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From "Cyril Scetbon (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (CASSANDRA-4421) Support cql3 table definitions in Hadoop InputFormat
Date Wed, 08 May 2013 10:29:18 GMT

    [ https://issues.apache.org/jira/browse/CASSANDRA-4421?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13651767#comment-13651767
] 

Cyril Scetbon commented on CASSANDRA-4421:
------------------------------------------

[~alexliu68] Oh, I was thinking that only thrift was affected by the CQL3 issue and that it
was why pig was not working. If Pig needs to be updated too (as you say), I'll wait for that
with hope that it will come soon… Can you change the status of [CASSANDRA-5234|https://issues.apache.org/jira/browse/CASSANDRA-5234]
otherwise it won't be assigned unless there is another JIRA for that ?
[~jbellis] I thought it was ONE whole block
                
> 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
>
>         Attachments: 4421-1.txt, 4421-2.txt, 4421.txt
>
>
> 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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