We simply copy the snapshot data to another cluster to replace its data directory. This cluster does not have any incoming traffic.
I haven't compared the md5 sum yet. Will try that. Thanks, John On Thu, Jul 28, 2011 at 10:27 PM, Zhu Han <schumi....@gmail.com> wrote: > > > On Thu, Jul 28, 2011 at 10:47 PM, Jian Fang <jian.fang.subscr...@gmail.com > > wrote: > >> Hi, >> >> We have an old production Cassandra 0.6.8 instance without replica, i.e., >> the replication factor is 1. Recently, we noticed that >> the snapshot data we took from this instance are inconsistent with the >> running instance data. For example, we took snapshot >> in early July 2011. From the running instance, we got a record that was >> created in March 2011, but on the snapshot copy, the >> record with the same key was different and was created in January 2011. >> Yesterday, we created another snapshot and reproduced >> the problem. I just like to know if this is a known issue for Cassandra >> 0.6. >> > > Do you see any difference between the sstables of running instance and the > snapshot? You can use md5sum to compare them. > > How do you load the snapshot to another cluster? > >> >> We are going to migrate to Cassandra 0.8, but we need to make sure this >> will not be a problem in 0.8. >> >> Thanks in advance, >> >> John >> >> >
