[ https://issues.apache.org/jira/browse/HADOOP-6729?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Allen Wittenauer resolved HADOOP-6729. -------------------------------------- Resolution: Won't Fix Closing as won't fix based upon Tom's comments. So it's all his fault. > serializer.JavaSerialization should be added to io.serializations by default > ---------------------------------------------------------------------------- > > Key: HADOOP-6729 > URL: https://issues.apache.org/jira/browse/HADOOP-6729 > Project: Hadoop Common > Issue Type: Improvement > Components: conf > Affects Versions: 0.20.2 > Reporter: Ted Yu > > org.apache.hadoop.io.serializer.JavaSerialization isn't included in > io.serializations by default. > When a class which implements the Serializable interface is used, user would > see the following without serializer.JavaSerialization: > java.lang.NullPointerException > at > org.apache.hadoop.io.serializer.SerializationFactory.getSerializer(SerializationFactory.java:73) > at > org.apache.hadoop.mapred.MapTask$MapOutputBuffer.<init>(MapTask.java:759) > at > org.apache.hadoop.mapred.MapTask$NewOutputCollector.<init>(MapTask.java:487) > at org.apache.hadoop.mapred.MapTask.runNewMapper(MapTask.java:575) > at org.apache.hadoop.mapred.MapTask.run(MapTask.java:305) > at org.apache.hadoop.mapred.Child.main(Child.java:170) -- This message was sent by Atlassian JIRA (v6.2#6252)