Make LSM bulkload append-only and write-once.
Allows for usage of LSM indexes with underlying storage that is append-only.
This also results in a small improvement for LSM component bulk load speed.
- Tree metadata (filters, etc) now lie at the back of the tree file in
append-only mode.
-- Note that you should *not* ever give the append-only flag on bulk-load,
if the tree is ever to be modified in place.
- Append-only operations bypass the buffer cache for writes, but utilize
the buffer cache for memory allocation and reads.
- Addresses
ASTERIXDB-1059Change-Id: I80fb891b5310252143854a336b591bf3f8cd4ba7
Reviewed-on:
https://asterix-gerrit.ics.uci.edu/255Tested-by: Jenkins <jenkins@fulliautomatix.ics.uci.edu>
Reviewed-by: Young-Seok Kim <kisskys@gmail.com>
Reviewed-by: Murtadha Hubail <hubailmor@gmail.com>