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Date: Wed, 27 Sep 2017 21:12:00 +0000 (UTC)
From: "Aihua Xu (JIRA)" <jira@apache.org>
To: issues@hive.apache.org
Message-ID: <JIRA.13105568.1506546688000.219766.1506546720711@Atlassian.JIRA>
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References: <JIRA.13105568.1506546688000@Atlassian.JIRA> <JIRA.13105568.1506546688692@jira-lw-us.apache.org>
Subject: [jira] [Assigned] (HIVE-17624) MapredLocakTask running in separate
 JVM could throw ClassNotFoundException
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archived-at: Wed, 27 Sep 2017 21:12:06 -0000


     [ https://issues.apache.org/jira/browse/HIVE-17624?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Aihua Xu reassigned HIVE-17624:
-------------------------------


> 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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