dc7944ce5c
vector_search: Fix error handling and status parsing
This change addresses two issues in the vector search client that caused
validator test failures: incorrect handling of 5xx server errors and
faulty status response parsing.
1. 5xx Error Handling:
Previously, a 5xx response (e.g., 503 Service Unavailable) from the
underlying vector store for an `/ann` search request was incorrectly
interpreted as a node failure. This would cause the node to be marked
as down, even for transient issues like an index scan being in progress.
This change ensures that 5xx errors are treated as transient search
failures, not node failures, preventing nodes from being incorrectly
marked as down.
2. Status Response Parsing:
The logic for parsing status responses from the vector store was
flawed. This has been corrected to ensure proper parsing.
Fixes: SCYLLADB-50
Backport to 2025.4 as this problem is present on this branch.
Closes scylladb/scylladb#27111
* github.com:scylladb/scylladb:
vector_search: Don't mark nodes as down on 5xx server errors
test: vector_search: Move unavailable_server to dedicated file
vector_search: Fix status response parsing
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.