It looks like the issue is here at the bottom of the list of stack traces,
where it can't resolve the HiveDriver class. I think only hive-exec.jar is
shipped as part of a map/reduce job, you would have to make sure hive-jdbc is
in the class path during the map/reduce jobs.
Are you sure your UDF is actually able to run the query, since this error seems
to be occurring during your UDF initialization? Not sure if running a separate
query within a UDF is something that would be recommended, though maybe others
can speak on that.
> Caused by: java.lang.ClassNotFoundException: org.apache.hive.jdbc.HiveDriver
> at java.net.URLClassLoader$1.run(URLClassLoader.java:366)
> at java.net.URLClassLoader$1.run(URLClassLoader.java:355)
> at java.security.AccessController.doPrivileged(Native Method)
> at java.net.URLClassLoader.findClass(URLClassLoader.java:354)
> at java.lang.ClassLoader.loadClass(ClassLoader.java:423)
> at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:308)
> at java.lang.ClassLoader.loadClass(ClassLoader.java:356)
> at java.lang.Class.forName0(Native Method)
> at java.lang.Class.forName(Class.java:186)
> at
> com.impetus.ilabs.etloffload.common.utils.HiveJDBCConnectionFactory.<init>(HiveJDBCConnectionFactory.java:23)
> ... 44 more
On Oct 1, 2014, at 8:09 AM, reena upadhyay <reena2...@gmail.com> wrote:
> Hi,
>
>
> I have a single argument udf that takes the sql string as a argument. Inside
> the udf, I have used hive jdbc client to execute the query. My query
> execution part inside udf is working fine and also I am able to get the
> desired result from the query. My udf is returning a String. I am getting
> error in returning the result from the evaluate method of a udf.
>
> Stack trace:
> 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:432)
> at org.apache.hadoop.mapred.MapTask.run(MapTask.java:372)
> at org.apache.hadoop.mapred.Child$4.run(Child.java:255)
> at java.security.AccessController.doPrivileged(Native Method)
> at javax.security.auth.Subject.doAs(Subject.java:415)
> at
> org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1136)
> at org.apache.hadoop.mapred.Child.main(Child.java:249)
> Caused by: java.lang.reflect.InvocationTargetException
> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> at
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
> at
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
> at java.lang.reflect.Method.invoke(Method.java:601)
> 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:57)
> at
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
> at java.lang.reflect.Method.invoke(Method.java:601)
> 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.mr.ExecMapper.configure(ExecMapper.java:154)
> ... 22 more
> Caused by: org.apache.hadoop.hive.ql.exec.UDFArgumentException:
> org.apache.hadoop.hive.ql.metadata.HiveException: Unable to execute method
> public java.lang.String
> com.impetus.ilabs.etloffload.udf.UDFType.evaluate(org.apache.hadoop.io.Text)
> on object com.impetus.ilabs.etloffload.udf.UDFType@3ff839e8 of class
> com.impetus.ilabs.etloffload.udf.UDFType with arguments
> {employeeudf.age:org.apache.hadoop.io.Text} of size 1
> at
> org.apache.hadoop.hive.ql.udf.generic.GenericUDF.initializeAndFoldConstants(GenericUDF.java:148)
> at
> org.apache.hadoop.hive.ql.exec.ExprNodeGenericFuncEvaluator.initialize(ExprNodeGenericFuncEvaluator.java:127)
> at
> org.apache.hadoop.hive.ql.exec.Operator.initEvaluators(Operator.java:931)
> at
> org.apache.hadoop.hive.ql.exec.Operator.initEvaluatorsAndReturnStruct(Operator.java:957)
> at
> org.apache.hadoop.hive.ql.exec.SelectOperator.initializeOp(SelectOperator.java:65)
