An empty memtable would not take up much space, a few KB I would assume.
However they are considered in the calculations that control how frequently to
flush to disk. The more CF's, even if they do not have data, the more
frequently you will flush to disk.
Cheers
-
Aaron Morto
Not sure how up-to-date this info is, but from some discussions that
happened here long time ago I remember that a minimum of 1MB per
Memtable needs to be allocated.
The other constraint here is memtable_total_space_in_mb setting in
cassandra.yaml, which you might wish to tune when having a lo
The way weve gone about our data models has resulted in lots of column
families and just looking for guidelines about how much space each column
table adds.
TIA
On Sun, Jul 21, 2013 at 11:19 PM, Darren Smythe wrote:
> Hi,
>
> How much overhead (in heap MB) does an empty memtable use? If I have
Hi,
How much overhead (in heap MB) does an empty memtable use? If I have many
column families that aren't written to often, how much memory do these take
up?
TIA
-- Darren
