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 <CANZjK9jfm9XsbKzkGuyoyOQ+aAQOyw8kyTdhUUUQ_AZN1VvmAw@mail.gmail.com>
	<505D48FE.9000108@mebigfatguy.com>
Date: Sat, 22 Sep 2012 12:50:42 -0700
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 <CANZjK9gboixXAbTUDvTY_k4VPb1yzPWMW_2b3yXY8Dx9WoMtHw@mail.gmail.com>
Subject: Re: Using Cassandra BulkOuputFormat With newer versions of Hadoop
 (.23+)
From: Juan Valencia <jvalencia@sharethis.com>
To: user@cassandra.apache.org
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I'm not sure, but I think 1.0.3 is the wrong branch:
http://f.cl.ly/items/2z1q1k3Q402L2z061S3m/Apache%20Hadoop%20Versions.png
I need the branch that goes down .22 to .23
The problem is
"You lose binary backward compatibility....
Exception in thread "main" java.lang.IncompatibleClassChangeError: Found
interface org.apache.hadoop.mapreduce.JobContext, but class was expected
at
org.apache.cassandra.hadoop.BulkOutputFormat.checkOutputSpecs(BulkOutputFormat.java:42)"

On Fri, Sep 21, 2012 at 10:13 PM, Dave Brosius <dbrosius@mebigfatguy.com>wrote:

> I swapped in hadoop-core-1.0.3.jar and rebuilt cassandra, without issues.
> What problems where you having?
>
>
>
> On 09/21/2012 07:40 PM, Juan Valencia wrote:
>
>>
>> I can't seem to get Bulk Loading to Work in newer versions of Hadoop.
>> since they switched JobContext from a class to an interface
>> You lose binary backward compatibility....
>> Exception in thread "main" java.lang.**IncompatibleClassChangeError:
>> Found interface org.apache.hadoop.mapreduce.**JobContext, but class was
>> expected
>> at org.apache.cassandra.hadoop.**BulkOutputFormat.**checkOutputSpecs(**
>> BulkOutputFormat.java:42)
>>
>> I tried recompiling against the newer Hadoop, but things got messy fast.
>>  Has anyone done this?
>>
>
>


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Learn More:  SQI (Social Quality Index) - A Universal Measure of Social
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<div>I&#39;m not sure, but I think 1.0.3 is the wrong branch:</div><a href=
=3D"http://f.cl.ly/items/2z1q1k3Q402L2z061S3m/Apache%20Hadoop%20Versions.pn=
g">http://f.cl.ly/items/2z1q1k3Q402L2z061S3m/Apache%20Hadoop%20Versions.png=
</a><div>
I need the branch that goes down .22 to .23=A0</div><div>The problem is</di=
v><div>&quot;You lose binary backward compatibility....<div>Exception in th=
read &quot;main&quot; java.lang.IncompatibleClassChangeError: Found interfa=
ce org.apache.hadoop.mapreduce.JobContext, but class was expected</div>
<div>at org.apache.cassandra.hadoop.BulkOutputFormat.checkOutputSpecs(BulkO=
utputFormat.java:42)&quot;</div><br><div class=3D"gmail_quote">On Fri, Sep =
21, 2012 at 10:13 PM, Dave Brosius <span dir=3D"ltr">&lt;<a href=3D"mailto:=
dbrosius@mebigfatguy.com" target=3D"_blank">dbrosius@mebigfatguy.com</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 swapped in hadoop-core-1.0.3.jar and rebui=
lt cassandra, without issues. What problems where you having?<div class=3D"=
HOEnZb">
<div class=3D"h5"><br>
<br>
<br>
On 09/21/2012 07:40 PM, Juan Valencia wrote:<br>
<blockquote class=3D"gmail_quote" style=3D"margin:0 0 0 .8ex;border-left:1p=
x #ccc solid;padding-left:1ex">
<br>
I can&#39;t seem to get Bulk Loading to Work in newer versions of Hadoop.<b=
r>
since they switched JobContext from a class to an interface<br>
You lose binary backward compatibility....<br>
Exception in thread &quot;main&quot; java.lang.<u></u>IncompatibleClassChan=
geError: Found interface org.apache.hadoop.mapreduce.<u></u>JobContext, but=
 class was expected<br>
at org.apache.cassandra.hadoop.<u></u>BulkOutputFormat.<u></u>checkOutputSp=
ecs(<u></u>BulkOutputFormat.java:42)<br>
<br>
I tried recompiling against the newer Hadoop, but things got messy fast. =
=A0Has anyone done this? <br>
</blockquote>
<br>
</div></div></blockquote></div><br><br clear=3D"all"><div><br></div>-- <br>=
<div><br></div><div>Learn More: =A0SQI (Social Quality Index) - A Universal=
 Measure of Social Quality</div><br>
</div>

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