A number of questions on LeveledCompactionStrategy

Hi, I've got a number of questions when looking into LCS in Cassandra. Could somebody help to enlighten me? 1. Will LCS always strive to clean up L0 sstable? i.e. whenever a new L0 sstable shows up, it will trigger LCS compaction to upgrade it into higher level? If that’s what’s happening, what

Re: Realtime data and (C)AP

Cool - yeah we are still on astyanax mode drivers and our own built from scratch 100% non blocking Scala driver that we used in akka like environments Sent from my iPhone > On Oct 10, 2015, at 12:12 AM, Steve Robenalt wrote: > > Hi Graham, > > I've used the Java

cassandra 3.0 rc1 and datastax java driver 3.0.0 alpha3

Hi all, I've tried to connect to the cassandra 3.0 cluster, using datastax java driver, but I got the following exception when I tried to craete MappingManager: Caused by: com.datastax.driver.core.exceptions.CodecNotFoundException: Codec not found for requested operation: [varchar <-> V]

Re: Is replication possible with already existing data?

Thanks a ton Anuja for the help !!! On Fri, Oct 9, 2015 at 12:38 PM, anuja jain wrote: > Hi Ajay, > > > On Fri, Oct 9, 2015 at 9:00 AM, Ajay Garg wrote: >> > In this case, it will be the responsibility of APP1 to start connection to > CAS12. On the

Re: Cassandra query degradation with high frequency updated tables.

What do you mean by that *And since this is a test , this is just running on a single node.* ? What is the hardware spec ? Also from the schema in CASSANDRA-10502 there’s a lot of maps, what is the size fo these maps ? I’ve seen cassandra