[SPARK-18400] NPE when resharding Kinesis Stream

• Type: Bug
• Status: Resolved
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 1.6.2
• Fix Version/s: 2.0.3, 2.1.0
• Component/s: DStreams

Environment

Spark 1.6 streaming from AWS Kinesis

• Assignee: Sean R. Owen
• Reporter: Brian ONeill
• Created: 10/Nov/16 14:55
• Updated: 16/Nov/16 10:17
• Resolved: 16/Nov/16 10:17

Description

Occasionally, we see an NPE when we reshard our streams:

java.lang.NullPointerException
	at java.util.concurrent.ConcurrentHashMap.replaceNode(ConcurrentHashMap.java:1106) ~[?:1.8.0_60]
	at java.util.concurrent.ConcurrentHashMap.remove(ConcurrentHashMap.java:1097) ~[?:1.8.0_60]
	at org.apache.spark.streaming.kinesis.KinesisCheckpointer.removeCheckpointer(KinesisCheckpointer.scala:66) ~[spark-streaming-kinesis-asl_2.11-1.6.4-SNAPSHOT.jar:1.6.4-SNAPSHOT]
	at org.apache.spark.streaming.kinesis.KinesisReceiver.removeCheckpointer(KinesisReceiver.scala:245) ~[spark-streaming-kinesis-asl_2.11-1.6.4-SNAPSHOT.jar:1.6.4-SNAPSHOT]
	at org.apache.spark.streaming.kinesis.KinesisRecordProcessor.shutdown(KinesisRecordProcessor.scala:124) ~[spark-streaming-kinesis-asl_2.11-1.6.4-SNAPSHOT.jar:1.6.4-SNAPSHOT]
	at com.amazonaws.services.kinesis.clientlibrary.lib.worker.V1ToV2RecordProcessorAdapter.shutdown(V1ToV2RecordProcessorAdapter.java:48) ~[amazon-kinesis-client-1.6.2.jar:?]
	at com.amazonaws.services.kinesis.clientlibrary.lib.worker.ShutdownTask.call(ShutdownTask.java:100) [amazon-kinesis-client-1.6.2.jar:?]
	at com.amazonaws.services.kinesis.clientlibrary.lib.worker.MetricsCollectingTaskDecorator.call(MetricsCollectingTaskDecorator.java:49) [amazon-kinesis-client-1.6.2.jar:?]
	at com.amazonaws.services.kinesis.clientlibrary.lib.worker.MetricsCollectingTaskDecorator.call(MetricsCollectingTaskDecorator.java:24) [amazon-kinesis-client-1.6.2.jar:?]
	at java.util.concurrent.FutureTask.run(FutureTask.java:266) [?:1.8.0_60]
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) [?:1.8.0_60]
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) [?:1.8.0_60]
	at java.lang.Thread.run(Thread.java:745) [?:1.8.0_60]

Issue Links

• links to: [Github] Pull Request #15882 (srowen)