cassandra-commits mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "T Jake Luciani (Commented) (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (CASSANDRA-3264) Add wide row paging for ColumnFamilyInputFormat and ColumnFamilyOutputFormat
Date Tue, 27 Sep 2011 14:11:11 GMT

    [ https://issues.apache.org/jira/browse/CASSANDRA-3264?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13115520#comment-13115520
] 

T Jake Luciani commented on CASSANDRA-3264:
-------------------------------------------

The MR would get multiple rows rather than one big one.
                
> Add wide row paging for ColumnFamilyInputFormat and ColumnFamilyOutputFormat
> ----------------------------------------------------------------------------
>
>                 Key: CASSANDRA-3264
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-3264
>             Project: Cassandra
>          Issue Type: Improvement
>          Components: Hadoop
>            Reporter: T Jake Luciani
>              Labels: lhf
>             Fix For: 0.8.7
>
>
> Hadoop input/output formats currently can OOM on wide rows.
> We can add a new option to the ConfigHelper like columnPagingSize with a default of Integer.MAX_VALUE.
> The input format would page the row internally rather than pull it over at once.
> The output format could also use this to avoid sending huge rows over at once.

--
This message is automatically generated by JIRA.
If you think it was sent incorrectly, please contact your JIRA administrators: https://issues.apache.org/jira/secure/ContactAdministrators!default.jspa
For more information on JIRA, see: http://www.atlassian.com/software/jira

        

Mime
View raw message