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From Peter Kovgan <>
Subject RE: how to force cassandra-stress to actually generate enough data
Date Thu, 16 Jun 2016 08:33:46 GMT
Thank you, guys.
I will try all proposals.
The limitation, mentioned by Benedict, is huge.
But anyway, there is something to do around.....

From: Peter Kovgan
Sent: Wednesday, June 15, 2016 3:25 PM
To: ''
Subject: how to force cassandra-stress to actually generate enough data


The cassandra-stress is not helping really to populate the disk sufficiently.

I tried several table structures, providing

cluster: UNIFORM(1..10000000000)  on clustering parts of the PK.

Partition part of PK makes about 660 000 partitions.

The hope was create enough cells in a row, make the row really WIDE.

No matter what I tried, does no matter how long it runs, I see maximum 2-3 SSTables per node
and maximum 300Mb of data per node.

(I have 6 nodes and very active 400 threads stress)

It looks, like It is impossible to make the row really wide and disk really full.

Is it intentional?

I mean, if there was an intention to avoid really wide rows, why there is no hint on this
in docs?

Do you have similar experience and do you know how resolve that?


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