Sorry, forgot to mention we're running Cassandra 1.1. Conan
On 8 May 2012 17:51, Conan Cook <conan.c...@amee.com> wrote: > Hi Cassandra Folk, > > We've experienced a problem a couple of times where Cassandra nodes lose a > keyspace after a restart. We've restarted 2 out of 3 nodes, and they have > both experienced this problem; clearly we're doing something wrong, but > don't know what. The data files are all still there, as before, but the > node can't see the keyspace (we only have one). Tthe nodetool still says > that each one is responsible for 33% of the keys, but the disk usage has > dropped to a tiny amount on the nodes that we've restarted. I saw this: > > > http://mail-archives.apache.org/mod_mbox/cassandra-user/201202.mbox/%3c4f3582e7.20...@conga.com%3E > > Seems to be exactly our problem, but we have not modified the > cassandra.yaml - we have overwritten it through an automated process, and > that happened just before restarting, but the contents did not change. > > Any ideas as to what might cause this, or how the keyspace can be restored > (like I say, the data is all still in the data directory). > > We're running in AWS. > > Thanks, > > > Conan >
