[jira] [Created] (HUDI-545) Throw NoSuchElementException when init IncrementalRelation

["lamber-ken (Jira)" <ji...@apache.org>]

lamber-ken created HUDI-545:
-------------------------------

             Summary: Throw NoSuchElementException when init IncrementalRelation
                 Key: HUDI-545
                 URL: https://issues.apache.org/jira/browse/HUDI-545
             Project: Apache Hudi (incubating)
          Issue Type: Bug
          Components: Incremental Pull
            Reporter: lamber-ken


If there is an empty commit in HUDI storage then Incremental Pulling throws "java.util.NoSuchElementException". 
{code:java}
20/01/16 19:22:49 ERROR Client: Application diagnostics message: User class threw exception: java.util.NoSuchElementException
	at java.util.HashMap$HashIterator.nextNode(HashMap.java:1447)
	at java.util.HashMap$ValueIterator.next(HashMap.java:1474)
	at org.apache.hudi.IncrementalRelation.<init>(IncrementalRelation.scala:80)
	at org.apache.hudi.DefaultSource.createRelation(DefaultSource.scala:65)
	at org.apache.hudi.DefaultSource.createRelation(DefaultSource.scala:46)
	at org.apache.spark.sql.execution.datasources.DataSource.resolveRelation(DataSource.scala:318)
	at org.apache.spark.sql.DataFrameReader.loadV1Source(DataFrameReader.scala:223)
	at org.apache.spark.sql.DataFrameReader.load(DataFrameReader.scala:211)
	at org.apache.spark.sql.DataFrameReader.load(DataFrameReader.scala:178)
	at com.amazon.finautopolarisdataplanesparkemr.emr.java.SparkHiveDataLoadCoreHudiReader.readData(SparkHiveDataLoadCoreHudiReader.java:147)
	at com.amazon.finautopolarisdataplanesparkemr.emr.java.SparkHiveDataLoadCoreHudiReader.start(SparkHiveDataLoadCoreHudiReader.java:73)
	at com.amazon.finautopolarisdataplanesparkemr.emr.java.SparkHiveDataLoadCoreHudiReader.main(SparkHiveDataLoadCoreHudiReader.java:36)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:498)
	at org.apache.spark.deploy.yarn.ApplicationMaster$$anon$2.run(ApplicationMaster.scala:684)Exception in thread "main" org.apache.spark.SparkException: Application application_1579116139216_0082 finished with failed status
	at org.apache.spark.deploy.yarn.Client.run(Client.scala:1149)
	at org.apache.spark.deploy.yarn.YarnClusterApplication.start(Client.scala:1526)
	at org.apache.spark.deploy.SparkSubmit.org$apache$spark$deploy$SparkSubmit$$runMain(SparkSubmit.scala:853)
	at org.apache.spark.deploy.SparkSubmit.doRunMain$1(SparkSubmit.scala:161)
	at org.apache.spark.deploy.SparkSubmit.submit(SparkSubmit.scala:184)
	at org.apache.spark.deploy.SparkSubmit.doSubmit(SparkSubmit.scala:86)
	at org.apache.spark.deploy.SparkSubmit$$anon$2.doSubmit(SparkSubmit.scala:928)
	at org.apache.spark.deploy.SparkSubmit$.main(SparkSubmit.scala:937)
	at org.apache.spark.deploy.SparkSubmit.main(SparkSubmit.scala)
{code}



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