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Posted to dev@hive.apache.org by "Namit Jain (JIRA)" <ji...@apache.org> on 2012/07/31 07:50:38 UTC
[jira] [Comment Edited] (HIVE-3153) Release codecs and output
streams between flushes of RCFile
[ https://issues.apache.org/jira/browse/HIVE-3153?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13425544#comment-13425544 ]
Namit Jain edited comment on HIVE-3153 at 7/31/12 5:48 AM:
-----------------------------------------------------------
@Owen/@Ashutosh,
Does this change the format of the file at all ?
Are there any backward compatibility issues ?
was (Author: namit):
@Owen,
Does this change the format of the file at all ?
Are there any backward compatibility issues ?
> Release codecs and output streams between flushes of RCFile
> -----------------------------------------------------------
>
> Key: HIVE-3153
> URL: https://issues.apache.org/jira/browse/HIVE-3153
> Project: Hive
> Issue Type: Improvement
> Components: Compression
> Reporter: Owen O'Malley
> Assignee: Owen O'Malley
> Attachments: hive-3153.patch
>
>
> Currently, RCFile writer holds a compression codec per a file and a compression output stream per a column. Especially for queries that use dynamic partitions this quickly consumes a lot of memory.
> I'd like flushRecords to get a codec from the pool and create the compression output stream in flushRecords.
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