Re: Inconsistent results with Quorum at different times

2016-09-19 Thread Alain RODRIGUEZ
Hi Jaydeep. > Now when I read using quorum then sometimes it returns data D1 and > sometimes it returns empty results. After tracing I found that when N1 and > N2 are chosen then we get empty data, when (N1/N2) and N3 are chosen then > D1 data is returned. This is an acceptable situation (ie.

Re: Inconsistent results with Quorum at different times

2016-09-16 Thread Nicolas Douillet
Hi Jaydeep, Yes, dealing with tombstones in Cassandra is very tricky. Cassandra keeps tombstones to mark deleted columns and distribute (hinted handoff, full repair, read repair ...) to the other nodes that missed the initial remove request. But Cassandra can't afford to keep those tombstones