Ted Yu created SPARK-6045:
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Summary: RecordWriter should be checked against null in
PairRDDFunctions#saveAsNewAPIHadoopDataset
Key: SPARK-6045
URL: https://issues.apache.org/jira/browse/SPARK-6045
Project: Spark
Issue Type: Bug
Reporter: Ted Yu
gtinside reported in the thread 'NullPointerException in TaskSetManager' with
the following stack trace:
{code}
WARN 2015-02-26 14:21:43,217 [task-result-getter-0] TaskSetManager - Lost
task 14.2 in stage 0.0 (TID 29, devntom003.dev.blackrock.com):
java.lang.NullPointerException
org.apache.spark.rdd.PairRDDFunctions.saveAsNewAPIHadoopDataset(PairRDDFunctions.scala:1007)
com.bfm.spark.test.CassandraHadoopMigrator$.main(CassandraHadoopMigrator.scala:77)
com.bfm.spark.test.CassandraHadoopMigrator.main(CassandraHadoopMigrator.scala)
sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
java.lang.reflect.Method.invoke(Method.java:606)
org.apache.spark.deploy.SparkSubmit$.launch(SparkSubmit.scala:358)
org.apache.spark.deploy.SparkSubmit$.main(SparkSubmit.scala:75)
org.apache.spark.deploy.SparkSubmit.main(SparkSubmit.scala)
{code}
Looks like the following call in finally block was the cause:
{code}
writer.close(hadoopContext)
{code}
We should check writer against null before calling close().
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