Home | About | Sematext search-lucene.com search-hadoop.com
 Search Hadoop and all its subprojects:

Switch to Threaded View
Hive, mail # user - Fwd: Help to solve UDAF errors!


Copy link to this message
-
Fwd: Help to solve UDAF errors!
Abhishek Bhattacharya 2013-02-12, 18:29
Hi,

I looked through the syslogs and found the following exceptions.
Can anyone help me to figure out the point of error?

java.lang.RuntimeException: Error in configuring object
at org.apache.hadoop.util.ReflectionUtils.setJobConf(ReflectionUtils.java:93)
at org.apache.hadoop.util.ReflectionUtils.setConf(ReflectionUtils.java:64)
at org.apache.hadoop.util.ReflectionUtils.newInstance(ReflectionUtils.java:117)
at org.apache.hadoop.mapred.MapTask.runOldMapper(MapTask.java:387)
at org.apache.hadoop.mapred.MapTask.run(MapTask.java:325)
at org.apache.hadoop.mapred.Child$4.run(Child.java:270)
at java.security.AccessController.doPrivileged(Native Method)
at javax.security.auth.Subject.doAs(Subject.java:396)
at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1177)
at org.apache.hadoop.mapred.Child.main(Child.java:264)
Caused by: java.lang.reflect.InvocationTargetException
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at org.apache.hadoop.util.ReflectionUtils.setJobConf(ReflectionUtils.java:88)
... 9 more
Caused by: java.lang.RuntimeException: Error in configuring object
at org.apache.hadoop.util.ReflectionUtils.setJobConf(ReflectionUtils.java:93)
at org.apache.hadoop.util.ReflectionUtils.setConf(ReflectionUtils.java:64)
at org.apache.hadoop.util.ReflectionUtils.newInstance(ReflectionUtils.java:117)
at org.apache.hadoop.mapred.MapRunner.configure(MapRunner.java:34)
... 14 more
Caused by: java.lang.reflect.InvocationTargetException
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at org.apache.hadoop.util.ReflectionUtils.setJobConf(ReflectionUtils.java:88)
... 17 more
Caused by: java.lang.RuntimeException: Map operator initialization failed
at org.apache.hadoop.hive.ql.exec.ExecMapper.configure(ExecMapper.java:121)
... 22 more
Caused by: java.lang.RuntimeException:
java.lang.NoSuchMethodException:
com.orzota.hive.udaf.groupby.UDAFTopNPercent$TopNPercentEvaluator.<init>()
at org.apache.hadoop.util.ReflectionUtils.newInstance(ReflectionUtils.java:115)
at org.apache.hadoop.hive.ql.udf.generic.GenericUDAFBridge$GenericUDAFBridgeEvaluator.getNewAggregationBuffer(GenericUDAFBridge.java:160)
at org.apache.hadoop.hive.ql.exec.GroupByOperator.newAggregations(GroupByOperator.java:536)
at org.apache.hadoop.hive.ql.exec.GroupByOperator.initializeOp(GroupByOperator.java:332)
at org.apache.hadoop.hive.ql.exec.Operator.initialize(Operator.java:357)
at org.apache.hadoop.hive.ql.exec.Operator.initialize(Operator.java:433)
at org.apache.hadoop.hive.ql.exec.Operator.initializeChildren(Operator.java:389)
at org.apache.hadoop.hive.ql.exec.SelectOperator.initializeOp(SelectOperator.java:62)
at org.apache.hadoop.hive.ql.exec.Operator.initialize(Operator.java:357)
at org.apache.hadoop.hive.ql.exec.Operator.initialize(Operator.java:433)
at org.apache.hadoop.hive.ql.exec.Operator.initializeChildren(Operator.java:389)
at org.apache.hadoop.hive.ql.exec.TableScanOperator.initializeOp(TableScanOperator.java:133)
at org.apache.hadoop.hive.ql.exec.Operator.initialize(Operator.java:357)
at org.apache.hadoop.hive.ql.exec.MapOperator.initializeOp(MapOperator.java:444)
at org.apache.hadoop.hive.ql.exec.Operator.initialize(Operator.java:357)
at org.apache.hadoop.hive.ql.exec.ExecMapper.configure(ExecMapper.java:98)
... 22 more
Caused by: java.lang.NoSuchMethodException:
com.orzota.hive.udaf.groupby.UDAFTopNPercent$TopNPercentEvaluator.<init>()
at java.lang.Class.getConstructor0(Class.java:2706)
at java.lang.Class.getDeclaredConstructor(Class.java:1985)
at org.apache.hadoop.util.ReflectionUtils.newInstance(ReflectionUtils.java:109)
... 37 more
2013-02-12 07:21:14,049 INFO org.apache.hadoop.mapred.Task: Runnning
cleanup for the task

Thanks,
Abhishek

From: Abhishek Bhattacharya <[EMAIL PROTECTED]>
Date: Tue, Feb 12, 2013 at 12:48 PM
Subject: Re: Help to solve UDAF errors!
To: [EMAIL PROTECTED]
Hi Mark,

Thanks for the response!
The UDAFPercentile.java have two terminate() methods since it is handling
two different input types by the two inner classes: PercentileLongEvaluator
and PercentileLongArrayEvaluator.
I am handling only a single input type of double from one table column to
the iterate() method and wish to return an ArrayList<DoubleWritable> from
the terminate() method.
What is wrong in my class?
Moreover, is there any way for UDF/UDAF/UDTF which can process all the rows
of the table and output only a subset of the total rows based on some
aggregation function of one column attribute i.e., similar to my case of
computing the top-n-percent of a column attribute and output the entire set
of filtered rows with all other columns from the table?

Thanks,
Abhishek

On Sun, Feb 10, 2013 at 12:36 PM, Mark Grover
<[EMAIL PROTECTED]>wrote:

Thanks and Regards,

Abhishek Bhattacharya
PhD Computer Science
School of Computing and Information Sciences
Florida International University

Thanks and Regards,

Abhishek Bhattacharya
PhD Computer Science
School of Computing and Information Sciences
Florida International University