The coordinator can receive a schema-change notification after run()
finishes but before stop() unregisters listeners. The test pins that
window with error injections and verifies stop() waits for the refresh
instead of letting it outlive the coordinator.
Test time in dev: 9.51s
Refs SCYLLADB-1728
Tests that override disk capacity via the data_file_capacity config
option trigger the disk space monitor's critical utilization mode and
as a consequence activate out-of-space prevention mechanisms.
This will cause bootstrap failures with critical_disk_utilization_exception
during mutation-based streaming introduced later in the series.
Enable the `suppress_disk_space_threshold_checks` error injection at
startup in the affected tests to prevent the disk space monitor from
interfering with the test-configured capacity values.
Affected tests:
- test_balance_empty_tablets (test/cluster/test_size_based_load_balancing.py)
- test_load_stats_on_coordinator_failover (test/cluster/test_tablet_stats.py)
Finishing the deprecation of the skip_mode function in favor of
pytest.mark.skip_mode. This PR is only cleaning and migrating leftover tests
that are still used and old way of skip_mode.
Closesscylladb/scylladb#28299
Function skip_mode works only on function and only in cluster test. This if OK
when we need to skip one test, but it's not possible to use it with pytestmark
to automatically mark all tests in the file. The goal of this PR is to migrate
skip_mode to be dynamic pytest.mark that can be used as ordinary mark.
Closesscylladb/scylladb#27853
[avi: apply to test/cluster/test_tablets.py::test_table_creation_wakes_up_balancer]
This commits introduces an config option 'tablet_load_stats_refresh_interval_in_seconds'
that allows overriding the default value without using error injection.
Fixesscylladb/scylladb#24641Closesscylladb/scylladb#24746
Can be used to query per-node stats about load as seen by the load
balancer.
In particular, node's capacity will be used by tablet-mon.py to
scale tablet columns so that equal height is equal node utilization.
