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ASF GitHub Bot commented on KAFKA-2880: --------------------------------------- GitHub user hachikuji opened a pull request: https://github.com/apache/kafka/pull/581 KAFKA-2880: consumer should handle disconnect/timeout for metadata requests You can merge this pull request into a Git repository by running: $ git pull https://github.com/hachikuji/kafka KAFKA-2880 Alternatively you can review and apply these changes as the patch at: https://github.com/apache/kafka/pull/581.patch To close this pull request, make a commit to your master/trunk branch with (at least) the following in the commit message: This closes #581 ---- commit 605641249dc289ae7e8d7e003cd0e1f35367abad Author: Jason Gustafson <ja...@confluent.io> Date: 2015-11-24T01:45:32Z KAFKA-2880: consumer should handle disconnect/timeout for metadata requests commit 851c9b3877b337c83e88f4c4100383129f83222c Author: Jason Gustafson <ja...@confluent.io> Date: 2015-11-24T17:40:00Z additional error handling/test cases for topic metadata API ---- > Fetcher.getTopicMetadata NullPointerException when broker cannot be reached > --------------------------------------------------------------------------- > > Key: KAFKA-2880 > URL: https://issues.apache.org/jira/browse/KAFKA-2880 > Project: Kafka > Issue Type: Bug > Components: clients > Affects Versions: 0.9.0.0 > Reporter: Ewen Cheslack-Postava > Assignee: Jason Gustafson > > The Fetcher class will throw a NullPointerException if a broker cannot be > reached: > {quote} > Exception in thread "main" java.lang.NullPointerException > at > org.apache.kafka.common.requests.MetadataResponse.<init>(MetadataResponse.java:130) > at > org.apache.kafka.clients.consumer.internals.Fetcher.getTopicMetadata(Fetcher.java:203) > at > org.apache.kafka.clients.consumer.KafkaConsumer.partitionsFor(KafkaConsumer.java:1143) > at > org.apache.kafka.connect.util.KafkaBasedLog.start(KafkaBasedLog.java:126) > at > org.apache.kafka.connect.storage.KafkaOffsetBackingStore.start(KafkaOffsetBackingStore.java:85) > at org.apache.kafka.connect.runtime.Worker.start(Worker.java:108) > at org.apache.kafka.connect.runtime.Connect.start(Connect.java:56) > at > org.apache.kafka.connect.cli.ConnectDistributed.main(ConnectDistributed.java:62) > {quote} > This is trivially reproduced by trying to start Kafka Connect in distributed > mode (i.e. connect-distributed.sh config/connect-distributed.properties) with > no broker running. However, it's not specific to Kafka Connect, it just > happens to use the consumer in a way that triggers it reliably. -- This message was sent by Atlassian JIRA (v6.3.4#6332)