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Posted to commits@cassandra.apache.org by "Sylvain Lebresne (JIRA)" <ji...@apache.org> on 2015/12/04 17:58:11 UTC

[jira] [Updated] (CASSANDRA-10358) Allow CQLSSTableWriter.Builder to use custom AbstractSSTableSimpleWriter

     [ https://issues.apache.org/jira/browse/CASSANDRA-10358?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Sylvain Lebresne updated CASSANDRA-10358:
-----------------------------------------
    Reviewer: Sylvain Lebresne

> Allow CQLSSTableWriter.Builder to use custom AbstractSSTableSimpleWriter 
> -------------------------------------------------------------------------
>
>                 Key: CASSANDRA-10358
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-10358
>             Project: Cassandra
>          Issue Type: Improvement
>            Reporter: Andre Turgeon
>            Priority: Minor
>         Attachments: SSTableWriterCreationStrategy.patch, patch.txt
>
>
> I've created a patch for your consideration. 
> This change to CQLSSTableWriter allows for a custom AbstractSSTableSimpleWriter to be specified. 
> I needed this for a bulkload process I wrote. I believe the change would be beneficial for other people as well. 
> Below are the reasons I needed a custom implementation of AbstractSSTableSimpleWriter:
> 1) The available implementations of AbstractSSTableSimpleWriter do not provide a way to specify the filename (or rather revision) of the sstable. I needed to control the name because my bulkload process write sstables in parallel (on multiple machines) and I wish to avoid name collisions.
> 2) I discovered a problem with SSTableSimpleUnsortedWriter where it creates invalid level-compaction-style sstables; It allows a partition to span 2 sstables which violates the "no overlap of token ranges" constraint of level compaction.   



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