The sstable loader relied on the generation id to provide an efficient hint about the shard that owns an sstable. But, this hint was rendered ineffective with the introduction of UUID generation, as the shard id was no longer embedded in the generation id. This also became suboptimal with the introduction of tablets. Commit0c77f77addressed this issue by reading the minimum from disk to determine sstable ownership but this improvement was lost with commit63f1969, which optimistically assumed that hints would work most of the time, which isn't true. This commit restores that change - shard id of a table is deduced by reading minially from disk and then the sstable is fully loaded only if it belongs to the local shard. This patch also adds a testcase to verify that the sstable are loaded only in their respective shards. Fixes #21015 Signed-off-by: Lakshmi Narayanan Sreethar <lakshmi.sreethar@scylladb.com> (cherry picked from commit63100b34da)
Scylla in-source tests.
For details on how to run the tests, see docs/dev/testing.md
Shared C++ utils, libraries are in lib/, for Python - pylib/
alternator - Python tests which connect to a single server and use the DynamoDB API unit, boost, raft - unit tests in C++ cql-pytest - Python tests which connect to a single server and use CQL topology* - tests that set up clusters and add/remove nodes cql - approval tests that use CQL and pre-recorded output rest_api - tests for Scylla REST API Port 9000 scylla-gdb - tests for scylla-gdb.py helper script nodetool - tests for C++ implementation of nodetool
If you can use an existing folder, consider adding your test to it. New folders should be used for new large categories/subsystems, or when the test environment is significantly different from some existing suite, e.g. you plan to start scylladb with different configuration, and you intend to add many tests and would like them to reuse an existing Scylla cluster (clusters can be reused for tests within the same folder).
To add a new folder, create a new directory, and then
copy & edit its suite.ini.