This series fixes an issue where histogram Summaries return an infinite value. It updated the quantile calculation logic to address cases where values fall into the infinite bucket of a histogram. Now, instead of returning infinite (max int), the calculation will return the last bucket limit, ensuring finite outputs in all cases. The series adds a test for summaries with a specific test case for this scenario. Fixes #20255 Need backport to 6.0, 6.1 and 2023.1 and above (cherry picked from commit011aa91a8c) (cherry picked from commit644e6f0121) Refs #20257 Closes scylladb/scylladb#20304 * github.com:scylladb/scylladb: test/estimated_histogram_test Add summary tests utils/histogram.hh: Make summary support inifinite bucket.
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.