Thank you Harsh! But I would like to know if just copying NN data directory (dfs.name.dir, dfs.namenode.name.dir) is appropriate or not?
On Tue, Feb 4, 2014 at 6:00 AM, Harsh J <[email protected]> wrote: > 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 > <[email protected]> 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 > > <[email protected]> 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 > >> [email protected] > > > > > > > > > > -- > > Best Regards > > Ivan Tretyakov > > > > Deployment Engineer > > Grid Dynamics > > +7 812 640 38 76 > > Skype: ivan.v.tretyakov > > www.griddynamics.com > > [email protected] > > > > -- > Harsh J > -- Best Regards Ivan Tretyakov Deployment Engineer Grid Dynamics +7 812 640 38 76 Skype: ivan.v.tretyakov www.griddynamics.com [email protected]
