Milind, You hit a couple of bugs in ConsoleProducer.
1. The code does the following to set batch size props.put("batch.size", batchSize) Instead, it should do props.put("batch.size", batchSize.toString) 2. It sets the wrong property name for timeout. Instead of doing props.put("queue.enqueueTimeout.ms", sendTimeout.toString) it should do props.put("queue.time", sendTimeout.toString) Could you file a jira for that? Thanks, Jun On Sat, Feb 18, 2012 at 11:35 PM, Milind Parikh <milindpar...@gmail.com>wrote: > I am experimenting with Kafka to see if it can serve as a event buffer for > Countandra (www.countandra.org) and beyond that, into cascading counters. > I > have setup Kafka on a local server Ubuntu 10.04, openjdk1.6 with default > installation of 0.7. > > *1. While the default console-producer, console-consumer paradigm works > great, when I try modiying the batch size > * > bin/kafka-console-producer.sh --batch-size 300 --zookeeper localhost:2181 > --topic test1 > > it gives me a > > Exception in thread "main" java.lang.NumberFormatException: null > at java.lang.Integer.parseInt(Integer.java:443) > at java.lang.Integer.parseInt(Integer.java:514) > at > scala.collection.immutable.StringLike$class.toInt(StringLike.scala:207) > at scala.collection.immutable.StringOps.toInt(StringOps.scala:31) > at kafka.utils.Utils$.getIntInRange(Utils.scala:189) > at kafka.utils.Utils$.getInt(Utils.scala:174) > at > > kafka.producer.async.AsyncProducerConfigShared$class.$init$(AsyncProducerConfig.scala:45) > at kafka.producer.ProducerConfig.<init>(ProducerConfig.scala:25) > at kafka.producer.ConsoleProducer$.main(ConsoleProducer.scala:108) > at kafka.producer.ConsoleProducer.main(ConsoleProducer.scala) > > I have looked at the code and can't figure out what's wrong > > *2. When I do bin/kafka-console-producer.sh --timeout 30000 --zookeeper > localhost:2181 --topic test1 * > > I would think that console-producer would wait for 30s if the batch size > (default 200) is not full. It doesn't. It takes the same time without the > timeout parameter (default 1000) and dumps whatever the batch size. > > I am probably missing something here. Any pointers would be appreciated. > > Thanks > Milind >