I understand that there will be contention regarding which *n* columns are
the current *n* columns but as mentioned previously the goal is to limit
the accumulation of data as in our use-case some row keys can receive
fairly heavy inserts. For people requiring precise set of current columns
that fe
During compaction, both automatic / minor and manual / major.
The performance drop is having a lot of expired columns that have not been
purged by compaction as they must be read and discarded during reads.
Cheers
-
Aaron Morton
Freelance Developer
@aaronmorton
http://www.thel
@Aaron: Small side question, when do columns with a past TTL get removed?
On a repair, (minor) compaction, or .. ? Does it have a performance drop if
that's happening?
2012/1/2 aaron morton
> Even if you had compaction enforcing a limit on the number of columns in a
> row, there would still be i
Even if you had compaction enforcing a limit on the number of columns in a row,
there would still be issues with concurrent writes at the same time and with
read-repair. i.e. node a says the this is the first n columns but node b says
something else, you only know who is correct at read time.
H
