From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: <f.ebner@proxmox.com> Received: from firstgate.proxmox.com (firstgate.proxmox.com [212.224.123.68]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits)) (No client certificate requested) by lists.proxmox.com (Postfix) with ESMTPS id CFA158E0E1 for <pve-devel@lists.proxmox.com>; Thu, 10 Nov 2022 15:38:19 +0100 (CET) Received: from firstgate.proxmox.com (localhost [127.0.0.1]) by firstgate.proxmox.com (Proxmox) with ESMTP id BC04B290D9 for <pve-devel@lists.proxmox.com>; Thu, 10 Nov 2022 15:38:18 +0100 (CET) Received: from proxmox-new.maurer-it.com (proxmox-new.maurer-it.com [94.136.29.106]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits)) (No client certificate requested) by firstgate.proxmox.com (Proxmox) with ESMTPS for <pve-devel@lists.proxmox.com>; Thu, 10 Nov 2022 15:38:14 +0100 (CET) Received: from proxmox-new.maurer-it.com (localhost.localdomain [127.0.0.1]) by proxmox-new.maurer-it.com (Proxmox) with ESMTP id 5099F44B89 for <pve-devel@lists.proxmox.com>; Thu, 10 Nov 2022 15:38:07 +0100 (CET) From: Fiona Ebner <f.ebner@proxmox.com> To: pve-devel@lists.proxmox.com Date: Thu, 10 Nov 2022 15:38:00 +0100 Message-Id: <20221110143800.98047-22-f.ebner@proxmox.com> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20221110143800.98047-1-f.ebner@proxmox.com> References: <20221110143800.98047-1-f.ebner@proxmox.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-SPAM-LEVEL: Spam detection results: 0 AWL -0.022 Adjusted score from AWL reputation of From: address BAYES_00 -1.9 Bayes spam probability is 0 to 1% KAM_DMARC_STATUS 0.01 Test Rule for DKIM or SPF Failure with Strict Alignment PROLO_LEO2 0.1 Meta Catches all Leo drug variations so far SPF_HELO_NONE 0.001 SPF: HELO does not publish an SPF Record SPF_PASS -0.001 SPF: sender matches SPF record Subject: [pve-devel] [PATCH docs 1/1] ha: add section about scheduler modes X-BeenThere: pve-devel@lists.proxmox.com X-Mailman-Version: 2.1.29 Precedence: list List-Id: Proxmox VE development discussion <pve-devel.lists.proxmox.com> List-Unsubscribe: <https://lists.proxmox.com/cgi-bin/mailman/options/pve-devel>, <mailto:pve-devel-request@lists.proxmox.com?subject=unsubscribe> List-Archive: <http://lists.proxmox.com/pipermail/pve-devel/> List-Post: <mailto:pve-devel@lists.proxmox.com> List-Help: <mailto:pve-devel-request@lists.proxmox.com?subject=help> List-Subscribe: <https://lists.proxmox.com/cgi-bin/mailman/listinfo/pve-devel>, <mailto:pve-devel-request@lists.proxmox.com?subject=subscribe> X-List-Received-Date: Thu, 10 Nov 2022 14:38:19 -0000 briefly describing the 'basic' and 'static' modes and with a note mentioning plans for balancers. Signed-off-by: Fiona Ebner <f.ebner@proxmox.com> --- ha-manager.adoc | 27 +++++++++++++++++++++++++++ 1 file changed, 27 insertions(+) diff --git a/ha-manager.adoc b/ha-manager.adoc index 54db2a5..dfed393 100644 --- a/ha-manager.adoc +++ b/ha-manager.adoc @@ -933,6 +933,33 @@ NOTE: Please do not 'kill' services like `pve-ha-crm`, `pve-ha-lrm` or immediate node reboot or even reset. +Scheduler Mode +-------------- + +The scheduler mode controls how HA selects nodes during recovery of a service. +The default mode is `basic`, you can change it in `datacenter.cfg`: + +---- +crs: ha=static +---- + +For each service that needs to be recovered, the scheduler iteratively chooses +the best node among the nodes with the highest priority in the service's group. + +NOTE: There are plans to add modes for (static and dynamic) load-balancing in +the future. + +Basic +^^^^^ + +The number of active HA serivces on each node is used to choose a recovery node. + +Static +^^^^^^ + +Static usage information from HA serivces on each node is used to choose a +recovery node. In particular, CPU and memory configuration is considered. + ifdef::manvolnum[] include::pve-copyright.adoc[] endif::manvolnum[] -- 2.30.2