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Date: Mon, 6 May 2013 13:02:17 +0000 (UTC)
From: "Cyril Scetbon (JIRA)" <jira@apache.org>
To: commits@cassandra.apache.org
Message-ID: <JIRA.12597769.1341582620241.273315.1367845337026@arcas>
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Subject: [jira] [Comment Edited] (CASSANDRA-4421) Support cql3 table
 definitions in Hadoop InputFormat
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    [ https://issues.apache.org/jira/browse/CASSANDRA-4421?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13649721#comment-13649721 ] 

Cyril Scetbon edited comment on CASSANDRA-4421 at 5/6/13 1:01 PM:
------------------------------------------------------------------

I'm talking about the patches provided by Alex Liu. If it works (not tested and it's part of the question) can we use it until it's more efficient with the use of native paging ? Do I make a bad supposition about the lack of performance of this paging strategy ?
                
      was (Author: cscetbon):
    I'm talking about the patches provided by Alex Liu. If it works (not tested and it's part of the question) can we use it until it's more efficient with the use of native paging ?
                  
> Support cql3 table definitions in Hadoop InputFormat
> ----------------------------------------------------
>
>                 Key: CASSANDRA-4421
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-4421
>             Project: Cassandra
>          Issue Type: Improvement
>          Components: API
>    Affects Versions: 1.1.0
>         Environment: Debian Squeeze
>            Reporter: bert Passek
>              Labels: cql3
>             Fix For: 1.2.5
>
>
> Hello,
> i faced a bug while writing composite column values and following validation on server side.
> This is the setup for reproduction:
> 1. create a keyspace
> create keyspace test with strategy_class = 'SimpleStrategy' and strategy_options:replication_factor = 1;
> 2. create a cf via cql (3.0)
> create table test1 (
>     a int,
>     b int,
>     c int,
>     primary key (a, b)
> );
> If i have a look at the schema in cli i noticed that there is no column metadata for columns not part of primary key.
> create column family test1
>   with column_type = 'Standard'
>   and comparator = 'CompositeType(org.apache.cassandra.db.marshal.Int32Type,org.apache.cassandra.db.marshal.UTF8Type)'
>   and default_validation_class = 'UTF8Type'
>   and key_validation_class = 'Int32Type'
>   and read_repair_chance = 0.1
>   and dclocal_read_repair_chance = 0.0
>   and gc_grace = 864000
>   and min_compaction_threshold = 4
>   and max_compaction_threshold = 32
>   and replicate_on_write = true
>   and compaction_strategy = 'org.apache.cassandra.db.compaction.SizeTieredCompactionStrategy'
>   and caching = 'KEYS_ONLY'
>   and compression_options = {'sstable_compression' : 'org.apache.cassandra.io.compress.SnappyCompressor'};
> Please notice the default validation class: UTF8Type
> Now i would like to insert value > 127 via cassandra client (no cql, part of mr-jobs). Have a look at the attachement.
> Batch mutate fails:
> InvalidRequestException(why:(String didn't validate.) [test][test1][1:c] failed validation)
> A validator for column value is fetched in ThriftValidation::validateColumnData which returns always the default validator which is UTF8Type as described above (The ColumnDefinition for given column name "c" is always null)
> In UTF8Type there is a check for
> if (b > 127)
>    return false;
> Anyway, maybe i'm doing something wrong, but i used cql 3.0 for table creation. I assigned data types to all columns, but i can not set values for a composite column because the default validation class is used.
> I think the schema should know the correct validator even for composite columns. The usage of the default validation class does not make sense.
> Best Regards 
> Bert Passek

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