Is row cache not enough for this? Sent from my iPad
On Jul 15, 2011, at 12:04 AM, Suman Ghosh <sumanthew...@gmail.com> wrote: > Hi, > > > > We’re presently trying to use Cassandra as a storage/retrieval system for > live data & composite counters (on the data). > > > > As we work on telecom data records (voice call/sms/GPRS xDRs), the data > volume is simply HUGE, and we definitely need a “controlled” caching > mechanism in front of the Cassandra layer. > > > > By the term “controlled cache layer”, what I am trying to suggest is > something like maybe maintaining a list of most high-usage (and therefore, > high occurrence) phone numbers somewhere, and the cache layer will hold all > live data and counters for those numbers in memory. Therefore, all read/write > operations which relate to that particular set of numbers will be very fast, > since there will be no physical disk usage. For all other records in the data > feed (which are not so frequent in occurrence) - the cache will pass through > read/write operations to the Cassandra store directly. > > > > The basic caching mechanism provided by Cassandra seems to be inadequate for > this strategy L > > > > Any ideas or suggestions how we might proceed for this? > > > > Thanks & Regards, > > SG. > > > > -- > Get me at GMail --> sumanthewhiz[at]gmail[dot]com > ... or there's Yahoo --> sumanthewhiz[at]yahoo[dot]com
