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] Commented: (HADOOP-3058) Hadoop DFS to report more replication metrics
Date Fri, 02 May 2008 22:14:55 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-3058?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12593915#action_12593915
] 

Raghu Angadi commented on HADOOP-3058:
--------------------------------------

+1 Patch looks fine. I have no idea if this has real penalty on namenode performance. Mostly
it does not affect. Multiple simple integer and long operation in the critical paths are replaced
by methods that synchronize on a different object.


> Hadoop DFS to report more replication metrics
> ---------------------------------------------
>
>                 Key: HADOOP-3058
>                 URL: https://issues.apache.org/jira/browse/HADOOP-3058
>             Project: Hadoop Core
>          Issue Type: Improvement
>          Components: dfs, metrics
>            Reporter: Marco Nicosia
>            Assignee: lohit vijayarenu
>            Priority: Minor
>         Attachments: HADOOP-3058.patch
>
>
> Currently, the namenode and each datanode reports 'blocksreplicatedpersec.'
> We'd like to be able to graph pending replications, vs number of under replicated blocks,
vs. replications per second, so that we can get a better idea of the replication activity
within the DFS.

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


Mime
View raw message