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Date: Thu, 8 Nov 2012 11:47:15 +0530
Message-ID: 
 <CAHDt4jWdZFkJnyevXZU9ZR1EHQq_9x+Gxd0RxJDkYinSv1MVcA@mail.gmail.com>
Subject: Re: Ubuntu 12.04 - Which JDK?
From: Sanjeev Verma <sanjeev.x.verma@gmail.com>
To: user@hadoop.apache.org
Cc: "ac@hsk.hk" <ac@hsk.hk>
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AFAIK, openjdk can be used to run hadoop. Why do you want to build hadoop
from source? Get precompiled binaries and you will be ok.

Also, you can install sun/oracle jdk on ubuntu. Just google for
instructions, u will find plenty, like here -
http://www.ubuntututorials.com/install-oracle-java-jdk-7-ubuntu-12-04/.
These are for jdk 7, but you can follow the same to install jdk 6.

Enjoy!
On Nov 8, 2012 11:30 AM, "ac@hsk.hk" <ac@hsk.hk> wrote:

> Hi,
>
> I am planning to use Ubuntu 12.04, from
> http://wiki.apache.org/hadoop/HadoopJavaVersions, about OpenJDK
>
> "Note*: OpenJDK6 has some open bugs w.r.t handling of generics... so
> OpenJDK cannot be used to compile hadoop mapreduce code in branch-0.23 and
> beyond, please use other JDKs."
>
> Is it OK to use OpenJDK 7 in Ubuntu 12.04?
>
> Thanks
>
>

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<p>AFAIK, openjdk can be used to run hadoop. Why do you want to build hadoo=
p from source? Get precompiled binaries and you will be ok.</p>
<p>Also, you can install sun/oracle jdk on ubuntu. Just google for instruct=
ions, u will find plenty, like here - <br>
<a href=3D"http://www.ubuntututorials.com/install-oracle-java-jdk-7-ubuntu-=
12-04/">http://www.ubuntututorials.com/install-oracle-java-jdk-7-ubuntu-12-=
04/</a>. These are for jdk 7, but you can follow the same to install jdk 6.=
</p>

<p>Enjoy!</p>
<div class=3D"gmail_quote">On Nov 8, 2012 11:30 AM, &quot;<a href=3D"mailto=
:ac@hsk.hk">ac@hsk.hk</a>&quot; &lt;<a href=3D"mailto:ac@hsk.hk">ac@hsk.hk<=
/a>&gt; wrote:<br type=3D"attribution"><blockquote class=3D"gmail_quote" st=
yle=3D"margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div style=3D"word-wrap:break-word">Hi,<div><br></div><div>I am planning to=
 use Ubuntu 12.04, from=A0<a href=3D"http://wiki.apache.org/hadoop/HadoopJa=
vaVersions" target=3D"_blank">http://wiki.apache.org/hadoop/HadoopJavaVersi=
ons</a>, about OpenJDK=A0</div>
<div><br></div><div>&quot;<span style=3D"text-indent:0px;letter-spacing:nor=
mal;font-variant:normal;text-align:start;font-style:normal;display:inline!i=
mportant;font-weight:normal;float:none;line-height:normal;text-transform:no=
ne;font-size:16px;white-space:normal;font-family:sans-serif;word-spacing:0p=
x">Note*: OpenJDK6 has some open bugs w.r.t handling of generics...</span><=
span style=3D"text-indent:0px;letter-spacing:normal;font-variant:normal;tex=
t-align:start;font-style:normal;display:inline!important;font-weight:normal=
;float:none;line-height:normal;text-transform:none;font-size:16px;white-spa=
ce:normal;font-family:sans-serif;word-spacing:0px">=A0so OpenJDK cannot be =
used to compile hadoop mapreduce code in branch-0.23 and beyond, please use=
 other JDKs.&quot;</span><br>
<div><div><br></div><div>Is it OK to use OpenJDK 7 in Ubuntu 12.04?</div><d=
iv><br></div><div>Thanks</div><div><br></div></div></div></div></blockquote=
></div>

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