On Mon, Aug 2, 2010 at 9:11 AM, john xie <shanfengg...@gmail.com> wrote: > ReplicationFactor = 3 > one day i stop 192.168.1.147 and remove cassandra data by mistake, can i > recover 192.168.1.147's cassadra data by restart cassandra ? > > > <DataFileDirectories> > <DataFileDirectory>/data1/cassandra/</DataFileDirectory> > <DataFileDirectory>/data2/cassandra/</DataFileDirectory> > <DataFileDirectory>/data3/cassandra/</DataFileDirectory> > </DataFileDirectories> > /data3 mount /dev/sdd > i remove /data3 and formatt /dev/sdd > > Address Status Load Range > Ring > > 135438270110006521520577363629178401179 > 192.168.1.148 Up 50.38 GB > 52435029392953385124849742453833332898 |<--| > 192.168.1.145 Up 48.38 GB > 63161078970569359253391371326773726097 | | > 192.168.1.147 ? 23.5 GB > 79546317728707787532885001681404757282 | | > 192.168.1.146 Up 26.34 GB > 135438270110006521520577363629178401179 |-->| > > > > > >
Since you have a replication factor of three if you bring a new node through auto-bootstrap data will migrate back to it since it has two copies. Nothing is lost.
