Vitastor 1.4.4 released

2024-02-11

A couple of fixes for EC pools

  • Fix a segfault possible on partial EC overwrite in 1234 -> 5030 rebalance scenario
  • Fix two problems leading to EC pools stalling on rebalance & parallel sudden stops of OSDs, for example during a sudden poweroff of a host:
    • Recovery auto-tuning (1.4.0 feature) could apply too large delays and stall the EC journal - fixed by limiting delays with a new recovery_tune_sleep_cutoff_us parameter (10 seconds by default) and applying recovery pauses before write operations, not after them, to not occupy space in the journal for long time
    • Dynamic journal space reservation (1.3.0 feature) wasn’t accounting new writes when checking the limit so OSDs could still fill the journal fully and stall - fixed by including new writes into the limit
  • Print etcd dbSize instead of dbSizeInUse in status