This short report brings to light some interesting commits to scylla-cluster-tests.git master from the last week. Commits in the ad7b99ba…0b36672f range are covered.
There were 42 non-merge commits from 11 authors in that period. Some notable commits:
Loaders on AWS, GCE, and Azure were switched to Ubuntu26 images.
Rolling upgrade jobs were consolidated onto the YAML-driven trigger matrix system replacing the old XML-based weekly trigger and serving both cron runs and scylla-pkg release triggers.
Microbenchmark tests got latency decorator error thresholds defining fixed limits on allocs/cpu-cycles/instructions per op for amd64 and x86 read/write workloads.
A new experimental logstor performance pipeline using Latte was also added, running a mixed 30/70 write/read workload on a 4-node i4i.4xlarge cluster with simulated racks and rack-aware loaders.
The CS-to-Scylla migrator switched its EMR provisioning to native Spark 4.x now that Spark 4.0 is GA on EMR, keeping the old bootstrap/script-runner path available behind a new config flag for cases that still need it.
cassandra-stress was bumped to v3.21.0, enriching read-validation error messages with diagnostic detail.
See you in the next issue of last week in scylla-cluster-tests.git master!