Last week in scylla-cluster-tests.git master (issue #107; 2025-09-12)

This short report brings to light some interesting commits to scylla-cluster-tests.git master from the last week. Commits in the d14017d8…719aa45b range are covered.

There were 20 non-merge commits from 11 authors in that period. Some notable commits:

A CI for validating xcloud provisioning was introduced, enabling automatic checks on PRs that touch xcloud-related machinery.

The cassandra-harry image was updated to build with Java 21, fixing the “cgroup v2 NullPointerException in containers” error.

Repository cleanup removed several long-unused items: CMakeLists.txt, tox.ini, unused tests, and queries-limits.

Latte was bumped to 0.33.0-scylladb, adding the ability to choose serial consistency for LWT. Example: --serial-consistency=LOCAL_SERIAL --consistency=LOCAL_QUORUM .

Performance regression tests for Alternator were added, covering read, write, and mixed scenarios for CQL (baseline), Alternator default, and Alternator with forced LWT.

Scylla Cloud backend improvements: VPC peering support between Scylla Cloud clusters and SCT infrastructure and dynamic CIDR allocation for new clusters to avoid route conflicts.

See you in the next issue of last week in scylla-cluster-tests.git master!