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From "Jonathan Ellis (Commented) (JIRA)" <>
Subject [jira] [Commented] (CASSANDRA-3469) More fine-grained request statistics
Date Fri, 13 Jan 2012 16:31:39 GMT


Jonathan Ellis commented on CASSANDRA-3469:

Maybe we should just do this as the "tracing sampling" I proposed for CASSANDRA-1123.
> More fine-grained request statistics
> ------------------------------------
>                 Key: CASSANDRA-3469
>                 URL:
>             Project: Cassandra
>          Issue Type: New Feature
>          Components: Core
>            Reporter: Jonathan Ellis
>            Assignee: Yuki Morishita
>            Priority: Minor
>             Fix For: 1.2
> It would be useful to split the CFS stats up by query type.  slice vs named vs range
vs index, to start with (right now we don't track range scans at all), but also at the "prepared
statement" level as it were:
> {{SELECT x FROM foo WHERE key = ?}} would be one query no matter what the ? is, but {{SELECT
y FROM foo WHERE key = ?}} would be different.  {{SELECT x..y FROM foo WHERE key = ?}} would
be another, as would {{SELECT x FROM foo WHERE key = ? AND bar= ?}}.  (But {{SELECT x FROM
foo WHERE bar = ? AND key = ?}} would be identical to the former, of course.)

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