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Posted to issues@spark.apache.org by "Gabor Barna (Jira)" <ji...@apache.org> on 2020/12/15 13:16:00 UTC
[jira] [Created] (SPARK-33792) NullPointerException in
HDFSBackedStateStoreProvider
Gabor Barna created SPARK-33792:
-----------------------------------
Summary: NullPointerException in HDFSBackedStateStoreProvider
Key: SPARK-33792
URL: https://issues.apache.org/jira/browse/SPARK-33792
Project: Spark
Issue Type: Bug
Components: Structured Streaming
Affects Versions: 2.4.4
Reporter: Gabor Barna
Hi,
We are getting NPEs with spark structured streaming from time-to-time. Here's the stacktrace:
{code:java}
java.lang.NullPointerException
at org.apache.spark.sql.execution.streaming.state.HDFSBackedStateStoreProvider$HDFSBackedStateStore$$anonfun$iterator$1.apply(HDFSBackedStateStoreProvider.scala:164)
at org.apache.spark.sql.execution.streaming.state.HDFSBackedStateStoreProvider$HDFSBackedStateStore$$anonfun$iterator$1.apply(HDFSBackedStateStoreProvider.scala:163)
at scala.collection.Iterator$$anon$11.next(Iterator.scala:410)
at scala.collection.Iterator$$anon$11.next(Iterator.scala:410)
at scala.collection.Iterator$$anon$13.hasNext(Iterator.scala:463)
at scala.collection.Iterator$$anon$12.hasNext(Iterator.scala:440)
at scala.collection.Iterator$JoinIterator.hasNext(Iterator.scala:220)
at org.apache.spark.util.CompletionIterator.hasNext(CompletionIterator.scala:31)
at org.apache.spark.sql.catalyst.expressions.GeneratedClass$GeneratedIteratorForCodegenStage3.processNext(Unknown Source)
at org.apache.spark.sql.execution.BufferedRowIterator.hasNext(BufferedRowIterator.java:43)
at org.apache.spark.sql.execution.WholeStageCodegenExec$$anonfun$13$$anon$1.hasNext(WholeStageCodegenExec.scala:636)
at scala.collection.Iterator$$anon$11.hasNext(Iterator.scala:409)
at org.apache.spark.sql.kinesis.KinesisWriteTask.execute(KinesisWriteTask.scala:50)
at org.apache.spark.sql.kinesis.KinesisWriter$$anonfun$write$1$$anonfun$apply$mcV$sp$1$$anonfun$apply$1.apply$mcV$sp(KinesisWriter.scala:40)
at org.apache.spark.sql.kinesis.KinesisWriter$$anonfun$write$1$$anonfun$apply$mcV$sp$1$$anonfun$apply$1.apply(KinesisWriter.scala:40)
at org.apache.spark.sql.kinesis.KinesisWriter$$anonfun$write$1$$anonfun$apply$mcV$sp$1$$anonfun$apply$1.apply(KinesisWriter.scala:40)
at org.apache.spark.util.Utils$.tryWithSafeFinally(Utils.scala:1360)
at org.apache.spark.sql.kinesis.KinesisWriter$$anonfun$write$1$$anonfun$apply$mcV$sp$1.apply(KinesisWriter.scala:40)
at org.apache.spark.sql.kinesis.KinesisWriter$$anonfun$write$1$$anonfun$apply$mcV$sp$1.apply(KinesisWriter.scala:38)
at org.apache.spark.rdd.RDD$$anonfun$foreachPartition$1$$anonfun$apply$28.apply(RDD.scala:935)
at org.apache.spark.rdd.RDD$$anonfun$foreachPartition$1$$anonfun$apply$28.apply(RDD.scala:935)
at org.apache.spark.SparkContext$$anonfun$runJob$5.apply(SparkContext.scala:2101)
at org.apache.spark.SparkContext$$anonfun$runJob$5.apply(SparkContext.scala:2101)
at org.apache.spark.scheduler.ResultTask.runTask(ResultTask.scala:90)
at org.apache.spark.scheduler.Task.run(Task.scala:123)
at org.apache.spark.executor.Executor$TaskRunner$$anonfun$10.apply(Executor.scala:408)
at org.apache.spark.util.Utils$.tryWithSafeFinally(Utils.scala:1360)
at org.apache.spark.executor.Executor$TaskRunner.run(Executor.scala:414)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
at java.lang.Thread.run(Thread.java:748) {code}
As you can see we are using [https://github.com/qubole/kinesis-sql/] for writing the kinesis queue, the state backend is HDFS.
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