[jira] [Updated] (CASSANDRA-3515) track tombstones skipped on read path

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

     [ https://issues.apache.org/jira/browse/CASSANDRA-3515?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Jonathan Ellis updated CASSANDRA-3515:
--------------------------------------

    Attachment: 3515.txt

Logging attached, as noted this will be more useful soon with CASSANDRA-1123.
                
> track tombstones skipped on read path
> -------------------------------------
>
>                 Key: CASSANDRA-3515
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-3515
>             Project: Cassandra
>          Issue Type: Improvement
>            Reporter: Jackson Chung
>            Priority: Minor
>             Fix For: 1.2.0
>
>         Attachments: 3515.txt
>
>
> i think summary says it all, but see further:
> {noformat}
>  driftx x: I guess we could add a histogram of how many tombstones we filtered on a read
>  driftx x: @action: go for it in that context
>  action jackson: thx!
>  mdennis x: +1 on histogram of filtered tombstones
>  driftx x: definitely useful for diagnosing the queue-like case
>  driftx x: the histogram I mea
> {noformat}

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