A bunch of monitor fixes
- Add noout flag for OSDs (/vitastor/config/osd/xx)
- Fix "effective" size of degraded PGs (and thus "used space") calculation in monitor
- Fix monitor not clearing PGs of deleted pools
- Fix incorrect PG generation with hosts with 0 OSDs
- Fix monitor crashing during primary OSD recheck when pool has no PGs
- Fix monitor crashing when node_placement included non-existing OSDs
- Fix possible data movement after removing OSDs reweighted to 0
- Remove extra empty keys from pool configurations created by vitastor-cli create-pool
- Fix 32-bit build
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 ([documentation](docs/config/pool.en.md#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](docs/usage/nbd.en.md))
- Add --pg parameter to vitastor-cli describe, print objects with 0x in human-readable format too
- Add [administration docs](docs/usage/admin.en.md)
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
After half a year of hard work, VitastorFS is finally here ! :-)
New features:
- VitastorFS, a full-featured clustered (read-write-many) file system.
Documentation: [VitastorFS](docs/usage/nfs.en.md)
- Embedded key-value database implementation based on Parallel Optimistic B-Tree
algorithm and used for the metadata of VitastorFS
- Pool management commands in vitastor-cli (create-pool, list-pools, rm-pool, modify-pool).
Thanks MIND Software (https://mindsw.io) for their contribution!
[Documentation](docs/usage/cli.en.md#create-pool)
Bug fixes:
- Fix a very rare "infinite loop" in the client library
- Fix a rare OSD hang on during start when zeroing out bad metadata entries left from the previous run
- Do not use \r if output is not a terminal (should fix unexpected job output in proxmox)
- Fix rm/rm-data error return code, add --down-ok option to bypass the error
- Add EIO retry timeout and allow to disable these retries, rename up_wait_retry_interval to client_retry_interval
- Add ubuntu jammy build
- Wait for blockstore initialisation before starting OSD (prevent timeouts when init takes time)
- Fix a rare use-after-free in automatic sync after delete in blockstore
- Fix another old "BUG: Attempt to overwrite used offset" in a very simple
case: bs=4k rw=write iodepth=16 from OSD start; add this case to tests
- Fix a rare crash with "unexpected state during flush: 0x51" possible with
EC since 1.4.2 during rebalance and OSD outages
- Fix a rare write stall with EC & immediate_commit=none caused by sync
operations reserving unneeded space in the journal
- Fix 32-bit build warnings, most in printf/scanf format strings
Unwavering stabilization of 1.4.x, continued :-)
- Include the accidentally lost part of 1.4.5 journal trimming fix
- Fix a possible OSD crash with "BUG: Attempt to overwrite used offset"
which was probably present for long time, but became apparent after
fixing flapping tests in CI
- Fix remaining flapping tests in CI. It was the first time when tests
actually passed without retries :-)
- Fix a write stall caused by incorrect journal trimming introduced in 1.4.4 :)
- Fix PGs sometimes hanging in "starting" state on mass OSD restarts
- Fix a rare crash with "map::at" during OSD pings
- Use new defaults for non-capacitor (desktop) SSDs - improves T1Q256 random write from ~6k iops to ~45k iops
- Make journal_trim_interval configurable
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
Hotfix for hotfix O:-)
- "Write stall fix" was incomplete and EC write stalls could
continue even on 1.4.2. Now they're finally fixed O:-)
- Make monitor ignore statistics of stopped OSDs. Previously if you stopped all
OSDs the last total I/O numbers would remain the same indefinitely
- Log to systemd by default
- Fix excessive autosyncs after every operation with disabled immediate_commit (introduced in 1.1.0)
- Fix a possible write stall with EC due to the lack of OSD wakeup after stabilizing previous writes
- Change sync operation semantics as a final fix to possible write stalls with EC and disabled immediate_commit
- Sync after deleting data in CLI rm / rm-data if immediate_commit is disabled
- Fix OSDs ignoring syncs & autosyncs for delete operations
- Fix OSD space reporting sometimes adding garbage zeros for deleted inodes (causing extra pool/stats etcd keys for deleted pools)
- Speed up monitor failover - change default etcd_mon_ttl from 30 to 5 seconds
- Speed up operation retries - change default up_wait_retry_interval to 50 ms
- Add patch for libvirt 9.10
- Fix a monitor crash on primary OSD switching introduced in 1.4.0
- Fix "partly outside array bounds" warnings for GCC 12 in cpp-btree
- Fix a realloc memory leak in theory possible with too large listings (OSD_OP_LIST)
Vitaliy Filippov