[jira] [Updated] (CASSANDRA-2308) add tracing of cell name index effectiveness

["Jonathan Ellis (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/CASSANDRA-2308?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Jonathan Ellis updated CASSANDRA-2308:
--------------------------------------

    Assignee: Jonathan Ellis
     Summary: add tracing of cell name index effectiveness  (was: track row indexes in sstable stats)

I think we have a pretty good idea of index size from the existing row size stats, but it would be useful to include in query traces how many columns we had to deserialize post-seek.  (Probably the index deserialize too.)
                
> add tracing of cell name index effectiveness
> --------------------------------------------
>
>                 Key: CASSANDRA-2308
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-2308
>             Project: Cassandra
>          Issue Type: New Feature
>          Components: Core
>            Reporter: Jonathan Ellis
>            Assignee: Jonathan Ellis
>            Priority: Minor
>             Fix For: 2.0
>
>
> Exposing row index sizes would give us the information to tune column_index_size correctly (see CASSANDRA-2297).

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