* chore: factor out rdb_load utilities into separate files
rdb_load.cc is huge and contains many auxillary classes.
This PR moves DecompressImpl and ErrorRdb code into detail/
It also fixes minor bugs around error conditions with de-compression:
a. Do not check-fail on invalid opcode and return error_code instead.
b. Print correctly LZ4 errors.
Signed-off-by: Roman Gershman <roman@dragonflydb.io>
* chore: fixes
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Signed-off-by: Roman Gershman <roman@dragonflydb.io>
* chore: some renames + fix a typo in RETURN_ON_BAD_STATUS
Renames in transaction.h - no functional changes.
Fix a typo in error.h following #3758
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Signed-off-by: Roman Gershman <roman@dragonflydb.io>
Related to #159. Before this change, rdb loading thread has been creating all the redis objects as well.
Now we separate rdb file parsing and objects creation. File parsing phase produces a load trace of one or more binary blobs.
Those blobs are then passed to the threads that are responsible to manage the objects.
The second phase is object creation based on the trace that was passed. Finally those binary blobs are destroyed.
As a result, each thread creates objects using the memory allocator it owns and memory stats become consistent.
Signed-off-by: Roman Gershman <roman@dragonflydb.io>
1. Basic support of sets and hsets. No intset or dict-based hset yet.
2. Make sure that rdbloader actually loads the data into shards.
3. Support object metadata like expiry time.
4. Support lists loading.
