[jira] [Created] (HIVE-17624) MapredLocakTask running in separate JVM could throw ClassNotFoundException

["Aihua Xu (JIRA)" <ji...@apache.org>]

Aihua Xu created HIVE-17624:
-------------------------------

             Summary: MapredLocakTask running in separate JVM could throw ClassNotFoundException 
                 Key: HIVE-17624
                 URL: https://issues.apache.org/jira/browse/HIVE-17624
             Project: Hive
          Issue Type: Bug
          Components: Query Planning
    Affects Versions: 2.1.1
            Reporter: Aihua Xu
            Assignee: Aihua Xu


{noformat}
set hive.auto.convert.join=true;
set hive.auto.convert.join.use.nonstaged=false;

add jar hive-hcatalog-core.jar;

drop table if exists t1;
CREATE TABLE t1 (a string, b string)
ROW FORMAT SERDE 'org.apache.hive.hcatalog.data.JsonSerDe';

LOAD DATA LOCAL INPATH "data/files/sample.json" INTO TABLE t1;
select * from t1 l join t1 r on l.a=r.a;
{noformat}

The join will use a MapJoin which uses MapredLocalTask in a separate JVM to load the table into a Hashmap. But hive doesn't pass added jar to the classpath in such JVM so the following exception is thrown.

{noformat}
org.apache.hadoop.hive.ql.metadata.HiveException: Failed with exception java.lang.ClassNotFoundException: org.apache.hive.hcatalog.data.JsonSerDejava.lang.RuntimeException: java.lang.ClassNotFoundException: org.apache.hive.hcatalog.data.JsonSerDe
        at org.apache.hadoop.hive.ql.plan.TableDesc.getDeserializerClass(TableDesc.java:72)
        at org.apache.hadoop.hive.ql.plan.TableDesc.getDeserializer(TableDesc.java:92)
        at org.apache.hadoop.hive.ql.exec.FetchOperator.setupOutputObjectInspector(FetchOperator.java:564)
        at org.apache.hadoop.hive.ql.exec.FetchOperator.initialize(FetchOperator.java:172)
        at org.apache.hadoop.hive.ql.exec.FetchOperator.<init>(FetchOperator.java:140)
        at org.apache.hadoop.hive.ql.exec.FetchOperator.<init>(FetchOperator.java:127)
        at org.apache.hadoop.hive.ql.exec.mr.MapredLocalTask.initializeOperators(MapredLocalTask.java:462)
        at org.apache.hadoop.hive.ql.exec.mr.MapredLocalTask.startForward(MapredLocalTask.java:390)
        at org.apache.hadoop.hive.ql.exec.mr.MapredLocalTask.executeInProcess(MapredLocalTask.java:370)
        at org.apache.hadoop.hive.ql.exec.mr.ExecDriver.main(ExecDriver.java:756)
        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: java.lang.ClassNotFoundException: org.apache.hive.hcatalog.data.JsonSerDe
        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 java.lang.ClassLoader.loadClass(ClassLoader.java:358)
        at java.lang.Class.forName0(Native Method)
        at java.lang.Class.forName(Class.java:270)
        at org.apache.hadoop.hive.ql.plan.TableDesc.getDeserializerClass(TableDesc.java:69)
        ... 15 more

        at org.apache.hadoop.hive.ql.exec.FetchOperator.setupOutputObjectInspector(FetchOperator.java:586)
        at org.apache.hadoop.hive.ql.exec.FetchOperator.initialize(FetchOperator.java:172)
        at org.apache.hadoop.hive.ql.exec.FetchOperator.<init>(FetchOperator.java:140)
        at org.apache.hadoop.hive.ql.exec.FetchOperator.<init>(FetchOperator.java:127)
        at org.apache.hadoop.hive.ql.exec.mr.MapredLocalTask.initializeOperators(MapredLocalTask.java:462)
        at org.apache.hadoop.hive.ql.exec.mr.MapredLocalTask.startForward(MapredLocalTask.java:390)
        at org.apache.hadoop.hive.ql.exec.mr.MapredLocalTask.executeInProcess(MapredLocalTask.java:370)
        at org.apache.hadoop.hive.ql.exec.mr.ExecDriver.main(ExecDriver.java:756)
        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)
{noformat}



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