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https://issues.apache.org/jira/browse/HIVE-2182?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13101499#comment-13101499
]
John Sichi commented on HIVE-2182:
----------------------------------
It's still failing for me with the latest patch. Did you use -Doverwrite=true
to regenerate the log?
{noformat}
[junit] diff -a -I file: -I pfile: -I hdfs: -I /tmp/ -I invalidscheme: -I
lastUpdateTime -I lastAccessTime -I [Oo]wner -I CreateTime -I LastAccessTime -I
Location -I LOCATION ' -I transient_lastDdlTime -I last_modified_ -I
java.lang.RuntimeException -I at org -I at sun -I at java -I at junit -I Caused
by: -I LOCK_QUERYID: -I grantTime -I [.][.][.] [0-9]* more -I job_[0-9]*_[0-9]*
-I USING 'java -cp
/data/users/jsichi/open/test-trunk/build/ql/test/logs/clientnegative/udfnull.q.out
/data/users/jsichi/open/test-trunk/ql/src/test/results/clientnegative/udfnull.q.out
[junit] 18c18,27
[junit] < /data/users/jsichi/open/test-trunk/build/ql/tmp//hive.log
[junit] ---
[junit] > /home/opensrc/9thsep/build/ql/tmp//hive.log
[junit] > FAILED: Execution Error, return code 2 from
org.apache.hadoop.hive.ql.exec.MapRedTask
[junit] > PREHOOK: query: CREATE TEMPORARY FUNCTION example_arraysum AS
'org.apache.hadoop.hive.contrib.udf.example.UDFExampleArraySum'
[junit] > PREHOOK: type: CREATEFUNCTION
[junit] > POSTHOOK: query: CREATE TEMPORARY FUNCTION example_arraysum AS
'org.apache.hadoop.hive.contrib.udf.example.UDFExampleArraySum'
[junit] > POSTHOOK: type: CREATEFUNCTION
[junit] > PREHOOK: query: SELECT example_arraysum(lint)FROM src_thrift
[junit] > PREHOOK: type: QUERY
[junit] > PREHOOK: Input: default@src_thrift
[junit] > PREHOOK: Output:
file:/tmp/root/hive_2011-05-25_10-05-57_126_4632621650656424226/-mr-10000
{noformat}
> Avoid null pointer exception when executing UDF
> -----------------------------------------------
>
> Key: HIVE-2182
> URL: https://issues.apache.org/jira/browse/HIVE-2182
> Project: Hive
> Issue Type: Bug
> Components: Query Processor
> Affects Versions: 0.5.0, 0.8.0
> Environment: Hadoop 0.20.1, Hive0.8.0 and SUSE Linux Enterprise
> Server 10 SP2 (i586) - Kernel 2.6.16.60-0.21-smp (5)
> Reporter: Chinna Rao Lalam
> Assignee: Chinna Rao Lalam
> Attachments: HIVE-2182.1.patch, HIVE-2182.2.patch, HIVE-2182.3.patch,
> HIVE-2182.patch
>
>
> For using UDF's executed following steps
> {noformat}
> add jar /home/udf/udf.jar;
> create temporary function grade as 'udf.Grade';
> select m.userid,m.name,grade(m.maths,m.physics,m.chemistry) from marks m;
> {noformat}
> But from the above steps if we miss the first step (add jar) and execute
> remaining steps
> {noformat}
> create temporary function grade as 'udf.Grade';
> select m.userid,m.name,grade(m.maths,m.physics,m.chemistry) from marks m;
> {noformat}
> In tasktracker it is throwing this exception
> {noformat}
> Caused by: java.lang.RuntimeException: Map operator initialization failed
> at
> org.apache.hadoop.hive.ql.exec.ExecMapper.configure(ExecMapper.java:121)
> ... 18 more
> Caused by: java.lang.RuntimeException: java.lang.NullPointerException
> at
> org.apache.hadoop.util.ReflectionUtils.newInstance(ReflectionUtils.java:115)
> at
> org.apache.hadoop.hive.ql.udf.generic.GenericUDFBridge.initialize(GenericUDFBridge.java:126)
> at
> org.apache.hadoop.hive.ql.exec.ExprNodeGenericFuncEvaluator.initialize(ExprNodeGenericFuncEvaluator.java:133)
> at
> org.apache.hadoop.hive.ql.exec.Operator.initEvaluators(Operator.java:878)
> at
> org.apache.hadoop.hive.ql.exec.Operator.initEvaluatorsAndReturnStruct(Operator.java:904)
> at
> org.apache.hadoop.hive.ql.exec.SelectOperator.initializeOp(SelectOperator.java:60)
> 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)
> ... 18 more
> Caused by: java.lang.NullPointerException
> at
> java.util.concurrent.ConcurrentHashMap.get(ConcurrentHashMap.java:768)
> at
> org.apache.hadoop.util.ReflectionUtils.newInstance(ReflectionUtils.java:107)
> ... 31 more
> {noformat}
> Instead of null pointer exception it should throw meaning full exception
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