Xen Orchestra

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Subcategories

Management

VMs, hosts, pools, networks and all other usual management tasks.

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Topics

1.0k
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Howdy folks, just curiosity I have staging environments for Production Public VMs I like to test upgrades and changes on staging environments, is it possible to copy a existing Disk to use on another staging Virtual Machine without messing with the existing VM?

Regards
Advanced features

ACLs, Self-service, Cloud-init, Load balancing...

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@igorf said in XOA receipe not creating VIP address (balancer):

Hi,
I have tried to create k8s (v 1.30) cluster several times using Hub-Receipes automation in XOA, and if I chose only one control node, than configuration completes successfully and I can use that cluster.

But if I choose scenario with fault tolerant control planes, than installation is failing and never completes, only first control plane is being created (only one VM for k8s is created), and in VM logs I can see that control node is trying to connect to VIP address (balancer) which does not exist. VM for VIP/balancer is never being created automatically.
Did I miss something? Should VIP (balancer) be automatically created/configured, or do I need to create it first manually?
I was trying to find more documentation on this subject but I was unlucky in finding it.

XOA is on version : 5.93.1 - XOA build: 20240401
XCP-NG is on 8.3 beta 2

Can you please advise how to proceed if I want to have fault tolerant k8s cluster?
Thank you in advance and best regards, Igor

Hello,

Can you please send the output of /var/log/cloud-init-output.log?

With regards
Backup

All XO backup features: full and incremental, replication, mirrors...

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@CJ said in Compressed backups:

@olivierlambert Are you referring to the compression ratio when you mention performance? I turned it on for my remote and it tanked my transfer speeds compared to the standard sequential backup.

Since I'm using zfs for my remote, is there a way to turn off compression for the delta backups?

you can turn compression off by setting vhd compression to none instead of brotly in your configuration file ,
[backups] # Mode to use for newly created backup directories vhdDirectoryCompression = 'brotli
writing vhd blocks is often slower than sequential, and compression should not have a lot of impact , but the merging is faster. So the best solution depends on the limiting factor on your infrastructure
(also this storage mode have been made for s3 which do not like modifying the files )
REST API

Everything related to Xen Orchestra's REST API

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Topics

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@Danp No of course i can disable it , okay i will not struggle with it
After disable HA , i could delete it , thanks
Infrastructure as Code

Terraform, Packer or any tool to do IaC

14
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127
Posts

X

looks like it's been taken care of automatically! i'll give it a shot today-tomorrow and confirm

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How Backup Destinations Work

• • neoweb

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Hi,

There's no known mount issue at the moment. You can use SMB or NFS.

XAPI is not able to push files, when you backup, an HTTP handle is created in the dom0, so it has to be fetched by something (XO in this case, or a proxy).
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Error when taking a snapshot in XO

• • nicolai.comar

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@nicolai-comar said in Error when taking a snapshot in XO:

xo-server 5.12.1 and xo-web 5.12.0

Those are really out-of-date. Please update to the latest available versions and try again.
B

Navigate Away from Import VM?

• • busthead

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@busthead If you are importing a VM from your browser, you should not navigate away from XO as it will interrupt the upload. You can navigate to another page of XO though.
C

Device Position in VM

• • Chmura

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Just forget the device, readd in the order you like (first comes at 0 and so on)
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XO from source and CentOS 7

• • bberndt

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I concentrated here, after upgrading my second server:
Error: /lib64/libstdc++.so.6: version `CXXABI_1.3.8' not found (required by /root/xen-orchestra/node_modules/argon2/lib/binding/napi-v3/argon2.node)

I've found circumstantial evidence that this depends on libraries found in newer gcc than is in the Cent OS 7 repo at this time.

strings /usr/lib64/libstdc++.so.6 | grep CXXABI
CXXABI_1.3
CXXABI_1.3.1
CXXABI_1.3.2
CXXABI_1.3.3
CXXABI_1.3.4
CXXABI_1.3.5
CXXABI_1.3.6
CXXABI_1.3.7
CXXABI_TM_1

so argon2.node requires something newer than centos7 can provide?!
and upgrading gcc does the trick? I may have to try when I have more time.
https://stackoverflow.com/questions/63374392/node-module-argon2-usr-lib-x86-64-linux-gnu-libstdc-so-6-version-cxxabi-1

