Looks like you need to use a different MessageFormatter class, since it was renamed in 0.9. Instead use something like "kafka.coordinator.GroupMetadataManager\$OffsetsMessageFormatter".
-Jason On Wed, Dec 2, 2015 at 10:57 AM, Dhyan Muralidharan < d.muralidha...@yottaa.com> wrote: > I have this same problem . Can someone help ? > > --Dhyan > > On Wed, Nov 25, 2015 at 3:31 PM, Marina <ppi...@yahoo.com.invalid> wrote: > > > Hello, > > > > I'm trying to find out which offsets my current High-Level consumers are > > working off. I use Kafka 0.8.2.1, with **no** "offset.storage" set in the > > server.properties of Kafka - which, I think, means that offsets are > stored > > in Kafka. (I also verified that no offsets are stored in Zookeeper by > > checking this path in the Zk shell: > > > **/consumers/<consumer_group_name>/offsets/<topic_name>/<partition_number>** > > ) > > > > I tried to listen to the **__consumer_offsets** topic to see which > > consumer saves what value of offsets, but it did not work... > > > > I tried the following: > > > > created a config file for console consumer as following: > > > > > > => more kafka_offset_consumer.config > > > > exclude.internal.topics=false` > > > > and tried to versions of the console consumer scripts: > > > > #1: > > bin/kafka-console-consumer.sh --consumer.config > > kafka_offset_consumer.config --topic __consumer_offsets --zookeeper > > localhost:2181 > > > > #2 > > ./bin/kafka-simple-consumer-shell.sh --topic __consumer_offsets > > --partition 0 --broker-list localhost:9092 --formatter > > "kafka.server.OffsetManager\$OffsetsMessageFormatter" --consumer.config > > kafka_offset_consumer.config > > > > > > Neither worked - it just sits there but does not print anything, even > > though the consumers are actively consuming/saving offsets. > > > > Am I missing some other configuration/properties ? > > > > thanks! > > > > Marina > > > > I have also posted this question on StackOverflow: > > > > > > > http://stackoverflow.com/questions/33925866/kafka-0-8-2-1-how-to-read-from-consumer-offsets-topic > > >
