If you pipe your java program to kafkacat then the java program's stdout (output) will be directed to kafkacat's stdin (input).
java program | kafkacat 2015-01-20 22:48 GMT+01:00 Su She <suhsheka...@gmail.com>: > Thanks Magnus, > > One clarification...If I have a java program outputting messages, that is > stdout, can the producer use stdout or only stdin? > > Thanks, > > Su > > On Tue, Jan 20, 2015 at 1:10 PM, Magnus Edenhill <mag...@edenhill.se> > wrote: > > > Hi Su, > > > > It is as simple as piping to it: > > some_program_outputting_the_stuff | kafkacat -b mybroker -t mytopic > > > > That will produce one kafka message to topic 'mytopic' for each line of > > input. > > See kafkacat -h for the full range of options (e.g., delimiter, specific > > partition, etc). > > > > Hope that helps, > > Magnus > > > > 2015-01-20 21:58 GMT+01:00 Su She <suhsheka...@gmail.com>: > > > > > Ahh yea that is what I was looking for, thank you! I only need it on > the > > > producer side, are there any other options for that? > > > > > > Thanks! > > > > > > On Tue, Jan 20, 2015 at 12:46 PM, Joe Stein <joe.st...@stealth.ly> > > wrote: > > > > > > > This is a stdin/stdout producer/consumer that works great for (what I > > > > think) you are trying to-do https://github.com/edenhill/kafkacat > > > > > > > > /******************************************* > > > > Joe Stein > > > > Founder, Principal Consultant > > > > Big Data Open Source Security LLC > > > > http://www.stealth.ly > > > > Twitter: @allthingshadoop <http://www.twitter.com/allthingshadoop> > > > > ********************************************/ > > > > > > > > On Tue, Jan 20, 2015 at 3:44 PM, Su She <suhsheka...@gmail.com> > wrote: > > > > > > > > > Hello Everyone, > > > > > > > > > > Sorry for asking multiple questions, but I am currently trying > > another > > > > > approach to run a kafka producer. > > > > > > > > > > 1) I started the kafka console producer as mentioned here in the > > > > background > > > > > (just added a & to the end of the producer script) : > > > > > http://kafka.apache.org/documentation.html#introduction > > > > > > > > > > 2) I then ran a Java script that publishes messages to the console, > > > like > > > > > Hello World, etc, but the messages did not get published (I know > the > > > > > connection was set up as if I manually typed in messages, I was > able > > to > > > > see > > > > > them in my consumer). > > > > > > > > > > 3) Is this set up possible? > > > > > > > > > > Thanks! > > > > > > > > > > -Su > > > > > > > > > > > > > > >
