Thank you all! it worked like a charm On Wed, Jul 30, 2008 at 3:05 PM, Konstantin Shvachko <[EMAIL PROTECTED]>wrote:
> On hdfs see > http://wiki.apache.org/hadoop/FAQ#15 > In addition to the James's suggestion you can also specify dfs.name.dir > for the name-node to store extra copies of the namespace. > > > > James Moore wrote: > >> On Tue, Jul 29, 2008 at 6:37 PM, Rafael Turk <[EMAIL PROTECTED]> >> wrote: >> >>> Hi All, >>> >>> I´m setting up a cluster with 4 disks per server. Is there any way to >>> make >>> Hadoop aware of this setup and take benefits from that? >>> >> >> I believe all you need to do is give four directories (one on each >> drive) as the value for dfs.data.dir and mapred.local.dir. Something >> like: >> >> <property> >> <name>dfs.data.dir</name> >> >> >> <value>/drive1/myDfsDir,/drive2/myDfsDir,/drive3/myDfsDir,/drive4/myDfsDir</value> >> <description>Determines where on the local filesystem an DFS data node >> should store its blocks. If this is a comma-delimited >> list of directories, then data will be stored in all named >> directories, typically on different devices. >> Directories that do not exist are ignored. >> </description> >> </property> >> >>
