Instead of lengthy blurbs, switch to single-line, machine-readable
standardized (https://spdx.dev) license identifiers. The Linux kernel
switched long ago, so there is strong precedent.
Three cases are handled: AGPL-only, Apache-only, and dual licensed.
For the latter case, I chose (AGPL-3.0-or-later and Apache-2.0),
reasoning that our changes are extensive enough to apply our license.
The changes we applied mechanically with a script, except to
licenses/README.md.
Closes#9937
In preparation for caching index objects, manage them under LSA.
Implementation notes:
key_view was changed to be a view on managed_bytes_view instead of
bytes, so it now can be fragmented. Old users of key_view now have to
linearize it. Actual linearization should be rare since partition
keys are typically small.
Index parser is now not constructing the index_entry directly, but
produces value objects which live in the standard allocator space:
class parsed_promoted_index_entry;
calss parsed_partition_index_entry;
This change was needed to support consumers which don't populate the
partition index cache and don't use LSA,
e.g. sstable::generate_summary(). It's now consumer's responsibility
to allocate index_entry out of parsed_partition_index_entry.
When a token is calculated for stream_id, we check that the key is
exactly 16 bytes long. If it's not - `minimum_token` is returned
and client receives empty result.
This used to be the expected behavior for empty keys; now it's
extended to keys of any incorrect length.
Fixes#6570
This is a special partitioner that will be used by
CDC Log. It works only with partition key that is blob
composed of two ints. The first int is a token this
partitioner will map the key to. The second int is there
to make it possible to create multiple keys that are different
from each other but map to the same token.
Signed-off-by: Piotr Jastrzebski <piotr@scylladb.com>
