From 506e09994516c55a0910be5e994954f51187a1c9 Mon Sep 17 00:00:00 2001
From: Raito Bezarius <masterancpp@gmail.com>
Date: Fri, 5 Aug 2022 18:52:06 +0200
Subject: [PATCH] monitoring: move to tiered dbengine with netdata nightly

---
 machines/core-services-01/monitoring.nix | 35 +++++++++++++++++++-----
 1 file changed, 28 insertions(+), 7 deletions(-)

diff --git a/machines/core-services-01/monitoring.nix b/machines/core-services-01/monitoring.nix
index 3aa17e9..2a8ac5f 100644
--- a/machines/core-services-01/monitoring.nix
+++ b/machines/core-services-01/monitoring.nix
@@ -34,7 +34,19 @@ let
   };
 in
 {
-  services.netdata.enable = true;
+  services.netdata = {
+    enable = true;
+    package = pkgs.netdata.overrideAttrs (old: {
+      version = "1.35.0-nightly";
+      src = pkgs.fetchFromGitHub {
+        owner = "netdata";
+        repo = "netdata";
+        rev = "955d1a7c61f4eab802648d563f84d978ebeb8fc4";
+        sha256 = "sha256-gN44Df+k384NummsHls2JY1CinBaFK3cpdmmdZMbA44=";
+        fetchSubmodules = true;
+      };
+    });
+  };
 
   # Allow WireGuard VPN
   networking.firewall.allowedUDPPorts = [ 51820 ];
@@ -70,9 +82,18 @@ in
     group = "netdata";
     mode = "0600";
     text = ''
-      [global]
-      page cache size = 32
-      dbengine multihost disk space = 23058
+      [db]
+      mode = dbengine
+      storage tiers = 3
+      update every = 1
+      dbengine multihost disk space MB = 23000
+      dbengine page cache size MB = 384
+      dbengine tier 1 update every iterations = 60
+      dbengine tier 1 multihost disk space MB = 10000
+      dbengine tier 1 page cache size MB = 384
+      dbengine tier 2 update every iterations = 3600
+      dbengine tier 2 multihost disk space MB = 5000
+      dbengine tier 2 page cache size MB = 384
     '';
   };
 
@@ -150,9 +171,9 @@ in
         proxyPass = "http://localhost:19999";
         extraConfig = ''
           # For large authentication-authorization headers
-          proxy_buffer_size          256k;
-          proxy_buffers              4 512k;
-          proxy_busy_buffers_size    512k;
+          proxy_buffer_size          128k;
+          proxy_buffers              4 256k;
+          proxy_busy_buffers_size    256k;
         '';
       };
     };