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From "Dmitry Tolpeko (JIRA)" <j...@apache.org>
Subject [jira] [Resolved] (HIVE-17024) HPL/SQL: CLI fails to exit after NPE using embedded connection
Date Tue, 29 Aug 2017 17:39:00 GMT

     [ https://issues.apache.org/jira/browse/HIVE-17024?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Dmitry Tolpeko resolved HIVE-17024.
-----------------------------------
    Resolution: Resolved

> HPL/SQL: CLI fails to exit after NPE using embedded connection
> --------------------------------------------------------------
>
>                 Key: HIVE-17024
>                 URL: https://issues.apache.org/jira/browse/HIVE-17024
>             Project: Hive
>          Issue Type: Bug
>          Components: hpl/sql
>            Reporter: Carter Shanklin
>            Assignee: Dmitry Tolpeko
>            Priority: Critical
>
> This bug is part of a series of issues and surprising behavior I encountered writing
a reporting script that would aggregate values and give rows different classifications based
on an the aggregate. Addressing some or all of these issues would make HPL/SQL more accessible
to newcomers.
> This happened during the error reported in XXX (bug TBD)
> Script is this:
> create table if not exists test1(col1 integer);
> create table if not exists test2(col1 double);
> create table if not exists test3(col1 decimal(10, 4));
> create table if not exists test4(col1 string);
> create table if not exists test5(col1 varchar(20));
> Output is this:
> [vagrant@trunk hplsql]$ hplsql -f temp3.sql
> SLF4J: Class path contains multiple SLF4J bindings.
> SLF4J: Found binding in [jar:file:/home/vagrant/hivedist/apache-hive-3.0.0-SNAPSHOT-bin/lib/log4j-slf4j-impl-2.6.2.jar!/org/slf4j/impl/StaticLoggerBinder.class]
> SLF4J: Found binding in [jar:file:/usr/hdp/2.6.1.0-128/hadoop/lib/slf4j-log4j12-1.7.10.jar!/org/slf4j/impl/StaticLoggerBinder.class]
> SLF4J: See http://www.slf4j.org/codes.html#multiple_bindings for an explanation.
> SLF4J: Actual binding is of type [org.apache.logging.slf4j.Log4jLoggerFactory]
> Open connection: jdbc:hive2:// (5.83 sec)
> Starting query
> OK
> Query executed successfully (2.31 sec)
> Exception in thread "main" java.lang.NullPointerException
>         at org.apache.hive.hplsql.Exec.evalPop(Exec.java:2398)
>         at org.apache.hive.hplsql.Stmt.createTableDefinition(Stmt.java:169)
>         at org.apache.hive.hplsql.Stmt.createTable(Stmt.java:142)
>         at org.apache.hive.hplsql.Exec.visitCreate_table_stmt(Exec.java:1366)
>         at org.apache.hive.hplsql.Exec.visitCreate_table_stmt(Exec.java:52)
>         at org.apache.hive.hplsql.HplsqlParser$Create_table_stmtContext.accept(HplsqlParser.java:4198)
>         at org.antlr.v4.runtime.tree.AbstractParseTreeVisitor.visitChildren(AbstractParseTreeVisitor.java:70)
>         at org.apache.hive.hplsql.Exec.visitStmt(Exec.java:1013)
>         at org.apache.hive.hplsql.Exec.visitStmt(Exec.java:52)
>         at org.apache.hive.hplsql.HplsqlParser$StmtContext.accept(HplsqlParser.java:1018)
>         at org.antlr.v4.runtime.tree.AbstractParseTreeVisitor.visitChildren(AbstractParseTreeVisitor.java:70)
>         at org.apache.hive.hplsql.HplsqlBaseVisitor.visitBlock(HplsqlBaseVisitor.java:28)
>         at org.apache.hive.hplsql.HplsqlParser$BlockContext.accept(HplsqlParser.java:452)
>         at org.antlr.v4.runtime.tree.AbstractParseTreeVisitor.visitChildren(AbstractParseTreeVisitor.java:70)
>         at org.apache.hive.hplsql.Exec.visitProgram(Exec.java:920)
>         at org.apache.hive.hplsql.Exec.visitProgram(Exec.java:52)
>         at org.apache.hive.hplsql.HplsqlParser$ProgramContext.accept(HplsqlParser.java:393)
>         at org.antlr.v4.runtime.tree.AbstractParseTreeVisitor.visit(AbstractParseTreeVisitor.java:42)
>         at org.apache.hive.hplsql.Exec.run(Exec.java:775)
>         at org.apache.hive.hplsql.Exec.run(Exec.java:751)
>         at org.apache.hive.hplsql.Hplsql.main(Hplsql.java:23)
>         at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
>         at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
>         at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
>         at java.lang.reflect.Method.invoke(Method.java:498)
>         at org.apache.hadoop.util.RunJar.run(RunJar.java:233)
>         at org.apache.hadoop.util.RunJar.main(RunJar.java:148)
> I attached a jstack.
> When I use a Hiveserver2 connection instead, I get an NPE but it doesn't hang (at least
not on the client side)
> Version = 3.0.0-SNAPSHOT r71f52d8ad512904b3f2c4f04fe39a33f2834f1f2



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