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Date: Tue, 9 Apr 2013 21:22:15 -0700
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 <CADStV1=Wh0sgUF=rSPub=k8UXoJhZJvGXwBMbxEuKk2OtCGdPA@mail.gmail.com>
Subject: CDH4 + Cassandra 1.2 Integration Issue
From: Gurminder Gill <gurminder_g@hotmail.com>
To: user@cassandra.apache.org
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I was able to start a MR job after patching Cassandra.Hadoop as per
CASSANDRA-5201 <https://issues.apache.org/jira/browse/CASSANDRA-5201>.

But then, ColumnFamilyRecordReader pukes within the MapTask. It is unable
to read CF definition in the sample keyspace. The CF "user" does exist.

*How can "cf_defs" below be possibly empty? Any pointers?*

*KsDef.toString() during Read Operation from within the MapTask :-*
*
*
KsDef(name:wordcount,
strategy_class:org.apache.cassandra.locator.SimpleStrategy,
strategy_options:{replication_factor=1}, *cf_defs:[]*, durable_writes:true)

*Output from cqlsh :-
*

cqlsh> describe keyspace wordcount;

CREATE KEYSPACE wordcount WITH replication = {
  'class': 'SimpleStrategy',
  'replication_factor': '1'
};

USE wordcount;

CREATE TABLE user (
  id int PRIMARY KEY,
  age int,
  fname text,
  lname text
) WITH
  bloom_filter_fp_chance=0.010000 AND
  caching='KEYS_ONLY' AND
  comment='' AND
  dclocal_read_repair_chance=0.000000 AND
  gc_grace_seconds=864000 AND
  read_repair_chance=0.100000 AND
  replicate_on_write='true' AND
  compaction={'class': 'SizeTieredCompactionStrategy'} AND
  compression={'sstable_compression': 'SnappyCompressor'};

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<div dir=3D"ltr"><div style>I was able to start a MR job after patching Cas=
sandra.Hadoop as per=A0<a id=3D"key-val" rel=3D"12629942" href=3D"https://i=
ssues.apache.org/jira/browse/CASSANDRA-5201" style=3D"background-color:tran=
sparent;font-family:Arial,FreeSans,Helvetica,sans-serif;font-size:15px;line=
-height:1.2667;color:rgb(50,108,166);text-decoration:none">CASSANDRA-5201</=
a>.</div>
<div style><br></div>But then, ColumnFamilyRecordReader pukes within the Ma=
pTask. It is unable to read CF=A0definition=A0in the sample keyspace. The C=
F &quot;user&quot; does exist.<div><br></div><div style><b>How can &quot;cf=
_defs&quot; below be possibly empty? Any pointers?</b></div>
<div style><br></div><div style><div><u>KsDef.toString()=A0during Read Oper=
ation from within the MapTask :-</u></div><div><u><br></u></div><div>KsDef(=
name:wordcount, strategy_class:org.apache.cassandra.locator.SimpleStrategy,=
 strategy_options:{replication_factor=3D1}, <b>cf_defs:[]</b>, durable_writ=
es:true)</div>
<div><br></div></div><div><u>Output from cqlsh :-<br></u></div><div><br><di=
v><div>cqlsh&gt; describe keyspace wordcount;</div><div><br></div><div>CREA=
TE KEYSPACE wordcount WITH replication =3D {</div><div>=A0 &#39;class&#39;:=
 &#39;SimpleStrategy&#39;,</div>
<div>=A0 &#39;replication_factor&#39;: &#39;1&#39;</div><div>};</div><div><=
br></div><div>USE wordcount;</div><div><br></div><div>CREATE TABLE user (</=
div><div>=A0 id int PRIMARY KEY,</div><div>=A0 age int,</div><div>=A0 fname=
 text,</div>
<div>=A0 lname text</div><div>) WITH</div><div>=A0 bloom_filter_fp_chance=
=3D0.010000 AND</div><div>=A0 caching=3D&#39;KEYS_ONLY&#39; AND</div><div>=
=A0 comment=3D&#39;&#39; AND</div><div>=A0 dclocal_read_repair_chance=3D0.0=
00000 AND</div><div>
=A0 gc_grace_seconds=3D864000 AND</div><div>=A0 read_repair_chance=3D0.1000=
00 AND</div><div>=A0 replicate_on_write=3D&#39;true&#39; AND</div><div>=A0 =
compaction=3D{&#39;class&#39;: &#39;SizeTieredCompactionStrategy&#39;} AND<=
/div><div>=A0 compression=3D{&#39;sstable_compression&#39;: &#39;SnappyComp=
ressor&#39;};</div>
</div><div><br></div><div><br></div><div><br>
</div></div></div>

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