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From "Cheolsoo Park (JIRA)" <j...@apache.org>
Subject [jira] [Comment Edited] (SQOOP-524) hsqldb jar update regression
Date Fri, 27 Jul 2012 18:03:35 GMT

    [ https://issues.apache.org/jira/browse/SQOOP-524?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13424023#comment-13424023
] 

Cheolsoo Park edited comment on SQOOP-524 at 7/27/12 6:02 PM:
--------------------------------------------------------------

Hi Jarcec, I haven't confirmed this myself, so I might be wrong here.

According to Abhijeet, setting HADOOP_USER_CLASSPATH_FIRST will make the problem go away.
Then can we do the followings?
1) set HADOOP_USER_CLASSPATH_FIRST in sqoop-configure.sh or somewhere
2) put SQOOP_CLASSPATH before HADOOP_CLASSPATH

so the hsqldb jar from Sqoop is always used?
                
      was (Author: cheolsoo):
    Hi Jarcec, I haven't confirmed this myself, so I might be wrong here.

According to Abhijeet, setting HADOOP_USER_CLASSPATH_FIRST will make the . Then can we do
the followings?
1) set HADOOP_USER_CLASSPATH_FIRST in sqoop-configure.sh or somewhere
2) put SQOOP_CLASSPATH before HADOOP_CLASSPATH

so the hsqldb jar from Sqoop is always used?
                  
> hsqldb jar update regression
> ----------------------------
>
>                 Key: SQOOP-524
>                 URL: https://issues.apache.org/jira/browse/SQOOP-524
>             Project: Sqoop
>          Issue Type: Bug
>            Reporter: Abhijeet Gaikwad
>            Assignee: Abhijeet Gaikwad
>            Priority: Blocker
>             Fix For: 1.4.2
>
>
> This is due to recent update of hsqldb jar version. Updating the jar does not break the
build but it breaks the execution of every SQOOP job, as Hadoop's classpath is prepended to
Sqoop's classpath and hadoop contains previous version of hsqldb JAR.
> This is a class loading issue. hsqldb-1.8.0.10.jar from hadoop is loaded first and we
have hsqldb-2.2.8.jar specific code in sqoop.
> Steps to reproduce:
> 1. Checkout latest revision from SVN/GIT
> 2. Build - "ant -Dhadoopversion <as_per_hadoop_version_you_have>" 
> 3. Try to run sqoop with any DBMS. You get -
> Exception in thread "main" java.lang.NoSuchMethodError: org.hsqldb.DatabaseURL.parseURL(Ljava/lang/String;ZZ)Lorg/hsqldb/persist/HsqlProperties;
>         at org.hsqldb.jdbc.JDBCDriver.getConnection(Unknown Source)
>         at org.hsqldb.jdbc.JDBCDriver.connect(Unknown Source)
>         at java.sql.DriverManager.getConnection(DriverManager.java:582)
>         at java.sql.DriverManager.getConnection(DriverManager.java:185)
>         at org.apache.sqoop.manager.SqlManager.makeConnection(SqlManager.java:665)
>         at org.apache.sqoop.manager.GenericJdbcManager.getConnection(GenericJdbcManager.java:52)
>         at org.apache.sqoop.manager.SqlManager.execute(SqlManager.java:525)
>         at org.apache.sqoop.manager.SqlManager.execute(SqlManager.java:548)
>         at org.apache.sqoop.manager.SqlManager.getColumnTypesForRawQuery(SqlManager.java:191)
>         at org.apache.sqoop.manager.SqlManager.getColumnTypes(SqlManager.java:175)
>         at org.apache.sqoop.manager.ConnManager.getColumnTypes(ConnManager.java:262)
>         at org.apache.sqoop.orm.ClassWriter.getColumnTypes(ClassWriter.java:1235)
>         at org.apache.sqoop.orm.ClassWriter.generate(ClassWriter.java:1060)
>         at org.apache.sqoop.tool.CodeGenTool.generateORM(CodeGenTool.java:82)
>         at org.apache.sqoop.tool.ImportTool.importTable(ImportTool.java:390)
>         at org.apache.sqoop.tool.ImportTool.run(ImportTool.java:476)
>         at org.apache.sqoop.Sqoop.run(Sqoop.java:145)
>         at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:65)
>         at org.apache.sqoop.Sqoop.runSqoop(Sqoop.java:181)
>         at org.apache.sqoop.Sqoop.runTool(Sqoop.java:220)
>         at org.apache.sqoop.Sqoop.runTool(Sqoop.java:229)
>         at org.apache.sqoop.Sqoop.main(Sqoop.java:238)
>         at com.cloudera.sqoop.Sqoop.main(Sqoop.java:57)
> Unless, you set this on command-line:
> export HADOOP_USER_CLASSPATH_FIRST=true
> Haven't tried ahead but it should also fail when Sqoop internally triggers a Hadoop JOB.
This is just a speculation, will confirm this.

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