kafka/examples
Ismael Juma b4aae03423 KAFKA-2983: Remove Scala consumers and related code (#5230)
- Removed Scala consumers (`SimpleConsumer` and `ZooKeeperConsumerConnector`)
and their tests.
- Removed Scala request/response/message classes.
- Removed any mention of new consumer or new producer in the code
with the exception of MirrorMaker where the new.consumer option was
never deprecated so we have to keep it for now. The non-code
documentation has not been updated either, that will be done
separately.
- Removed a number of tools that only made sense in the context
of the Scala consumers (see upgrade notes).
- Updated some tools that worked with both Scala and Java consumers
so that they only support the latter (see upgrade notes).
- Removed `BaseConsumer` and related classes apart from `BaseRecord`
which is used in `MirrorMakerMessageHandler`. The latter is a pluggable
interface so effectively public API.
- Removed `ZkUtils` methods that were only used by the old consumers.
- Removed `ZkUtils.registerBroker` and `ZKCheckedEphemeral` since
the broker now uses the methods in `KafkaZkClient` and no-one else
should be using that method.
- Updated system tests so that they don't use the Scala consumers except
for multi-version tests.
- Updated LogDirFailureTest so that the consumer offsets topic would
continue to be available after all the failures. This was necessary for it
to work with the Java consumer.
- Some multi-version system tests had not been updated to include
recently released Kafka versions, fixed it.
- Updated findBugs and checkstyle configs not to refer to deleted
classes and packages.

Reviewers: Dong Lin <lindong28@gmail.com>, Manikumar Reddy <manikumar.reddy@gmail.com>
2018-06-19 07:33:42 -07:00
..
bin kafka-1700; examples directory - README and shell scripts are out of date; patched by Geoffrey Anderson; reviewed by Jun Rao 2014-10-23 16:12:54 -07:00
src/main/java/kafka/examples KAFKA-2983: Remove Scala consumers and related code (#5230) 2018-06-19 07:33:42 -07:00
README kafka-1982; change kafka.examples.Producer to use the new java producer; patched by Ashish Singh; reviewed by Gwen Shapira, Mayuresh Gharat and Jun Rao 2015-04-19 07:46:58 -07:00

README

This directory contains examples of client code that uses kafka.

To run the demo: 

   1. Start Zookeeper and the Kafka server
   2. For simple consumer demo, `run bin/java-simple-consumer-demo.sh`
   3. For unlimited sync-producer-consumer run, `run bin/java-producer-consumer-demo.sh sync`
   4. For unlimited async-producer-consumer run, `run bin/java-producer-consumer-demo.sh`