Vitastor 1.4.7 released

• 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

2024-02-22 Continue reading →

Vitastor 1.4.6 released

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 :-)

2024-02-20 Continue reading →

Vitastor 1.4.5 released

• 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

2024-02-16 Continue reading →

Vitastor 1.4.4 released

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

2024-02-11 Continue reading →

Vitastor 1.4.3 released

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

2024-02-09 Continue reading →

Vitastor 1.4.2 released

• 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

2024-02-04 Continue reading →

Vitastor 1.4.1 released

• 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)

2024-01-18 Continue reading →

Vitastor 1.4.0 released

New features

• Intelligent recovery/rebalance speed auto-tuning to reduce its impact on clients (see README -> Features)
• Auto-restoration of dead VDUSE daemons in CSI plugin
• Add vitastor-disk update-sb command
• Update QEMU for Debian Bookworm to 8.1 and use it for CSI plugin

2024-01-12 Continue reading →

Vitastor 1.3.0 released

New features

• Added RDMA without ODP support - much faster and all cards are now supported, not just Mellanox
• VDUSE in CSI - faster, more stable and can even recover after CSI pod restart!
• Reserve journal space for stabilize requests dynamically to prevent stalls under load with EC
• Raise default NBD timeout from 30 to 300 seconds and allow to take it from /etc/vitastor/vitastor.conf
• Remove explicit etcdUrl/etcdPrefix K8S storage class parameter support to prevent etcd migration issues for volumes created with these parameters
• Support QEMU 8.1 and pve-qemu 8.1

2023-12-04 Continue reading →

Vitastor 1.3.1 released

Hotfix to 1.3.0 - new “journal space reservation” had a bug which caused OSDs to crash with EC and without immediate_commit.

2023-12-04 Continue reading →