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From "Emmanuel Lecharny (JIRA)" <>
Subject [jira] [Resolved] (MAVIBOT-3) Update the Header only once when updating a BTree
Date Mon, 02 Sep 2013 06:43:52 GMT


Emmanuel Lecharny resolved MAVIBOT-3.

    Resolution: Invalid

The header is updated only once per operation on a BTree. It's difficult to do better.

One solution would be to update the header only once per transaction (assuming a transaction
is gathering modifications on more than one BTree).
> Update the Header only once when updating a BTree
> -------------------------------------------------
>                 Key: MAVIBOT-3
>                 URL:
>             Project: Mavibot
>          Issue Type: Improvement
>    Affects Versions: 1.0.0-M1
>            Reporter: Emmanuel Lecharny
>            Assignee: Emmanuel Lecharny
>            Priority: Critical
>             Fix For: 1.0.0-M2
> We currently update the RM Header for every page we write on disk. This is extremely
costly. We could gather all the changes and update the RM header only once.

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