Hi, https://www.instaclustr.com/deep-diving-into-cassandra-stress-part-1/
In the blog, They covered many things in detail. Thanks!! On Thu, Nov 2, 2017 at 12:38 AM, Lucas Benevides < lu...@maurobenevides.com.br> wrote: > Dear community, > > I am using Cassandra Stress Tool and trying to simulate IoT generated data. > So I created a column family with the device_id as the partition key. > > But in every different operation (the parameter received in the -n option) > the generated values are the same. For instance, I have a column called > observation_time which is supposed to be the time measured by the sensor. > But in every partition the values are equal. > > Is there a way to make those values be randomically generated with > different seeds? I need this way so that if the same device_id occurs > again, it makes an INSERT instead of an UPSERT. > > To clarify: What is happening now (fictional data): > > operation 1 > device 1 > ts1: 01/01/1970 > ts2: 02/01/1980 > ts3: 03/01/1990 > > operation 2 > device 2 > ts1: 01/01/1970 > ts2: 02/01/1980 > ts3: 03/01/1990 > > What I want: > operation1 > device 1 > ts1: 01/01/1970 > ts2: 02/01/1980 > ts3: 03/01/1990 > > operation2 > device 2 > ts1: 02/01/1971 #Different values here. > ts2: 05/01/1982 > ts3: 08/01/1993 > > Thanks in advance, > Lucas Benevides > >
