68407a09ed
vector_search: Add backoff for failed nodes Introduces logic to mark nodes that fail to answer an ANN request as "down". Down nodes are omitted from further requests until they successfully respond to a health check. Health checks for down nodes are performed in the background using the `status` endpoint, with an exponential backoff retry policy ranging from 100ms to 20s. Client list management is moved to separate files (clients.cc/clients.hh) to improve code organization and modularity. References: VECTOR-187. Backport to 2025.4 as this feature is expected to be available in 2025.4. Closes scylladb/scylladb#26308 * github.com:scylladb/scylladb: vector_search: Set max backoff delay to 2x read request timeout vector_search: Report status check exception via on_internal_error_noexcept vector_search: Extract client management into dedicated class vector_search: Add backoff for failed clients vector_search: Make endpoint available vector_search: Use std::expected for low-level client errors vector_search: Extract client class
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.