Hi, getting things working on samza 0.10.0 finally :) I’m seeing the following error about 1/4 of the time from run-job.sh when starting jobs:
[yarnmaster01] out: 2015-11-17 14:56:00 KafkaSystemAdmin$ [INFO] Got metadata:
Map(__samza_coordinator_t-key-grouper_dev -> SystemStreamMetadata
[streamName=__samza_coordinator_t-key-grouper_dev, partitionMetadata={Partition
[partition=0]=SystemStreamPartitionMetadata [oldestOffset=null,
newestOffset=null, upcomingOffset=0]}])
[yarnmaster01] out: Exception in thread "main" java.lang.NullPointerException
[yarnmaster01] out: at
java.util.concurrent.ConcurrentHashMap.put(ConcurrentHashMap.java:1124)
[yarnmaster01] out: at
scala.collection.convert.Wrappers$JMapWrapperLike$class.update(Wrappers.scala:257)
[yarnmaster01] out: at
scala.collection.convert.Wrappers$JConcurrentMapWrapper.update(Wrappers.scala:348)
[yarnmaster01] out: at
scala.collection.mutable.MapLike$class.getOrElseUpdate(MapLike.scala:189)
[yarnmaster01] out: at
scala.collection.mutable.AbstractMap.getOrElseUpdate(Map.scala:91)
[yarnmaster01] out: at
org.apache.samza.system.kafka.KafkaSystemConsumer.register(KafkaSystemConsumer.scala:108)
[yarnmaster01] out: at
org.apache.samza.coordinator.stream.CoordinatorStreamSystemConsumer.register(CoordinatorStreamSystemConsumer.java:112)
[yarnmaster01] out: at
org.apache.samza.job.JobRunner.run(JobRunner.scala:88)
[yarnmaster01] out: at
org.apache.samza.job.JobRunner$.main(JobRunner.scala:43)
[yarnmaster01] out: at org.apache.samza.job.JobRunner.main(JobRunner.scala)
[yarnmaster01] out:
The same job will startup fine a minute later.
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