hadoop-common-dev mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Raghu Angadi (JIRA)" <j...@apache.org>
Subject [jira] Updated: (HADOOP-5158) Port HDFS space quotas to 0.18
Date Tue, 03 Feb 2009 01:07:59 GMT

     [ https://issues.apache.org/jira/browse/HADOOP-5158?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel

Raghu Angadi updated HADOOP-5158:

    Fix Version/s:     (was: 0.18.4)

On further thought, it does not look like it is simple to handle the layout change. The layout
version is 16 (namespace quotas). In 0.19, layout increased to 17 for access times and then
to 18 for space quotas.

The layout version in 0.18 can not be changed as long as we support upgrade to 0.18.4 to already
released versions like 0.19.0. Even if have a restriction like a software can only be upgraded
to a later verison (i.e. 0.18.4 to 0.19.1 (future release), but not to 0.19.0), the code could
be a bit messy.

What can be done now? I think we could provide a work around where space quotas are not persistent
in 0.18. So admin need to set the quotas each time the cluster restarts. Since quotas are
not really used by many, this might be an acceptable work around for a very few who need it.

> Port HDFS space quotas to 0.18
> ------------------------------
>                 Key: HADOOP-5158
>                 URL: https://issues.apache.org/jira/browse/HADOOP-5158
>             Project: Hadoop Core
>          Issue Type: Improvement
>          Components: dfs
>    Affects Versions: 0.18.3
>            Reporter: Raghu Angadi
>            Assignee: Raghu Angadi
> 0.18 already has quotas for HDFS namespace (HADOOP-3187). HADOOP-3938 implements similar
quotas for disk space on HDFS in 0.19. This jira proposes to port HADOOP-3938 to 0.18.4.

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

View raw message