[RELEASE] ScyllaDB Enterprise 2022.2.8

Release Notes
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The ScyllaDB team announces ScyllaDB Enterprise 2022.2.8, a bug-fix production-ready ScyllaDB Enterprise patch release for ScyllaDB Enterprise 2022.2.

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The following issues are fixed in this release (with an open-source reference, if available):

  • Alternator: Scylla Enterprise 2022.2.0 prompts Alternator TTL to production. It was not enabled by default. Now it is. #12037.
  • Setup: fix a regression in setup, which overrides the manual update of perftune.yaml #11385 #10121
  • Setup: updates in perftune.py, improving performance for larger servers (32 cores and above)
    • introduce a generic auto_detect_irq_mask(cpu_mask) function
    • auto-select the same number of IRQ cores on each NUMA
  • Stability: ALTER KEYSPACE can break tables with UDT columns #14139 (introduced in 2022.2)
  • Stability: Crash on compaction completion when staging directory is reshaped and ICS ends up with a run containing staging and non-staging files.
  • Stability: Shutting down auth service may hang #13545
  • Stability: ‘sleep_aborted’ error during Scylla shutdown #13374
  • Stability: possible use-after-move in virtual table for secondary indexes #13396
  • Stability: possible use-after-move when initializing row cache with dummy entry #13400
  • Stability: possible use-after-move in virtual table for secondary indexes #13396
  • Stability: possible use-after-move when making streaming reader #13397
  • Stability: possible use-after-move when reading from SSTable in reverse #13394
  • Stability: possible use-after-move when tracking view builder progress #13395
  • Performance: Compaction manager “periodic reevaluation” is one-off. This means that compaction was not kicking in later for a table, with low to none write activity, that had expired data 1 hour from now. #13430
  • Performance: Compaction manager can cause reactor stalls during periodic submission #12390
  • Performance: ScyllaDB uses an interval map data structure from the Boost library to quickly locate sstables needed to service a read. Due to the way we interface with the library, updating the interval map was unnecessarily slow. This is now fixed. #11669
  • Performance: SSTable set is left uncompacted post off-strategy compaction completion, which may lead to suboptimal read and space amplification until the next compaction #13429
  • UX: non informative iotune warnings in scylla_kernel_check #13373