75b772adfb
Currently, if a new sstable is created during repair/streaming, we invalidate its whole token range in cache. If the sstable is sparse, we unnecessarily clear too much data. Modify cache invalidation, so that only the partitions present in the sstable are cleared. To check whether a partition is present in the sstable, we use bloom filters. Bloom filters may return false positives and show that an sstable contains a partition, even though it does not. Due to that we may invalidate a bit more than we need to, but the cache will be in valid state. An issue arises when we do not invalidate two consecutive partitions that are continuous. The sstable may contain a token that falls between these partitions, breaking the continuity. To check that, we would need to scan sstable index. However, such a change would noticeably complicate the invalidation, both performance and code. In this change, sstable index reader isn't used. Instead, the continuity flag is unset for all scanned partitions. This comes at a cost of heavier reads, as we will need to verify continuity when reading more than one partition from cache. Fixes: https://github.com/scylladb/scylladb/issues/9136. Closes scylladb/scylladb#25996
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++ cqlpy - 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.