hadoop-hdfs-dev mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From Steve Loughran <ste...@apache.org>
Subject Re: [VOTE -- Round 2] Commit hdfs-630 to 0.21?
Date Mon, 25 Jan 2010 13:36:43 GMT
Cosmin Lehene wrote:
> Steve, 
> 
> A DoS could not be done using excludedNodes.
> 
> The blacklisting takes place only at DFSClientLevel. The NN will return a
> list of block locations that excludes the nodes the client decided. This
> list isn't persisted anywhere on the server. So if a client excludes the
> entire set of DNs other clients won't be affected.
> 

OK,  +1 then.

Mime
View raw message