Home | About | Sematext search-lucene.com search-hadoop.com
 Search Hadoop and all its subprojects:

Switch to Threaded View
HDFS >> mail # dev >> [VOTE -- Round 2] Commit hdfs-630 to 0.21?


Copy link to this message
-
Re: [VOTE -- Round 2] Commit hdfs-630 to 0.21?
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.