Anil & others wondering, Part 1 for this series from McFadin can be found here: Cassandra Community Webinar | The Data Model is Dead, Long Live the Data Model And the final part can be found here (the Cassandra Summit 2013 talk): C* Summit 2013: The World's Next Top Data Model (KZitem is pretty good about recommending Part 1 & 3 - just indicating them). His "Killer Video" schema he mentions is here: C* 2012: Building a Cassandra Based Application from Scratch (Patrick McFadin, Hobsons)
@ayanc2685
10 жыл бұрын
@3:39, we are going to run out of rows or columns? the key is weatherStation_id+event_time, if we log for every second we will create a new row since our event_time is changed(actually our key got changed) . . May be I am wrong, I am just started with NoSQL.
@toddkazakov
11 жыл бұрын
I believe you are quite mistaken saying that you'll run out of columns. If you sample every second and Cassandra can handle 2 billion columns, this means that I can store 63 years of timeseries data. For most application I believe this would be enough.
@AviLevi123
9 жыл бұрын
awesome video , just one remark - Adding element to Map is with the INSERT command as shown here docs.datastax.com/en/cql/3.0/cql/cql_using/use_map_t.html
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