I am trying to use:
job.setOutputFormatClass(LzoProtobufBlockOutputFormat.getOutputFormatClass(EventlogItem.Eventlog.class,
job.getConfiguration()));
I get:
java.lang.NullPointerException
at
com.twitter.data.proto.BlockStorage$SerializedBlock$Builder.getProtoBlobsCount(Unknown
Source)
at
com.twitter.elephantbird.mapreduce.io.BinaryBlockWriter.finish(BinaryBlockWriter.java:56)
at
com.twitter.elephantbird.mapreduce.io.BinaryBlockWriter.close(BinaryBlockWriter.java:62)
at
com.twitter.elephantbird.mapreduce.output.LzoBinaryBlockRecordWriter.close(LzoBinaryBlockRecordWriter.java:34)
at
org.apache.hadoop.mapred.MapTask$NewDirectOutputCollector.close(MapTask.java:539)
at org.apache.hadoop.mapred.MapTask.runNewMapper(MapTask.java:648)
at org.apache.hadoop.mapred.MapTask.run(MapTask.java:322)
at org.apache.hadoop.mapred.Child$4.run(Child.java:240)
at java.security.AccessController.doPrivileged(Native Method)
at javax.security.auth.Subject.doAs(Subject.java:396)
at
org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1115)
at org.apache.hadoop.mapred.Child.main(Child.java:234)
how do I resolve this? Am I missing some configuration setting?
--
valentina kroshilina
