035aa90d4b
This series fixes a metrics visibility gap in Alternator and adds regression coverage. Until now, BatchGetItem and BatchWriteItem updated global latency histograms but did not consistently update per-table latency histograms. As a result, table-level latency dashboards could miss batch traffic. It updates the batch read/write paths to compute request duration once and record it in both global and per-table latency metrics. Add the missing tests, including a metric-agnostic helper and a dedicated per-table latency test that verifies latency counters increase for item and batch operations. This change is metrics-only (no API/behavior change for requests) and improves observability consistency between global and per-table views. Fixes #28721 **We assume the alternator per-table metrics exist, but the batch ones are not updated** Closes scylladb/scylladb#28732 * github.com:scylladb/scylladb: test(alternator): add per-table latency coverage for item and batch ops alternator: track per-table latency for batch get/write operations
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.