- Improve QEMU driver performance by integrating io_uring in it (up to 1.5x total iops improvement)
- Fix QEMU driver deadlocks which started to reproduce in qemu-img after iothread fixes
- Fix `vitastor-cli status` reporting more etcds than actually exists (fix etcd address duplication in config on reload)
- Fix `vitastor-cli ls` crashing on inodes in non-existing pools
- Delete old garbage /pool/stats/ keys for non-existing (deleted) pools
- Reduce memory usage of etcds initialized by make-etcd script
- Fix OSDs almost always crashing on etcd restart due to "revisions were compacted" (support reloading state from etcd)
- Fix a crash and a stall possible mostly in HDD setups with small journal and big (512k, 900k) random writes
- Add notes about HDDs to documentation. You are officially allowed to use HDD-only Vitastor with HGST/Toshiba/EXOS :)
Deadlock was caused by switching QEMU coroutines directly inside
vitastor_co_read_bitmap_cb() callback. The correct way is to schedule a BH
/BH is a QEMU term for setImmediate() :)/, same as in read and write callbacks.
Fixes two bugs found during HDD testing :-)
1) OSD crashed with "BUG: Attempt to overwrite used offset of the journal" during
`fio -bs=900k -iodepth=128` test with 16 MB journal
2) OSD stalled during `fio -bs=512k -iodepth=128` test with 64 MB journal
Before this change, OSDs almost always died when one of the etcds was restarted,
even though the rest of them was still in quorum and the lease was still active
- Add patch for libvirt 9.0
- Add support for Proxmox VE 8.0
- Fix compatibility of the QEMU driver with iothread (QEMU rebuilds are coming)
- Fix vitastor-cli rm-data/rm/merge hanging when some OSDs are down.
Allow deletions in unclean cluster at the cost of some data possibly
"reappearing" when those OSDs start back. In that case you can just repeat
the deletion request using rm-data.
- A bunch of bug fixes for snapshots:
- Fix snapshot reads often not working at all with snapshot chain size > 2
- Fix optimized snapshot data merge (children to parent)
- Fix updating of image name index key during optimized merge
- Fix auto-selection preventing the use of optimized merge with only 1 snapshot
- Fix incorrect CAS retries during snapshot merge
- Fix snapshot merge progress reporting
- Fix primary_read bitmap buffers use-after-free which could lead to
incorrect allocation map reads
- Remove /usr/local/bin path from make-etcd
- Some documentation fixes
- Measure and report scrub I/O statistics in vitastor-cli status
- Make aggregated statistics in vitastor-cli status much smoother
(first derive, then sum instead of first summing and then deriving)
- Fix an old rare bug leading to journal corruption
(try to use scrub if you think you're affected...)
- Do not start EC PGs without at least <data chunks> OSDs in each old set
(prevents spurious read errors with EC during reconnections/restarts)
- Fix failed assert(!scrub_list_op) on OSD restart with pending scrubs
- Fix future planned scrubs not starting because of incorrect time comparison
- Build packages for Debian 12 (Bookworm)
The consequence of this issue was that in some very rare cases (only reproduced
under load in CI when running 4+ tests in parallel) small write data written to
journal could overwrite journal entries.
Also add an assert-type safety check to be able to catch this issue in the
future again in case of a regression.
- Fix "Client XX command out of sync" messages sometimes happening on OSD reconnections
- Fix a bug where EC reads parallel with writes to the same object failed with -ERANGE error
- Slightly reduce the amount of metadata writes during journal flushing
- Correctly unmap NBD volumes when Proxmox forces map_volume use (with SWTPM and maybe some other cases)
New features:
- Scrubbing! Check documentation: [auto_scrub](src/branch/master/docs/config/osd.en.md#auto_scrub)
- Document online-updatable configuration parameters
Bug fixes:
- Fix NaN during PG optimisation if there are nonexisting OSDs in node_placement
- Fix monitor crash on pool deletion
- Clear journal_device and meta_device before initialising the next OSD in automatic mode
- Sync unsynced deletes before overwriting them with a lower version
(reproducted mostly/only after scrubbing)
Vitaliy Filippov