【数据存储】资源水位：服务器 CPU 与内存的预警线

-- 资源水位：采集与阈值
local player = class(actor)
local THRESH = {
    cpu = {warn = 70, alarm = 85},
    mem = {warn = 70, alarm = 85},
    disk = {warn = 75, alarm = 90},
    conn = {warn = 70, alarm = 85},
}
local function checkResource(player, res, value)
    local t = THRESH[res]
    if t == nil then return end
    if value >= t.alarm then
        sendcentermsg(player, 255, 0, res .. " 资源告警：" .. value .. "%，请立即扩容评估！", 0, 10)
    elseif value >= t.warn then
        sendmsg(player, 1, 0, res .. " 资源预警：" .. value .. "%，已接近告警线。")
    end
end

-- 水位台账：趋势与决策
local player = class(actor)
local function trendDecision(player, res, weekAvg, weekPeak)
    if weekAvg >= THRESH[res].warn and weekPeak >= THRESH[res].alarm then
        setsysvarex("ScalePlan_" .. res, os.date("%Y%W"), true)
        sendmsg(player, 1, 0, res .. " 已列入扩容议程：周均 " ..
            weekAvg .. "%，周峰 " .. weekPeak .. "%。")
        return true
    end
    return false
end