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In-Reply-To: <DEE3EF59-3FED-4DC2-B8D4-7FB1858A3814@digitalenvoy.net>
References: <DEE3EF59-3FED-4DC2-B8D4-7FB1858A3814@digitalenvoy.net>
Date: Sun, 3 Aug 2014 15:50:41 +0530
Message-ID: 
 <CAD7rktdCfzETx-iTz1ckJRU1RDEAQG2qr6VB_qKdq88ikuMd+Q@mail.gmail.com>
Subject: Re: UDF with dependent JARs
From: Malligarjunan S <malligarjunan@gmail.com>
To: user@hive.apache.org
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--047d7bd9148281655f04ffb6f955
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Hello Tia,

Try to use fat jar.
If you are using maven, mvn assembly:single will generate the fat jar,
which includes all necessary jars in a single jar file.

Regards,
Sankar S


On Sat, Aug 2, 2014 at 5:17 PM, Brian Jeltema <
brian.jeltema@digitalenvoy.net> wrote:

> I've written a small UDF and placed it in a JAR (a.jar).
>
> The UDF has a dependency on a class in another JAR (b.jar).
>
> in Hive, I do:
>
>   add jar a.jar;
>   add jar b.jar;
>   create temporary function .....;
>
> but when I execute the UDF, the dependency in b.jar is not found
> (NoClassDefFoundError).
> If I create a single JAR that contains the UDF and it's dependencies, the
> function works.
> Do all of the classes required for a UDF have to be supplied in a single
> JAR file?
>
> TIA
> Brian

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Content-Type: text/html; charset=UTF-8
Content-Transfer-Encoding: quoted-printable

<div dir=3D"ltr"><div><div><div><div>Hello Tia,<br><br></div>Try to use fat=
 jar.<br></div>If you are using maven, mvn assembly:single will generate th=
e fat jar, which includes all necessary jars in a single jar file.<br><br>
</div>Regards,<br></div>Sankar S<br></div><div class=3D"gmail_extra"><br><b=
r><div class=3D"gmail_quote">On Sat, Aug 2, 2014 at 5:17 PM, Brian Jeltema =
<span dir=3D"ltr">&lt;<a href=3D"mailto:brian.jeltema@digitalenvoy.net" tar=
get=3D"_blank">brian.jeltema@digitalenvoy.net</a>&gt;</span> wrote:<br>
<blockquote class=3D"gmail_quote" style=3D"margin:0 0 0 .8ex;border-left:1p=
x #ccc solid;padding-left:1ex">I&#39;ve written a small UDF and placed it i=
n a JAR (a.jar).<br>
<br>
The UDF has a dependency on a class in another JAR (b.jar).<br>
<br>
in Hive, I do:<br>
<br>
=C2=A0 add jar a.jar;<br>
=C2=A0 add jar b.jar;<br>
=C2=A0 create temporary function .....;<br>
<br>
but when I execute the UDF, the dependency in b.jar is not found (NoClassDe=
fFoundError).<br>
If I create a single JAR that contains the UDF and it&#39;s dependencies, t=
he function works.<br>
Do all of the classes required for a UDF have to be supplied in a single JA=
R file?<br>
<br>
TIA<br>
<span class=3D"HOEnZb"><font color=3D"#888888">Brian</font></span></blockqu=
ote></div><br></div>

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