bigger data density with Cassandra 4.0?

2018-08-25 Thread onmstester onmstester
I've noticed this new feature of 4.0: Streaming optimizations (https://cassandra.apache.org/blog/2018/08/07/faster_streaming_in_cassandra.html) Is this mean that we could have much more data density with Cassandra 4.0 (less problems than 3.X)? I mean > 10 TB of data on each node without worrying

Re: benefits oh HBase over Cassandra

2018-08-25 Thread daemeon reiydelle
Messenger can allow for some losses in degenerate infra cases, given a given infra footprint. Also some ability to handle scale up faster as demand increases, peak loads, etc. It therefore becomes a use case specific optimization. Also hBase can run in Hadoop more easily, leveraging blobs (HDFS), e

Re: why returned achievedConsistencyLevel is null

2018-08-25 Thread Andy Tolbert
Hi Vitaliy, That method (https://docs.datastax.com/en/latest-java-driver-api/com/datastax/driver/core/ExecutionInfo.html#getAchievedConsistencyLevel--) is a bit confusing as it will return null when your desired consistency level is achieved: > If the query returned without achieving the request