Hi Eric,
Zitat von Eric Stevens <migh...@gmail.com>:
Be careful with creating many dynamically created column families unless
you're cleaning up old ones to keep the total number of CF's reasonable.
Having many column families will increase memory pressure and reduce
overall performance.
will "inactive" CFs be released from C*'s memory after i.e. a few days
or when under resource pressure? We do intend to have quite some
hundreds of tables, but with only 10% actively used (no reads nor
writes) after some time.
These CFs are used as "time buckets", but are to be kept for speedy
recovery. Of course, this design may be substituted by some external
backup mechanism, but I'd like to keep that as "plan C" ;)
Regards,
Jens
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