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A contender compared the lock object's `Last-Modified`, set by the provider's clock, with `Date.now()`, XO's clock. With XO's clock more than 2.5 minutes ahead of the provider's, a lock whose holder rewrites it every 30 seconds looked older than `STALE_AFTER` and was taken over; with XO's clock behind, a stale lock was taken over late. The SDK corrects its own clock only once it is 5 minutes off, so it does not prevent this. The age is now `Last-Modified` against the `Date` header of the HEAD response, both set by the provider's clock. The output of a HEAD has no `Date`, so a middleware of the command reads it from the response. A provider which omits either header never lets the lock be taken over, as it was already for `Last-Modified`.
Xen Orchestra
Manage, Backup and Cloudify your XCP-ng/XenServer infrastructure
XO (Xen Orchestra) is a complete solution to visualize, manage, backup and delegate your XCP-ng (or XenServer) infrastructure. No agent is required for it to work.
It provides a web UI, a CLI and a REST API, while also getting a Terraform provider among other connectors/plugins.
⚡️ Quick start
Log in to your account and use the deploy form available from the Vates website.
📚 Documentation
The official documentation is available at https://docs.xen-orchestra.com/
Documentation updates are deployed automatically once per day.
🚀 Features
- Centralized interface: one Xen Orchestra to rule your entire infrastructure, even across datacenters at various locations
- Administration and management: VM creation, management, migration, metrics and statistics, XO proxies for remote sites… XO will become your best friend!
- Backup & Disaster Recovery: The backup is an essential component for the security of your infrastructure. With Xen Orchestra, select the backup mode that suits you best and protect your VMs and your business. Rolling snapshot, Full backup & replication, incremental backup & replication, mirror backup, S3 support among many other possibilities!
- Cloud Enabler: Xen Orchestra is your cloud initiator for XCP-ng (and XenServer). Group management, resource delegation and easy group administration. The Cloud is yours!
🌍 Translations
Status of XO Lite & XO 6:
Help us translate Xen Orchestra in more languages!
📸 Screenshots
License
AGPL3 © Vates