You are viewing a plain text version of this content. The canonical link for it is here.

Posted to hdfs-issues@hadoop.apache.org by "Haohui Mai (JIRA)" <ji...@apache.org> on 2014/06/06 20:26:02 UTC

[jira] [Updated] (HDFS-6315) Decouple recording edit logs from FSDirectory

     [ https://issues.apache.org/jira/browse/HDFS-6315?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Haohui Mai updated HDFS-6315:
-----------------------------

    Attachment: HDFS-6315.002.patch

> Decouple recording edit logs from FSDirectory
> ---------------------------------------------
>
>                 Key: HDFS-6315
>                 URL: https://issues.apache.org/jira/browse/HDFS-6315
>             Project: Hadoop HDFS
>          Issue Type: Sub-task
>            Reporter: Haohui Mai
>            Assignee: Haohui Mai
>         Attachments: HDFS-6315.000.patch, HDFS-6315.001.patch, HDFS-6315.002.patch
>
>
> Currently both FSNamesystem and FSDirectory record edit logs. This design requires both FSNamesystem and FSDirectory to be tightly coupled together to implement a durable namespace.
> This jira proposes to separate the responsibility of implementing the namespace and providing durability with edit logs. Specifically, FSDirectory implements the namespace (which should have no edit log operations), and FSNamesystem implement durability by recording the edit logs.



--
This message was sent by Atlassian JIRA
(v6.2#6252)