[
https://issues.apache.org/jira/browse/HDFS-1195?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14267740#comment-14267740
]
Cosmin Lehene commented on HDFS-1195:
-------------------------------------
[~kevinweil] is this still valid?
> Offer rate limits for replicating data
> ---------------------------------------
>
> Key: HDFS-1195
> URL: https://issues.apache.org/jira/browse/HDFS-1195
> Project: Hadoop HDFS
> Issue Type: Improvement
> Components: datanode
> Affects Versions: 0.20.2
> Environment: Linux, Hadoop 0.20.1 CDH
> Reporter: Kevin Weil
>
> If a rack of Hadoop nodes goes down, there is a lot of data to re-replicate.
> It would be great to have a configuration option to rate-limit the amount of
> bandwidth used for re-replication so as not to saturate network backlinks.
> There is a similar option for rate limiting the speed at which a DFS
> rebalance takes place: dfs.balance.bandwidthPerSec.
--
This message was sent by Atlassian JIRA
(v6.3.4#6332)
