I've been doing a lot of reading on SSTable fragmentation due to updates and
the costs associated with reconstructing the end data from multiple SSTables
that have been created over time and not yet compacted. One question is stuck
in my head: If you re-insert entire rows instead of updating
I don't believe so. Cassandra still needs to hit the bloom filters for
each SST table and then reconcile all versions and all tombstones for any
row. That's why overwrites have similar performance impact as tombstones,
overwrites just happen to be less common.
On Wed, Apr 9, 2014 at 2:42 PM,
