Details
Minor Description
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.
Resolution from Jun
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)