Delete all journals associated with a node and also remove the tombstone, allowingthe same node name to be used again.

4096 blocks per addr lock.

Just over the DBSIZE.

Keeping RADOS objects small is a good idea.

We know we won't get any addresses here, because this is the relocation base as well.

This is the size of the readahead/behind for caching.

The number of RADOS blocks to cache (up to 16MB each, probably only 1.6MB each).

Makes 16MB for 16B sblocks.

1MB for write cache, I doubt we will ever hit this tbh.

This is how many uuid/address pairs we will keep to facilitate appending to segmentsinstead of creating new ones.

We also need some other metadata that we can use to learnwhat checkpoint number to start from.