hadoop-common-dev mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Konstantin Shvachko (JIRA)" <j...@apache.org>
Subject [jira] Updated: (HADOOP-3369) Fast block processing during name-node startup.
Date Thu, 08 May 2008 23:58:55 GMT

     [ https://issues.apache.org/jira/browse/HADOOP-3369?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel

Konstantin Shvachko updated HADOOP-3369:

    Status: Patch Available  (was: Open)

> Fast block processing during name-node startup.
> -----------------------------------------------
>                 Key: HADOOP-3369
>                 URL: https://issues.apache.org/jira/browse/HADOOP-3369
>             Project: Hadoop Core
>          Issue Type: Improvement
>          Components: dfs
>    Affects Versions: 0.17.0
>            Reporter: Konstantin Shvachko
>            Assignee: Konstantin Shvachko
>             Fix For: 0.18.0
>         Attachments: fastBlockReports.patch
> The block report processing during the startup period should be optimized.
> As noted in HADOOP-3022 during cluster startup all blocks are under-replicated 
> because they have not been reported by name-nodes yet.
> Currently, we routinely move blocks to the neededReplications queue when they
> are first reported and then remove them from the list when other nodes report it.
> In ideal situation we end up adding all blocks into neededReplications queue first
> only in order to remove all of them in the end. 

This message is automatically generated by JIRA.
You can reply to this email to add a comment to the issue online.

View raw message