I see no reason to believe you’d lose data doing this - why do you suspect you may?
-- Jeff Jirsa > On Mar 8, 2018, at 8:36 PM, Eunsu Kim <eunsu.bil...@gmail.com> wrote: > > The auto_snapshot setting is disabled. And the directory architecture on the > five nodes will match exactly. > > (Cassandra/Server shutdown -> Mount disk -> Add directory to > data_file_directories -> Start Cassandra) * 5 rolling > > Is it possible to add disks without losing data by doing the above procedure? > > > >> On 7 Mar 2018, at 7:59 PM, Rahul Singh <rahul.xavier.si...@gmail.com> wrote: >> >> Are you putting both the commitlogs and the Sstables on the adds? Consider >> moving your snapshots often if that’s also taking up space. Maybe able to >> save some space before you add drives. >> >> You should be able to add these new drives and mount them without an issue. >> Try to avoid different number of data dirs across nodes. It makes automation >> of operational processes a little harder. >> >> As an aside, Depending on your usecase you may not want to have a data >> density over 1.5 TB per node. >> >> -- >> Rahul Singh >> rahul.si...@anant.us >> >> Anant Corporation >> >>> On Mar 7, 2018, 1:26 AM -0500, Eunsu Kim <eunsu.bil...@gmail.com>, wrote: >>> Hello, >>> >>> I use 5 nodes to create a cluster of Cassandra. (SSD 1TB) >>> >>> I'm trying to mount an additional disk(SSD 1TB) on each node because each >>> disk usage growth rate is higher than I expected. Then I will add the the >>> directory to data_file_directories in cassanra.yaml >>> >>> Can I get advice from who have experienced this situation? >>> If we go through the above steps one by one, will we be able to complete >>> the upgrade without losing data? >>> The replication strategy is SimpleStrategy, RF 2. >>> >>> Thank you in advance >>> --------------------------------------------------------------------- >>> To unsubscribe, e-mail: user-unsubscr...@cassandra.apache.org >>> For additional commands, e-mail: user-h...@cassandra.apache.org >>> > > > --------------------------------------------------------------------- > To unsubscribe, e-mail: user-unsubscr...@cassandra.apache.org > For additional commands, e-mail: user-h...@cassandra.apache.org > --------------------------------------------------------------------- To unsubscribe, e-mail: user-unsubscr...@cassandra.apache.org For additional commands, e-mail: user-h...@cassandra.apache.org
