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From "Tyler Hobbs (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (CASSANDRA-5519) Reduce index summary memory use for cold sstables
Date Fri, 22 Nov 2013 17:18:36 GMT

    [ https://issues.apache.org/jira/browse/CASSANDRA-5519?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13830123#comment-13830123
] 

Tyler Hobbs commented on CASSANDRA-5519:
----------------------------------------

bq. releaseReference, which can be reverted back to trunk form since isReplaced == !isCompacted

True

bq. close, which is only called by snapshot repair (and releaseReference) which will never
do any index summary replacements

We still need to have different behavior for the {{close()}} call by snapshot repair, as it
needs to perform the full close even though {{isCompacted}} will be false.  While we could
add a parameter to close() or define a {{closeReplacedReader()}} method, it seems clearer
and more future-proof to keep the isReplaced flag.

> Reduce index summary memory use for cold sstables
> -------------------------------------------------
>
>                 Key: CASSANDRA-5519
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-5519
>             Project: Cassandra
>          Issue Type: Bug
>          Components: Core
>            Reporter: Jonathan Ellis
>            Assignee: Tyler Hobbs
>            Priority: Minor
>             Fix For: 2.1
>
>         Attachments: 5519-v1.txt, downsample.py
>
>




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