Hello Team, Kindly help with the below issue as we are not able to write data from phoenix table to hdfs using Map Reduce.
We are getting below error as the connection lost intermittently for map reduce job. Before launching mapper connection is established successfully. map 0% and reduce 0% Error: java.lang.RuntimeException: java.lang.NullPointerException at org.apache.hadoop.mapred.MapTask.NewTrackingRecordReader.<init>MapTask.java org.apache.hadoop.mapred.MapTask.run at org.apache.hadoop.mapred.YarnChild.run(YarnChild.java:117) at java.security.AccessController.doPrivileged(Native Method) at java.security.auth.Subject.doAs(Subject.java) at org.apache.hadoop.security.UserGroupInformation.doAs(User group information.java:1875) Caused by : java.lang.NullPointerException Above error coming while running mapper phase in an interval and failed at reducer phase. We have upgraded our phoenix and Hadoop version. Phoenix Version from 4.14-hbase-1.2 to 5.0.0-Hbase-2.0 Hadoop version from 2.0 to 3.0.0 Note - Similar code works fine with the previous versions. Please suggest. Thanks and Regards, Ankit Joshi
