I wonder if one particular node is having trouble; when you notice the missing column, what happens if you execute the read manually from cqlsh or cassandra-cli independently directly on each node?
On Wed, Jul 3, 2013 at 2:00 AM, Blake Eggleston <bl...@grapheffect.com>wrote: > Hi All, > > We're having a problem with our cassandra cluster and are at a loss as to > the cause. > > We have what appear to be columns that disappear for a little while, then > reappear. The rest of the row is returned normally during this time. This > is, of course, very disturbing, and is wreaking havoc with our application. > > A bit more info about what's happening: > > We are repeatedly executing the same query against our cluster. Every so > often, one of the columns will disappear from the row and will remain gone > for some time. Then after continually executing the same query, the column > will come back. The queries are being executed against a 3 node cluster, > with a replication factor of 3, and all reads and writes are done with a > quorum consistency level. > > We upgraded from cassandra 1.1.12 to 1.2.6 last week, but only started > seeing issues this morning. > > Has anyone had a problem like this before, or have any idea what might be > causing it?
