Hi, You'll ideally just need the latest fsimage file, which includes the whole check pointed namespace, so "hdfs dfsadmin -fetch" is appropriate.
On Tue, Feb 4, 2014 at 3:02 AM, Ivan Tretyakov <itretya...@griddynamics.com> wrote: > Does anybody can comment 'copying NN metadata directory' vs 'hdfs dfsadmin > -fetch', using NN HA configuration? > > > On Fri, Jan 31, 2014 at 8:26 PM, Ivan Tretyakov > <itretya...@griddynamics.com> wrote: >> >> Hi! >> >> We are using following version of Hadoop software: 2.0.0-cdh4.1.1. >> >> HDFS HA configuration is applied. >> >> I would like to ask if there are any difference or possible side effects >> of backing up namenode data directory. >> >> It is ok to just copy NN data directory from active NN to another host, >> what about standby NN? >> Or it may NN metadate can be in inconsistent state? >> Is there any advantages of using "hdfs dfsadmin -fetch <file>" command? >> >> -- >> Best Regards >> Ivan Tretyakov >> >> Deployment Engineer >> Grid Dynamics >> +7 812 640 38 76 >> Skype: ivan.v.tretyakov >> www.griddynamics.com >> itretya...@griddynamics.com > > > > > -- > Best Regards > Ivan Tretyakov > > Deployment Engineer > Grid Dynamics > +7 812 640 38 76 > Skype: ivan.v.tretyakov > www.griddynamics.com > itretya...@griddynamics.com -- Harsh J
