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Date: Wed, 15 Feb 2012 11:52:42 -0800
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Subject: Running hive in eclipse
From: Aaron Sun <aaron.sun82@gmail.com>
To: dev@hive.apache.org
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Hi Team,

I am trying to run and debug hive in eclipse. I checked out release-0.8.0
1215012 from the SVN repository and built the project with thrift and fb303
library installed correctly. The building process returned "Build
Successfully".

Then I tried to launch the cli by running CliDriver.java as a Java
Application, and it returned errors as

"""
Exception in thread "main" java.lang.RuntimeException: Failed to load Hive
builtin functions
at
org.apache.hadoop.hive.ql.session.SessionState.<init>(SessionState.java:190)
at
org.apache.hadoop.hive.cli.CliSessionState.<init>(CliSessionState.java:81)
at org.apache.hadoop.hive.cli.CliDriver.run(CliDriver.java:576)
at org.apache.hadoop.hive.cli.CliDriver.main(CliDriver.java:554)
Caused by: java.util.zip.ZipException: error in opening zip file
at java.util.zip.ZipFile.open(Native Method)
at java.util.zip.ZipFile.<init>(ZipFile.java:131)
at java.util.jar.JarFile.<init>(JarFile.java:150)
at java.util.jar.JarFile.<init>(JarFile.java:87)
at sun.net.www.protocol.jar.URLJarFile.<init>(URLJarFile.java:90)
at sun.net.www.protocol.jar.URLJarFile.getJarFile(URLJarFile.java:66)
at sun.net.www.protocol.jar.JarFileFactory.get(JarFileFactory.java:71)
at
sun.net.www.protocol.jar.JarURLConnection.connect(JarURLConnection.java:122)
at
sun.net.www.protocol.jar.JarURLConnection.getInputStream(JarURLConnection.java:150)
at java.net.URL.openStream(URL.java:1029)
at
org.apache.hadoop.hive.ql.exec.FunctionRegistry.registerFunctionsFromPluginJar(FunctionRegistry.java:1194)
at
org.apache.hadoop.hive.ql.session.SessionState.<init>(SessionState.java:187)
... 3 more
"""
I looked over the build.xml under ./builtins directory, and noticed that
the compile and jar targets are both commented, and no jar is generated for
builtins

<target name="compile" depends="init, setup">
    <echo message="Project: ${ant.project.name}"/>
  <!-- defer compilation until package phase -->
</target>

<target name="jar" depends="init">
    <echo message="Project: ${ant.project.name}"/>
    <!-- defer compilation until package phase -->
</target>

I then manually changed the build.xml for "compile" part as follows and
rebuilt the project:
  <target name="compile" depends="init, setup">
    <echo message="Project: ${ant.project.name}"/>
  <javac
       encoding="${build.encoding}"
       srcdir="${src.dir}"
       includes="**/*.java"
       destdir="${build.classes}"
       debug="${javac.debug}"
       deprecation="${javac.deprecation}"
       includeantruntime="false">
        <compilerarg line="${javac.args} ${javac.args.warnings}" />
        <classpath refid="classpath"/>
  </javac>
  </target>

Now the 'hive-buitins-0.8.0-SNAPSHOT.jar' is under the .build/buitins
directory. However, I am still getting the same error message as "Failed to
load Hive builtin functions". Could someone kindly let me know what is the
problem and how I should run cli correctly in eclipse?

Thanks
Aaron

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