Yibing Shi created HIVE-11733:
---------------------------------
Summary: UDF GenericUDFReflect cannot find classes added by "ADD
JAR"
Key: HIVE-11733
URL: https://issues.apache.org/jira/browse/HIVE-11733
Project: Hive
Issue Type: Bug
Components: UDF
Affects Versions: 1.2.1
Reporter: Yibing Shi
When run below command:
{quote}
hive -e "add jar /root/hive/TestReflect.jar; \
select reflect('com.yshi.hive.TestReflect', 'testReflect', code) from sample_07
limit 3"
{quote}
Get below error:
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Failed with exception
java.io.IOException:org.apache.hadoop.hive.ql.metadata.HiveException:
UDFReflect evaluate
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The full stack trace is:
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15/09/04 07:00:37 [main]: INFO compress.CodecPool: Got brand-new decompressor
[.bz2]
Failed with exception
java.io.IOException:org.apache.hadoop.hive.ql.metadata.HiveException:
UDFReflect evaluate
15/09/04 07:00:37 [main]: ERROR CliDriver: Failed with exception
java.io.IOException:org.apache.hadoop.hive.ql.metadata.HiveException:
UDFReflect evaluate
java.io.IOException: org.apache.hadoop.hive.ql.metadata.HiveException:
UDFReflect evaluate
at org.apache.hadoop.hive.ql.exec.FetchTask.fetch(FetchTask.java:152)
at org.apache.hadoop.hive.ql.Driver.getResults(Driver.java:1657)
at
org.apache.hadoop.hive.cli.CliDriver.processLocalCmd(CliDriver.java:227)
at org.apache.hadoop.hive.cli.CliDriver.processCmd(CliDriver.java:159)
at org.apache.hadoop.hive.cli.CliDriver.processLine(CliDriver.java:370)
at
org.apache.hadoop.hive.cli.CliDriver.executeDriver(CliDriver.java:756)
at org.apache.hadoop.hive.cli.CliDriver.run(CliDriver.java:675)
at org.apache.hadoop.hive.cli.CliDriver.main(CliDriver.java:615)
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:606)
at org.apache.hadoop.util.RunJar.run(RunJar.java:221)
at org.apache.hadoop.util.RunJar.main(RunJar.java:136)
Caused by: org.apache.hadoop.hive.ql.metadata.HiveException: UDFReflect evaluate
at
org.apache.hadoop.hive.ql.udf.generic.GenericUDFReflect.evaluate(GenericUDFReflect.java:107)
at
org.apache.hadoop.hive.ql.exec.ExprNodeGenericFuncEvaluator._evaluate(ExprNodeGenericFuncEvaluator.java:185)
at
org.apache.hadoop.hive.ql.exec.ExprNodeEvaluator.evaluate(ExprNodeEvaluator.java:77)
at
org.apache.hadoop.hive.ql.exec.ExprNodeEvaluator.evaluate(ExprNodeEvaluator.java:65)
at
org.apache.hadoop.hive.ql.exec.SelectOperator.processOp(SelectOperator.java:77)
at org.apache.hadoop.hive.ql.exec.Operator.forward(Operator.java:815)
at
org.apache.hadoop.hive.ql.exec.TableScanOperator.processOp(TableScanOperator.java:95)
at
org.apache.hadoop.hive.ql.exec.FetchOperator.pushRow(FetchOperator.java:424)
at
org.apache.hadoop.hive.ql.exec.FetchOperator.pushRow(FetchOperator.java:416)
at org.apache.hadoop.hive.ql.exec.FetchTask.fetch(FetchTask.java:138)
... 13 more
Caused by: java.lang.ClassNotFoundException: com.yshi.hive.TestReflect
at java.net.URLClassLoader$1.run(URLClassLoader.java:366)
at java.net.URLClassLoader$1.run(URLClassLoader.java:355)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:354)
at java.lang.ClassLoader.loadClass(ClassLoader.java:425)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:308)
at java.lang.ClassLoader.loadClass(ClassLoader.java:358)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Class.java:190)
at
org.apache.hadoop.hive.ql.udf.generic.GenericUDFReflect.evaluate(GenericUDFReflect.java:105)
... 22 more
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