Hello all,
My hive queries are returning back successfully, however if I did in the
map/reduce job that's running as a result of running the query, I see the
following errors in a lot of map tasks that get killed:
java.lang.RuntimeException: Map operator initialization failed
at
org.apache.hadoop.hive.ql.exec.ExecMapper.configure(ExecMapper.java:110)
at
org.apache.hadoop.util.ReflectionUtils.setConf(ReflectionUtils.java:58)
at
org.apache.hadoop.util.ReflectionUtils.newInstance(ReflectionUtils.java:83)
at org.apache.hadoop.mapred.MapRunner.configure(MapRunner.java:34)
at
org.apache.hadoop.util.ReflectionUtils.setConf(ReflectionUtils.java:58)
at
org.apache.hadoop.util.ReflectionUtils.newInstance(ReflectionUtils.java:83)
at org.apache.hadoop.mapred.MapTask.run(MapTask.java:328)
at org.apache.hadoop.mapred.Child.main(Child.java:155)
Caused by: java.lang.NullPointerException
at
org.apache.hadoop.hive.ql.exec.GroupByOperator.initializeOp(GroupByOperator.java:207)
at org.apache.hadoop.hive.ql.exec.Operator.initialize(Operator.java:316)
at org.apache.hadoop.hive.ql.exec.Operator.initialize(Operator.java:353)
at
org.apache.hadoop.hive.ql.exec.Operator.initializeChildren(Operator.java:338)
at
org.apache.hadoop.hive.ql.exec.SelectOperator.initializeOp(SelectOperator.java:59)
at org.apache.hadoop.hive.ql.exec.Operator.initialize(Operator.java:316)
at org.apache.hadoop.hive.ql.exec.Operator.initialize(Operator.java:353)
at
org.apache.hadoop.hive.ql.exec.Operator.initializeChildren(Operator.java:338)
at
org.apache.hadoop.hive.ql.exec.Operator.initializeOp(Operator.java:324)
at org.apache.hadoop.hive.ql.exec.Operator.initialize(Operator.java:316)
at
org.apache.hadoop.hive.ql.exec.MapOperator.initializeOp(MapOperator.java:301)
at org.apache.hadoop.hive.ql.exec.Operator.initialize(Operator.java:316)
at
org.apache.hadoop.hive.ql.exec.ExecMapper.configure(ExecMapper.java:82)
... 7 more
The reducers also fail at times with similar exceptions/errors.
Is this expected, or do I have something misconfigured? I don't have the
hive distribution on all of my hadoop nodes, just the single node where I
run the queries. I am using 0.4-rc2.
Thanks,
Ryan
