From: Fiona Ebner <f.ebner@proxmox.com>
To: pve-devel@lists.proxmox.com
Subject: [pve-devel] [PATCH v2 docs 2/2] ha: add warning against using 'static' mode with many services
Date: Thu, 17 Nov 2022 15:00:18 +0100 [thread overview]
Message-ID: <20221117140018.105004-18-f.ebner@proxmox.com> (raw)
In-Reply-To: <20221117140018.105004-1-f.ebner@proxmox.com>
In HA manager, the function recompute_online_node_usage() is called
very often currently and the 'static' mode needs to read the guest
configs which adds a bit of overhead.
Signed-off-by: Fiona Ebner <f.ebner@proxmox.com>
---
New in v2.
ha-manager.adoc | 3 +++
1 file changed, 3 insertions(+)
diff --git a/ha-manager.adoc b/ha-manager.adoc
index 038193f..710cbca 100644
--- a/ha-manager.adoc
+++ b/ha-manager.adoc
@@ -966,6 +966,9 @@ The number of active HA serivces on each node is used to choose a recovery node.
Static
^^^^^^
+WARNING: The static mode is still a technology preview. It is not recommended to
+use it if you have thousands of HA managed services.
+
Static usage information from HA serivces on each node is used to choose a
recovery node.
--
2.30.2
next prev parent reply other threads:[~2022-11-17 14:01 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-11-17 14:00 [pve-devel] [PATCH-SERIES v2 ha-manager/docs] add static usage scheduler for HA manager Fiona Ebner
2022-11-17 14:00 ` [pve-devel] [PATCH v2 ha-manager 01/15] env: add get_static_node_stats() method Fiona Ebner
2022-11-17 14:00 ` [pve-devel] [PATCH v2 ha-manager 02/15] resources: add get_static_stats() method Fiona Ebner
2022-11-17 14:00 ` [pve-devel] [PATCH v2 ha-manager 03/15] add Usage base plugin and Usage::Basic plugin Fiona Ebner
2022-11-17 14:00 ` [pve-devel] [PATCH v2 ha-manager 04/15] manager: select service node: add $sid to parameters Fiona Ebner
2022-11-17 14:00 ` [pve-devel] [PATCH v2 ha-manager 05/15] manager: online node usage: switch to Usage::Basic plugin Fiona Ebner
2022-11-17 14:00 ` [pve-devel] [PATCH v2 ha-manager 06/15] usage: add Usage::Static plugin Fiona Ebner
2022-11-17 14:00 ` [pve-devel] [PATCH v2 ha-manager 07/15] env: rename get_ha_settings to get_datacenter_settings Fiona Ebner
2022-11-17 14:00 ` [pve-devel] [PATCH v2 ha-manager 08/15] env: datacenter config: include crs (cluster-resource-scheduling) setting Fiona Ebner
2022-11-17 14:00 ` [pve-devel] [PATCH v2 ha-manager 09/15] manager: set resource scheduler mode upon init Fiona Ebner
2022-11-17 14:00 ` [pve-devel] [PATCH v2 ha-manager 10/15] manager: use static resource scheduler when configured Fiona Ebner
2022-11-17 14:00 ` [pve-devel] [PATCH v2 ha-manager 11/15] manager: avoid scoring nodes if maintenance fallback node is valid Fiona Ebner
2022-11-17 14:00 ` [pve-devel] [PATCH v2 ha-manager 12/15] manager: avoid scoring nodes when not trying next and current " Fiona Ebner
2022-11-17 14:00 ` [pve-devel] [PATCH v2 ha-manager 13/15] usage: static: use service count on nodes as a fallback Fiona Ebner
2022-11-17 14:00 ` [pve-devel] [PATCH v2 ha-manager 14/15] test: add tests for static resource scheduling Fiona Ebner
2022-11-17 14:00 ` [pve-devel] [PATCH v2 ha-manager 15/15] resources: add missing PVE::Cluster use statements Fiona Ebner
2022-11-18 7:48 ` Fiona Ebner
2022-11-18 12:48 ` Thomas Lamprecht
2022-11-17 14:00 ` [pve-devel] [PATCH v2 docs 1/2] ha: add section about scheduler modes Fiona Ebner
2022-11-17 14:00 ` Fiona Ebner [this message]
2022-11-18 13:23 ` [pve-devel] applied-series: [PATCH-SERIES v2 ha-manager/docs] add static usage scheduler for HA manager Thomas Lamprecht
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20221117140018.105004-18-f.ebner@proxmox.com \
--to=f.ebner@proxmox.com \
--cc=pve-devel@lists.proxmox.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox