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understanding federation and mount pointsESGLinux 2012-12-21, 10:48
Hi All,
I´m newbie with federation (thanks to Harsh J. for his help with the nodes ;-) ) and I have a doubt about how clients mount the namespaces: If I have a NS1 that stores data for the users, for example /datausers And I have a NS2 that stores apache logs, for example /apachelogs I suposse I need to configure the clients something like this: <property> <name>fs.viewfs.mounttable.cluster.link./datausers</name> <value>hdfs://namenode01.8020/datausers</value> </property> <property> <name>fs.viewfs.mounttable.cluster.link./apachelogs</name> <value>hdfs://namenode02:8020/apachelogs</value> </property> My question is what happens when a client try to put a file in a directorio at top level, for example /otherDir/. Who handles / dir ? I have read that it´s similar to fstab but in linux you always have / mounted in a device, it´s necessary to do the same with federation? Thank in advance, ESGLinux, |