This is a manual backport of #20788 When tablets are migrated with file-based streaming, we can have a situation where a tombstone is garbage collected before the data it shadows lands. For instance, if we have a tablet replica with 3 sstables: 1. sstable containing an expired tombstone 2. sstable with additional data 3. sstable containing data which is shadowed by the expired tombstone in sstable 1 If this tablet is migrated, and the sstables are streamed in the order listed above, the first two sstables can be compacted before the third sstable arrives. In that case, the expired tombstone will be garbage collected, and data in the third sstable will be resurrected after it arrives to the pending replica. This change fixes this problem by disabling tombstone garbage collection for pending replicas. This fixes a problem in Enterprise, but the change is in OSS in order to have as few differences between OSS and Enterprise and to have a common infrastructure for disabling tombstone GC on pending replicas. Fixes #21090 Closes scylladb/scylladb#21061 * github.com:scylladb/scylladb: test: test tombstone GC disabled on pending replica tablet_storage_group_manager: update tombstone_gc_enabled in compaction group database::table: add tombstone_gc_enabled(locator::tablet_id)
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.