Deletion consistency

2013-02-15 Thread Víctor Hugo Oliveira Molinar
hello everyone! I have a column family filled with event objects which need to be processed by query threads. Once each thread query for those objects(spread among columns bellow a row), it performs a delete operation for each object in cassandra. It's done in order to ensure that these events

Re: Deletion consistency

2013-02-15 Thread Mike
If you increase the number of nodes to 3, with an RF of 3, then you should be able to read/delete utilizing a quorum consistency level, which I believe will help here. Also, make sure the time of your servers are in sync, utilizing NTP, as drifting time between you client and server could

Re: Deletion consistency

2013-02-15 Thread Bryan Talbot
With a RF and CL of one, there is no replication so there can be no issue with distributed deletes. Writes (and reads) can only go to the one host that has the data and will be refused if that node is down. I'd guess that your app isn't deleting records when you think that it is, or that the

Re: Deletion consistency

2013-02-15 Thread Víctor Hugo Oliveira Molinar
*Mike*, for now I can't upgrade my cluster. I'm going to check the servers time sync. Thanks; *Bryan*, so u think it's not a distributed deleted problem. Thanks for bringing it up. Btw, hector should not be hiding any exception from me. Although there's a mutator reuse in my application. I'm