, Monika Garg <gargmon...@gmail.com> wrote: > Hi, > > I have two doubts for changes in different versions of Kafka available: > > *Doubt1:* > > I am using Kafka from the version kafka-0.7.1-incubating-src.tgz. > The latest stable version is kafka_2.8.0-0.8.0.tar.gz. > > But there is propertyName difference in config/server.properties file of > different versions. > > kafka-0.7.1-incubating-src.tgz and kafka-0.7.2-incubating-src.tgz have > below property(ies) : > > brokerid = 0 > log.dir = /tmp/kafka-logs > > But kafka-0.8.0-beta1-src.tgz have as below : > broker.id = 0 > log.dir = /tmp/kafka-logs > > But kafka_2.8.0-0.8.0.tar.gz have as below: > > broker.id = 0 > log.dirs = /tmp/kafka-logs > > So May I know why the difference in property-Name of different versions(One > thing I understood that from kafka-0.8.0-beta1 version,Kafka is supporting > multiple log-directory,so that might be the reason for change of log.dir to > log.dirs). > > > > > > *Doubt2:* > /bin/kafka-server-start.sh file export JMX_PORT till version > kafka-0.8.0-beta1-src.tgz,but > in stable latest version it is not exporting JMX_PORT.So why this has been > done. > > > > -- > *Moniii* >