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Posted to commits@cassandra.apache.org by "Jonathan Ellis (JIRA)" <ji...@apache.org> on 2014/09/22 20:43:34 UTC

[jira] [Commented] (CASSANDRA-7987) Better defaults for CQL tables with clustering keys

    [ https://issues.apache.org/jira/browse/CASSANDRA-7987?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14143606#comment-14143606 ] 

Jonathan Ellis commented on CASSANDRA-7987:
-------------------------------------------

Is that really a good rule of thumb?  E.g. if my slice size is smaller than a single sstable's worth then LCS is a lot of extra work for little gain.

> Better defaults for CQL tables with clustering keys
> ---------------------------------------------------
>
>                 Key: CASSANDRA-7987
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-7987
>             Project: Cassandra
>          Issue Type: Improvement
>            Reporter: T Jake Luciani
>            Priority: Minor
>              Labels: lhf
>             Fix For: 3.0
>
>
> We currently default to STCS regardless.  If a user creates a table with clustering keys (maybe specifically types with likely high cardinality?)  We should set compaction to LCS.



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