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From: Daniel Kral <d.kral@proxmox.com>
To: pve-devel@lists.proxmox.com
Subject: [pve-devel] [PATCH ha-manager v2 2/8] manager: remove redundant add_service_usage_to_node from next_state_recovery
Date: Mon, 20 Oct 2025 18:45:32 +0200	[thread overview]
Message-ID: <20251020164540.517231-7-d.kral@proxmox.com> (raw)
In-Reply-To: <20251020164540.517231-1-d.kral@proxmox.com>

Since 5c2eef4b ("account service to source and target during move") a
moving HA resource's load is accounted for on the source and target
nodes.

A HA resource is in the 'recovery' state after a successfully fenced
node and its primary goal becomes to find a recovery node. As soon as a
recovery node is found, the HA resource is moved there. As the previous
node was fenced, there is only load on the recovery node.

The add_service_usage_to_node(...) is redundant at this point as the
subsequent call to change_service_state(...) to either the 'started' or
'request_stop' state will call recompute_online_node_usage(...) and make
the changes to $online_node_usage be discarded immediately.

This calculation will remain true as recompute_online_node_usage(...) in
change_service_state(...) is replaced with a more granular change to
$online_node_usage in a later patch.

Signed-off-by: Daniel Kral <d.kral@proxmox.com>
Reviewed-by: Fiona Ebner <f.ebner@proxmox.com>
---
changes since v1:
 - added info that calculation will hold with later patches
 - added R-b

 src/PVE/HA/Manager.pm | 2 --
 1 file changed, 2 deletions(-)

diff --git a/src/PVE/HA/Manager.pm b/src/PVE/HA/Manager.pm
index 8a1e177d..7e43cfdf 100644
--- a/src/PVE/HA/Manager.pm
+++ b/src/PVE/HA/Manager.pm
@@ -1329,8 +1329,6 @@ sub next_state_recovery {
         $fence_recovery_cleanup->($self, $sid, $fenced_node);
 
         $haenv->steal_service($sid, $sd->{node}, $recovery_node);
-        $self->{online_node_usage}->add_service_usage_to_node($recovery_node, $sid, $recovery_node);
-        $self->{online_node_usage}->add_service_node($sid, $recovery_node);
 
         # NOTE: $sd *is normally read-only*, fencing is the exception
         $cd->{node} = $sd->{node} = $recovery_node;
-- 
2.47.3



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  parent reply	other threads:[~2025-10-20 16:46 UTC|newest]

Thread overview: 20+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-10-20 16:45 [pve-devel] [PATCH ha-manager/perl-rs/proxmox/qemu-server v2 00/12] Granular online_node_usage accounting Daniel Kral
2025-10-20 16:45 ` [pve-devel] [PATCH qemu-server v2 1/1] config: only fetch necessary default values in get_derived_property helper Daniel Kral
2025-10-21 11:47   ` [pve-devel] applied: " Fiona Ebner
2025-10-20 16:45 ` [pve-devel] [PATCH proxmox v2 1/1] resource-scheduling: change score_nodes_to_start_service signature Daniel Kral
2025-10-21 12:14   ` Fiona Ebner
2025-10-20 16:45 ` [pve-devel] [PATCH perl-rs v2 1/2] pve-rs: resource_scheduling: allow granular usage changes Daniel Kral
2025-10-20 16:45 ` [pve-devel] [PATCH perl-rs v2 2/2] test: resource_scheduling: use score_nodes helper to imitate HA Manager Daniel Kral
2025-10-21 12:14   ` Fiona Ebner
2025-10-20 16:45 ` [pve-devel] [PATCH ha-manager v2 1/8] manager: remove redundant recompute_online_node_usage from next_state_recovery Daniel Kral
2025-10-20 16:45 ` Daniel Kral [this message]
2025-10-20 16:45 ` [pve-devel] [PATCH ha-manager v2 3/8] manager: remove redundant add_service_usage_to_node from next_state_started Daniel Kral
2025-10-20 16:45 ` [pve-devel] [PATCH ha-manager v2 4/8] rules: resource affinity: decouple get_resource_affinity helper from Usage class Daniel Kral
2025-10-21 13:02   ` Fiona Ebner
2025-10-20 16:45 ` [pve-devel] [PATCH ha-manager v2 5/8] manager: make recompute_online_node_usage use add_service_usage helper Daniel Kral
2025-10-21 13:06   ` Fiona Ebner
2025-10-20 16:45 ` [pve-devel] [PATCH ha-manager v2 6/8] usage: allow granular changes to Usage implementations Daniel Kral
2025-10-20 16:45 ` [pve-devel] [PATCH ha-manager v2 7/8] manager: make online node usage computation granular Daniel Kral
2025-10-21 13:09   ` Fiona Ebner
2025-10-20 16:45 ` [pve-devel] [PATCH ha-manager v2 8/8] implement static service stats cache Daniel Kral
2025-10-21 13:23   ` Fiona Ebner

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