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From Daniel Doubleday <>
Subject Read before Write
Date Fri, 27 Aug 2010 12:57:52 GMT
Hi people

I was wondering if anyone already benchmarked such a situation:

I have:

day of year (row key) -> SomeId (column key) -> byte[0]

I need to make sure that I write SomeId, but in around 80% of the cases it will be already
present (so I would essentially replace it with itself). RF will be 2.

So should I rather just write all the time (given that cassandra is so fast on write) or should
I read and write only if not present?

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