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Posted to commits@cassandra.apache.org by "Brandon Williams (JIRA)" <ji...@apache.org> on 2013/10/07 22:32:42 UTC
[jira] [Commented] (CASSANDRA-6102) CassandraStorage broken for
bigints and ints
[ https://issues.apache.org/jira/browse/CASSANDRA-6102?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13788529#comment-13788529 ]
Brandon Williams commented on CASSANDRA-6102:
---------------------------------------------
This part:
{noformat}
+ // Don't want to create another TBase class, so use CfDef.populate_io_cache_on_flush
+ // to store flag of compact storage cql table.
+ if (cql3Table && !(parseType(cfDef.comparator_type) instanceof AbstractCompositeType))
+ cfDef.setPopulate_io_cache_on_flush(true);
+
+ // Don't want to create another TBase class, so use CfDef.replicate_on_write
+ // to store flag of cql table.
+ if (cql3Table)
+ cfDef.setReplicate_on_write(true);
{noformat}
Feels like a hack that is going to bite us down the road when those options really do get removed.
> CassandraStorage broken for bigints and ints
> --------------------------------------------
>
> Key: CASSANDRA-6102
> URL: https://issues.apache.org/jira/browse/CASSANDRA-6102
> Project: Cassandra
> Issue Type: Bug
> Components: Hadoop
> Environment: Cassandra 1.2.9 & 1.2.10, Pig 0.11.1, OSX 10.8.x
> Reporter: Janne Jalkanen
> Assignee: Alex Liu
> Attachments: 6102-1.2-branch.txt
>
>
> I am seeing something rather strange in the way Cass 1.2 + Pig seem to handle integer values.
> Setup: Cassandra 1.2.10, OSX 10.8, JDK 1.7u40, Pig 0.11.1. Single node for testing this.
> First a table:
> {noformat}
> > CREATE TABLE testc (
> key text PRIMARY KEY,
> ivalue int,
> svalue text,
> value bigint
> ) WITH COMPACT STORAGE;
> > insert into testc (key,ivalue,svalue,value) values ('foo',10,'bar',65);
> > select * from testc;
> key | ivalue | svalue | value
> -----+--------+--------+-------
> foo | 10 | bar | 65
> {noformat}
> For my Pig setup, I then use libraries from different C* versions to actually talk to my database (which stays on 1.2.10 all the time).
> Cassandra 1.0.12 (using cassandra_storage.jar):
> {noformat}
> testc = LOAD 'cassandra://keyspace/testc' USING CassandraStorage();
> dump testc
> (foo,(svalue,bar),(ivalue,10),(value,65),{})
> {noformat}
> Cassandra 1.1.10:
> {noformat}
> testc = LOAD 'cassandra://keyspace/testc' USING CassandraStorage();
> dump testc
> (foo,(svalue,bar),(ivalue,10),(value,65),{})
> {noformat}
> Cassandra 1.2.10:
> {noformat}
> (testc = LOAD 'cassandra://keyspace/testc' USING CassandraStorage();
> dump testc
> foo,{(ivalue,
> ),(svalue,bar),(value,A)})
> {noformat}
> To me it appears that ints and bigints are interpreted as ascii values in cass 1.2.10. Did something change for CassandraStorage, is there a regression, or am I doing something wrong? Quick perusal of the JIRA didn't reveal anything that I could directly pin on this.
> Note that using compact storage does not seem to affect the issue, though it obviously changes the resulting pig format.
> In addition, trying to use Pygmalion
> {noformat}
> tf = foreach testc generate key, flatten(FromCassandraBag('ivalue,svalue,value',columns)) as (ivalue:int,svalue:chararray,lvalue:long);
> dump tf
> (foo,
> ,bar,A)
> {noformat}
> So no help there. Explicitly casting the values to (long) or (int) just results in a ClassCastException.
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