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From "Tyler Hobbs (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (CASSANDRA-6356) Proposal: Statistics.db (SSTableMetadata) format change
Date Thu, 12 Dec 2013 19:16:07 GMT

    [ https://issues.apache.org/jira/browse/CASSANDRA-6356?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13846619#comment-13846619
] 

Tyler Hobbs commented on CASSANDRA-6356:
----------------------------------------

[~yukim] I made a few nitpick comments inline on your commits on Github.  Other than those,
+1.

> Proposal: Statistics.db (SSTableMetadata) format change
> -------------------------------------------------------
>
>                 Key: CASSANDRA-6356
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-6356
>             Project: Cassandra
>          Issue Type: Improvement
>            Reporter: Yuki Morishita
>            Assignee: Yuki Morishita
>            Priority: Minor
>             Fix For: 2.1
>
>         Attachments: 6356-v2.txt
>
>
> We started to distinguish what's loaded to heap, and what's not from Statistics.db. For
now, ancestors are loaded as they needed.
> Current serialization format is so adhoc that adding new metadata that are not permanently
hold onto memory is somewhat difficult and messy. I propose to change serialization format
so that a group of stats can be loaded as needed.



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