I'm using QUORUM, but in my single-node setup this doesn't matter
On 9/3/2010 1:51 PM, Nick Telford wrote:
Which ConsistencyLevels did you use for your
batchMutate() and getSlice() operations?
ConsistencyLevels directly dictate the level of consistency
you will get with your data.
On 3 September 2010 12:03, Hugo <email@example.com>
I'm performing tests with Cassandra 0.6.5 with Hector
0.6.0-14 on a single machine (one node cluster). I've
noticed an issue with consistency.
In my tests I perform a KeySpace.batchMutate() to update a
column and immediately after that I perform a
KeySpace.getSlice() on the same column (from within the same
thread). I noticed that occasionally I get back the previous
value rather than the value I've just written.
My guess is that this occurs because Hector uses pooled
connections and both my requests are executed on different
connections. I suspect this causes a race condition in
Cassandra between the getSlice() and the batchMutate().
Can anyone confirm my suspicions and does anyone have a
solution for this?