> at org.apache.hadoop.hive.ql.exec.Operator.initialize(Operator.java:376)
> at org.apache.hadoop.hive.ql.exec.Operator.initialize(Operator.java:460)
> at
> org.apache.hadoop.hive.ql.exec.Operator.initializeChildren(Operator.java:416)
> at
> org.apache.hadoop.hive.ql.exec.TableScanOperator.initializeOp(TableScanOperator.java:189)
> at org.apache.hadoop.hive.ql.exec.Operator.initialize(Operator.java:376)
> at
> org.apache.hadoop.hive.ql.exec.MapOperator.initializeOp(MapOperator.java:425)
> at org.apache.hadoop.hive.ql.exec.Operator.initialize(Operator.java:376)
> at
> org.apache.hadoop.hive.ql.exec.mr.ExecMapper.configure(ExecMapper.java:133)
> ... 22 more
> Caused by: org.apache.hadoop.hive.ql.metadata.HiveException: Unable to
> execute method public java.lang.String
> com.impetus.ilabs.etloffload.udf.UDFType.evaluate(org.apache.hadoop.io.Text)
> on object com.impetus.ilabs.etloffload.udf.UDFType@3ff839e8 of class
> com.impetus.ilabs.etloffload.udf.UDFType with arguments
> {employeeudf.age:org.apache.hadoop.io.Text} of size 1
> at
> org.apache.hadoop.hive.ql.exec.FunctionRegistry.invoke(FunctionRegistry.java:1243)
> at
> org.apache.hadoop.hive.ql.udf.generic.GenericUDFBridge.evaluate(GenericUDFBridge.java:182)
> at
> org.apache.hadoop.hive.ql.udf.generic.GenericUDF.initializeAndFoldConstants(GenericUDF.java:145)
> ... 34 more
> Caused by: java.lang.reflect.InvocationTargetException
> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> at
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
> at
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
> at java.lang.reflect.Method.invoke(Method.java:601)
> at
> org.apache.hadoop.hive.ql.exec.FunctionRegistry.invoke(FunctionRegistry.java:1219)
> ... 36 more
> Caused by: java.lang.ExceptionInInitializerError
> at com.impetus.ilabs.etloffload.udf.UDFType.getColType(UDFType.java:82)
> at com.impetus.ilabs.etloffload.udf.UDFType.evaluate(UDFType.java:76)
> ... 41 more
> Caused by: java.lang.RuntimeException: java.lang.ClassNotFoundException:
> org.apache.hive.jdbc.HiveDriver
> at
> com.impetus.ilabs.etloffload.common.utils.HiveJDBCConnectionFactory.<init>(HiveJDBCConnectionFactory.java:27)
> at
> com.impetus.ilabs.etloffload.common.utils.HiveJDBCConnectionFactory.<clinit>(HiveJDBCConnectionFactory.java:15)
> ... 43 more
> Caused by: java.lang.ClassNotFoundException: org.apache.hive.jdbc.HiveDriver
> at java.net.URLClassLoader$1.run(URLClassLoader.java:366)
> at java.net.URLClassLoader$1.run(URLClassLoader.java:355)
> at java.security.AccessController.doPrivileged(Native Method)
> at java.net.URLClassLoader.findClass(URLClassLoader.java:354)
> at java.lang.ClassLoader.loadClass(ClassLoader.java:423)
> at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:308)
> at java.lang.ClassLoader.loadClass(ClassLoader.java:356)
> at java.lang.Class.forName0(Native Method)
> at java.lang.Class.forName(Class.java:186)
> at
> com.impetus.ilabs.etloffload.common.utils.HiveJDBCConnectionFactory.<init>(HiveJDBCConnectionFactory.java:23)
> ... 44 more
>
>
> Any help would be highle appreciated.
--
CONFIDENTIALITY NOTICE
NOTICE: This message is intended for the use of the individual or entity to
which it is addressed and may contain information that is confidential,
privileged and exempt from disclosure under applicable law. If the reader
of this message is not the intended recipient, you are hereby notified that
any printing, copying, dissemination, distribution, disclosure or
forwarding of this communication is strictly prohibited. If you have
received this communication in error, please contact the sender immediately
and delete it from your system. Thank You.
