Re: failing reconcilliation during counter increment?

2012-12-03 Thread David Vanderfeesten
Txs Sylvain. Interesting feedback For now higher consistency level is not fault tolerant (two node setup) but worth to consider for other deployments. Further investigation learns that system has quit some iowaits. It seems that we are pushing it to far. It is obvious that counter cf's increments

Re: failing reconcilliation during counter increment?

2012-11-30 Thread Sylvain Lebresne
> > To my understanding client will not be notified because this read step is > asynchronously. Yes, though for the record it's actually synchronous if you use anything else than CL.ONE. > Also the other replica cannot be updated properly (replicate-on-write > stage is backing up). > Question i

failing reconcilliation during counter increment?

2012-11-29 Thread David Vanderfeesten
Hi We are running a Cassandra 1.0.7, 2 node setup on EC2 using ephemeral disks for storage. Debugging inconsistent dara between 2 nodes we saw logging below. Following the counter CF design, I assume this means the READ step reconciliating the memtable value with the SSTables on the replica rec