Indeed here is Centos 8.
$ strings /usr/lib64/libstdc++.so.6 | grep CXXABI
CXXABI_1.3
CXXABI_1.3.1
CXXABI_1.3.2
CXXABI_1.3.3
CXXABI_1.3.4
CXXABI_1.3.5
CXXABI_1.3.6
CXXABI_1.3.7
CXXABI_1.3.8
CXXABI_1.3.9
CXXABI_1.3.10
CXXABI_1.3.11
CXXABI_TM_1
CXXABI_FLOAT128

and yes, I understand that XO doesn't target CentOS, but its our 'standard' right now.
A

DR backup - Error: IMPORT_ERROR_PREMATURE_EOF()

• • akurzawa

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@bsodmike Increase memory to node.js as described in the docs under memory management. Adding mem to VM is insufficient in isolation, so my post above may have been misleading (sorry!).
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Cant access xoa on mobile or ipad

• • rj-dsl

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Then change the bundled self signed cert with something else 🙂
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Solved XO Backup Quiesce, VSS - confused

• • normanghenderson

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You are welcome!
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This topic is deleted!

• • shorian

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No one has replied
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Bulk VM migration

• • brezlord

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@olivierlambert I think that the default behavior should be VMs stay on the SR that they are on. If you are taking a host down and moving the VMs to another host why would you move the VM storage location, that defeats one of the reasons you use shared storage.
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Virtual keybord doesn't show

• • ronaldolins

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Hi,

See https://github.com/vatesfr/xen-orchestra/issues/1426
fufroma created this issue in vatesfr/xen-orchestra open Virtual keyboard for console #1426
C

OVA import does not import VHD

• • capeschools

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@capeschools Just as an FYI to complete the thread - VT is enabled by default on the HPE server.
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XO won't reconnect to rebooted hosts?

• • donsizemore

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Yes, that's the plan: involving community for feedback. But keep in mind we don't want to make a clone of XenCenter 🙂

It's a web application, so it comes with some perks but also drawbacks from a heavy client (you are running in a browser with XO, and we don't want to change all web behavior without necessity to do it).

Thanks for the feedback 🙂 (so feature wise I think we are at parity level, UI it's another story I agree)
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Help with task message Xapi#getResource

• • fred974

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@olivierlambert said in Help with task message Xapi#getResource:

It will clear itself after 24h tops.

Thank you for your reply
H

build XOA from source on host

• • Hescominsoon

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It's not a matter of believing, it's a matter of providing a way to reproduce the issue 😉 It's really hard to fix something if:
we aren't aware of the issue we can't reproduce it
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Remove XOA from xcp-ng host

• • Hescominsoon

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I'm never using the TUI, so I might thought it was there.

Anyway, use xe CLI, you got autocompletion with it and it's very powerful. See the ref in our doc for more details: https://xcp-ng.org/docs/cli_reference.html

You can use the search for more details (eg search for vm destroy)
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Merge process to S3 is slow for one host

• • Jsawyer77

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That's probably why it's slow. Pinging @nraynaud too
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Orphan VDIs

• • tjcool17

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Backup keep failing

• • fred974

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Not enough space means not enough space to coalesce, and therefore XO will prevent to continue and fill entirely your storage because of uncoalesced chains.
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Feature suggestion: attach an existing SR in XO

• • peder

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@tonyp90 I did file a feature suggestion, https://github.com/vatesfr/xen-orchestra/issues/4273 , but not a bug report.

I'm using the xsconsole on the xcp-ng server itself in the few cases where I need to re-attach an SR.
gitterdude created this issue in vatesfr/xen-orchestra open Reattach SR icon is non-obvious #4273

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Solved XO Backup Quiesce, VSS - confused

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