[RELEASE] ScyllaDB 5.1.2

The ScyllaDB team announces ScyllaDB Open Source 5.1.2, a bugfix release of the ScyllaDB 5.1 stable branch. ScyllaDB Open Source 5.1.2, like all past and future 5.x.y releases, is backward compatible and supports rolling upgrades.

Users are encouraged to upgrade to 5.1.2.

Related links:

Issues fixed in this release:

  • Alternator: regression tests:

    • Most Alternator TTL regression tests are skipped by default and should not be #11374
    • Test test_metrics.py::test_ttl_stats sometimes timeouts on debug build #11695
  • Stability: use-after-free in db/view row_locker #12168

  • Stability: [index cache] Multiple 800ms+ reactor stalls during nodetool cleanup (with index cache disabled) due to the local index cache not evicted gently when _upper_bound existed. #12271

  • CQL: in Scylla, returning incomplete results when using paging #12361 (introduced in 5.1.0 and 5.07). The issue manifests only in specific circumstances: when a page starts with a dead row. This page (and consequently the query) will be wrongfully terminated immediately. In 5.1 this has to be a row covered by the partition tombstone.