[
https://issues.apache.org/jira/browse/HADOOP-3022?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12594466#action_12594466
]
Konstantin Shvachko commented on HADOOP-3022:
---------------------------------------------
Yes, replication = 3.
Block report processing in my test includes only name-node processing. No
preparation time, no RPC overhead.
The processing time is proportional to the number of data-nodes (confirmed by
the tests).
This is because the name-node locks namespace for each block report and
processes them sequentially one after another.
> Fast Cluster Restart
> --------------------
>
> Key: HADOOP-3022
> URL: https://issues.apache.org/jira/browse/HADOOP-3022
> Project: Hadoop Core
> Issue Type: New Feature
> Components: dfs
> Reporter: Robert Chansler
> Assignee: Konstantin Shvachko
> Fix For: 0.18.0
>
>
> This item introduces a discussion of how to reduce the time necessary to
> start a large cluster from tens of minutes to a handful of minutes.
--
This message is automatically generated by JIRA.
-
You can reply to this email to add a comment to the issue online.
