Vitastor 1.6.0 released

2024-04-09

Hierarchical failure domains, handling of 100% full OSDs, nbd-netlink and more.

New features

  • Implement “hierarchical failure domains” and other complex distribution rules, for example EC 4+2 over 3 DC, with 2 chunks per each DC (level_placement).
  • Make OSDs handle ENOSPC - now cluster stays online even if some OSDs fill up to 100 %, only writes requiring free space hang
  • Implement Stage/Unstage & volume locking for CSI to prevent parallel mounting and/or modifications of the same volume
  • Warn about full and almost full OSDs in vitastor-cli status
  • Add an experimental NBD netlink map mode as an option (documentation)
  • Add --pg parameter to vitastor-cli describe, print objects with 0x in human-readable format too
  • Add administration docs

Bug fixes

  • Fix client operation retry timeout - previously the timeout wasn’t applied and writes were retries almost instantly
  • Fix monitors crashing on invalid pool configurations
  • Fix journaling - make each journal write wait for all previous journal writes
  • Fix monitor thinking that OSD weight is 0 after deleting /osd/config/ key online
  • Fix a write stall caused by flusher possibly not trimming journal on rollback
  • Set 32k csum_block_size for HDD by default in vitastor-disk