CAUTION! This version is not fool proof yet. If you purge data of an OSD by
overwriting the disk with zeroes and restart it then the same data will also
be removed from other replicas :-).
I plan to add protection from this situation before merging it into master.
The idea is to make each OSD store a random "cookie" on disk and remove itself
from history automatically if the cookie doesn't match.
- Fix vitastor-cli rm/rm-data broken in 0.8.6 (missing messenger initialization)
- Prepare OSD read handler for upcoming version with scrub - allow "secondary reads" to return errors
- Fix OSDs re-peering PGs infinitely with a big number of PGs (reproduced in test_add_osd)
- Fix another variant of flusher sync-waiting stall (reproduced in test_write)
- Fix other tests in tests/ (will add them to Gitea CI soon)
- Add patches for QEMU 6.2-8.0
- Fix QEMU driver compatibility with QEMU 8.0
- Build packages for RHEL 9 clones (based on AlmaLinux 9)
This release includes a bunch of important bugfixes for erasure-coded setups
with disabled immediate_commit. After these fixes, "test_heal" OSD killing test
now passes fine with EC:
- Fix cluster write stalls with "Error while doing flush on OSD xx: -16 (Device or resource busy)"
in OSD logs possible in EC setups with disabled immediate_commit by selectively
syncing nonsynced objects on STABILIZE/ROLLBACK (https://github.com/vitalif/vitastor/issues/51)
- Fix other EC + disabled immediate_commit problems:
- Fix "opcode=5 retval=-2" errors happening on SYNC retries
- Fix non-working "pagination" during PG dirty object flushing
- Fix write operations not continued correctly after dirty object flushing
- Fix incorrect parity read-modify-write calculation when writing into a lost chunk
- Fix OSDs losing left_on_dead PG state of non-clean PGs and thus not removing junk data in the cluster
- Fix a small memory leak caused by bad indexing of EC recovery matrices
- Fix a rare use-after-free in cluster_client caused by a reenterability issue
- Fix vitastor-cli create command syntax in the CSI driver
- Allow to start OSDs without local store for tests
- Fix memory allocation error in disk_tool_meta for non-standard metadata block sizes
- Fix delete operations received before loading pool metadata crashing OSDs with "null pointer exception"
- Improve "theoretical performance" Russian documentation
New features:
- Implement online configuration update for some parameters. Documentation is coming soon :)
Important fixes:
- Fix possibly incorrect EC parity chunk updates with EC n+k, k > 1 and when
the first parity chunk is missing
Minor fixes and improvements:
- Fix incorrect EC free space statistics in vitastor-cli df output
- Speedup vitastor-cli startup in clusters with RDMA
- Remove unused PG "peered" state (previously used to update PG epoch)
- Use sfdisk with just --json in vitastor-disk (--dump --json isn't needed)
- Allow trailing comma in sfdisk output (fixes sfdisk 2.36 compatibility)
- Slightly improve RDMA send/receive code
- Reduce RDMA memory consumption by default (rdma_max_recv/send = 16/8)
- Use vitastor-cli instead of direct etcd interaction in the CSI driver