Vitaliy Filippov
a612cdca47
- 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 |
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| .gitea/workflows | ||
| cpp-btree@45e6d1f131 | ||
| csi | ||
| debian | ||
| docker | ||
| docs | ||
| json11@fd37016cf8 | ||
| mon | ||
| patches | ||
| rpm | ||
| src | ||
| tests | ||
| .dockerignore | ||
| .gitignore | ||
| .gitmodules | ||
| CMakeLists.txt | ||
| GPL-2.0.txt | ||
| LICENSE | ||
| README-ru.md | ||
| README.md | ||
| VNPL-1.1-RU.txt | ||
| VNPL-1.1.txt | ||
| copy-fio-includes.sh | ||
| copy-qemu-includes.sh | ||
README.md
Vitastor
The Idea
Make Clustered Block Storage Fast Again.
Vitastor is a distributed block SDS, direct replacement of Ceph RBD and internal SDS's of public clouds. However, in contrast to them, Vitastor is fast and simple at the same time. The only thing is it's slightly young :-).
Vitastor is architecturally similar to Ceph which means strong consistency, primary-replication, symmetric clustering and automatic data distribution over any number of drives of any size with configurable redundancy (replication or erasure codes/XOR).
Vitastor targets SSD and SSD+HDD clusters with at least 10 Gbit/s network, supports TCP and RDMA and may achieve 4 KB read and write latency as low as ~0.1 ms with proper hardware which is ~10 times faster than other popular SDS's like Ceph or internal systems of public clouds.
Vitastor supports QEMU, NBD, NFS protocols, OpenStack, Proxmox, Kubernetes drivers. More drivers may be created easily.
Read more details below in the documentation.
Talks and presentations
- DevOpsConf'2021: presentation (in Russian, in English), video
- Highload'2022: presentation (in Russian), video
Documentation
- Introduction
- Installation
- Configuration
- Usage
- vitastor-cli (command-line interface)
- vitastor-disk (disk management tool)
- fio for benchmarks
- NBD for kernel mounts
- QEMU and qemu-img
- NFS emulator for VMWare and similar
- Performance
Author and License
Copyright (c) Vitaliy Filippov (vitalif [at] yourcmc.ru), 2019+
Join Vitastor Telegram Chat: https://t.me/vitastor
All server-side code (OSD, Monitor and so on) is licensed under the terms of Vitastor Network Public License 1.1 (VNPL 1.1), a copyleft license based on GNU GPLv3.0 with the additional "Network Interaction" clause which requires opensourcing all programs directly or indirectly interacting with Vitastor through a computer network and expressly designed to be used in conjunction with it ("Proxy Programs"). Proxy Programs may be made public not only under the terms of the same license, but also under the terms of any GPL-Compatible Free Software License, as listed by the Free Software Foundation. This is a stricter copyleft license than the Affero GPL.
Please note that VNPL doesn't require you to open the code of proprietary software running inside a VM if it's not specially designed to be used with Vitastor.
Basically, you can't use the software in a proprietary environment to provide its functionality to users without opensourcing all intermediary components standing between the user and Vitastor or purchasing a commercial license from the author 😀.
Client libraries (cluster_client and so on) are dual-licensed under the same VNPL 1.1 and also GNU GPL 2.0 or later to allow for compatibility with GPLed software like QEMU and fio.
You can find the full text of VNPL-1.1 in the file VNPL-1.1.txt. GPL 2.0 is also included in this repository as GPL-2.0.txt.