Sebastian Piu created SPARK-12775:
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Summary: Couldn't find leader offsets exception when hostname
can't be resolved
Key: SPARK-12775
URL: https://issues.apache.org/jira/browse/SPARK-12775
Project: Spark
Issue Type: Bug
Components: Streaming
Affects Versions: 1.6.0
Reporter: Sebastian Piu
Priority: Minor
When hostname resolution fails for a broker an unclear/misleading error is
shown:
org.apache.spark.SparkException: java.nio.channels.ClosedChannelException
org.apache.spark.SparkException: Couldn't find leader offsets for
Set([mytopic,0], [mytopic,18], [mytopic,12], [mytopic,6])
at
org.apache.spark.streaming.kafka.KafkaCluster$$anonfun$checkErrors$1.apply(KafkaCluster.scala:366)
at
org.apache.spark.streaming.kafka.KafkaCluster$$anonfun$checkErrors$1.apply(KafkaCluster.scala:366)
Error above ocurred when a broker was added to the cluster and my machine could
not resolve its hostname
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