Don't forget about the tombstones. (delete markers) They are still present on the other two nodes, then they will replicate to the 3rd node and finish off your deleted data.
On Mon, Aug 2, 2010 at 9:30 AM, Edward Capriolo <edlinuxg...@gmail.com> wrote: > 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. >
