Hi all,
I am getting the below message in producer.send() : SLF4J: Failed toString() invocation on an object of type [org.apache.kafka.common.Cluster] java.lang.NullPointerException at org.apache.kafka.common.PartitionInfo.toString(PartitionInfo.java:72) at java.lang.String.valueOf(String.java:2826) at java.lang.StringBuilder.append(StringBuilder.java:115) at java.util.AbstractCollection.toString(AbstractCollection.java:422) at java.lang.String.valueOf(String.java:2826) at java.lang.StringBuilder.append(StringBuilder.java:115) at org.apache.kafka.common.Cluster.toString(Cluster.java:171) at org.slf4j.helpers.MessageFormatter.safeObjectAppend(MessageFormatter.java:305) at org.slf4j.helpers.MessageFormatter.deeplyAppendParameter(MessageFormatter.java:277) at org.slf4j.helpers.MessageFormatter.arrayFormat(MessageFormatter.java:231) at org.slf4j.helpers.MessageFormatter.format(MessageFormatter.java:152) at org.slf4j.impl.Log4jLoggerAdapter.debug(Log4jLoggerAdapter.java:251) at org.apache.kafka.clients.producer.internals.Metadata.update(Metadata.java:141) at org.apache.kafka.clients.NetworkClient.handleMetadataResponse(NetworkClient.java:313) at org.apache.kafka.clients.NetworkClient.handleCompletedReceives(NetworkClient.java:298) at org.apache.kafka.clients.NetworkClient.poll(NetworkClient.java:199) at org.apache.kafka.clients.producer.internals.Sender.run(Sender.java:191) at org.apache.kafka.clients.producer.internals.Sender.run(Sender.java:122) at java.lang.Thread.run(Thread.java:662) Details: - Using org.apache.kafka.clients.producer.KafkaProducer, org.apache.kafka.clients.producer.ProducerRecord, org.apache.kafka.clients.producer.RecordMetadata - Doing an async send. Any idea of the root cause and the fix ? I can share my code if required. As per http://mail-archives.apache.org/mod_mbox/kafka-users/201412.mbox/%3CCAOG_4Qa9fKv28mSgN6hF9xdJrumc4X3qVrgDj6QiFZdAP==n...@mail.gmail.com%3E , this seems to be a bug. Not sure if this has been fixed. Regards, Saurav Datta Data Engineer| Desk - (408)967-7360| Cell - (408)666-1722
