sanbuphy
66b2ba6e45
Fixed 22 ESLint errors across 26 Vue component files: - Removed TypeScript type annotations from ReadingProgress.vue (converted to JS) - Removed unused variables, imports, and duplicate function declarations - Fixed HTML parsing errors (invalid attribute names, unclosed tags) - Added missing :key directives to v-for loops - Fixed duplicate object keys (backgroundImage) - Replaced special characters in comments to avoid parsing issues - Fixed malformed HTML tags (v-else", 003e attributes) All warnings were left unchanged as requested. Build now passes with 0 errors. Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>
758 lines
17 KiB
Vue
758 lines
17 KiB
Vue
<template>
|
||
<div class="health-check-demo">
|
||
<div class="header">
|
||
<div class="title">
|
||
健康检查机制
|
||
</div>
|
||
<div class="subtitle">
|
||
主动探测、被动感知与智能阈值
|
||
</div>
|
||
</div>
|
||
|
||
<!-- 模式选择器 -->
|
||
<div class="mode-selector">
|
||
<button
|
||
v-for="mode in modes"
|
||
:key="mode.key"
|
||
class="mode-btn"
|
||
:class="{ active: currentMode === mode.key }"
|
||
@click="currentMode = mode.key"
|
||
>
|
||
<span class="mode-icon">{{ mode.icon }}</span>
|
||
<span class="mode-name">{{ mode.name }}</span>
|
||
</button>
|
||
</div>
|
||
|
||
<!-- 可视化展示区 -->
|
||
<div class="visualization-area">
|
||
<!-- 负载均衡器 -->
|
||
<div class="lb-node">
|
||
<div class="lb-icon">
|
||
⚖️
|
||
</div>
|
||
<div class="lb-label">
|
||
负载均衡器
|
||
</div>
|
||
<div class="lb-status">
|
||
{{ currentModeData.label }}
|
||
</div>
|
||
</div>
|
||
|
||
<!-- 连接线和健康检查标记 -->
|
||
<div class="connections-layer">
|
||
<div
|
||
v-for="(server, index) in servers"
|
||
:key="index"
|
||
class="connection-line"
|
||
:class="{
|
||
healthy: server.status === 'healthy',
|
||
unhealthy: server.status === 'unhealthy',
|
||
checking: server.status === 'checking'
|
||
}"
|
||
>
|
||
<div
|
||
v-if="server.showPacket"
|
||
class="health-packet"
|
||
>
|
||
{{ server.packetType }}
|
||
</div>
|
||
<div class="health-indicator">
|
||
<span v-if="server.status === 'healthy'">✅</span>
|
||
<span v-else-if="server.status === 'unhealthy'">❌</span>
|
||
<span v-else>🔄</span>
|
||
</div>
|
||
</div>
|
||
</div>
|
||
|
||
<!-- 后端服务器 -->
|
||
<div class="servers-grid">
|
||
<div
|
||
v-for="(server, index) in servers"
|
||
:key="index"
|
||
class="server-card"
|
||
:class="{
|
||
healthy: server.status === 'healthy',
|
||
unhealthy: server.status === 'unhealthy',
|
||
checking: server.status === 'checking'
|
||
}"
|
||
>
|
||
<div class="server-header">
|
||
<div class="server-icon">
|
||
🖥️
|
||
</div>
|
||
<div class="server-info">
|
||
<div class="server-name">
|
||
Server {{ index + 1 }}
|
||
</div>
|
||
<div class="server-ip">
|
||
{{ server.ip }}
|
||
</div>
|
||
</div>
|
||
<div
|
||
class="status-badge"
|
||
:class="server.status"
|
||
>
|
||
{{ server.status === 'healthy' ? '健康' : server.status === 'unhealthy' ? '故障' : '检查中' }}
|
||
</div>
|
||
</div>
|
||
|
||
<div class="server-metrics">
|
||
<div class="metric">
|
||
<div class="metric-label">
|
||
响应时间
|
||
</div>
|
||
<div
|
||
class="metric-value"
|
||
:class="{ warning: server.responseTime > 100 }"
|
||
>
|
||
{{ server.responseTime }}ms
|
||
</div>
|
||
</div>
|
||
<div class="metric">
|
||
<div class="metric-label">
|
||
失败率
|
||
</div>
|
||
<div
|
||
class="metric-value"
|
||
:class="{ danger: server.errorRate > 5 }"
|
||
>
|
||
{{ server.errorRate }}%
|
||
</div>
|
||
</div>
|
||
<div class="metric">
|
||
<div class="metric-label">
|
||
连续成功
|
||
</div>
|
||
<div class="metric-value">
|
||
{{ server.consecutiveSuccess }}/3
|
||
</div>
|
||
</div>
|
||
</div>
|
||
</div>
|
||
</div>
|
||
</div>
|
||
|
||
<!-- 检查机制详情 -->
|
||
<div class="mechanism-details">
|
||
<div class="detail-card">
|
||
<div class="card-header">
|
||
<span class="card-icon">{{ currentModeData.icon }}</span>
|
||
<span class="card-title">{{ currentModeData.name }}</span>
|
||
</div>
|
||
<div class="card-body">
|
||
<p class="description">
|
||
{{ currentModeData.description }}
|
||
</p>
|
||
|
||
<div class="config-section">
|
||
<div class="section-title">
|
||
关键配置参数
|
||
</div>
|
||
<div class="config-grid">
|
||
<div
|
||
v-for="param in currentModeData.params"
|
||
:key="param.name"
|
||
class="config-item"
|
||
>
|
||
<div class="config-name">
|
||
{{ param.name }}
|
||
</div>
|
||
<div class="config-value">
|
||
{{ param.value }}
|
||
</div>
|
||
<div class="config-desc">
|
||
{{ param.desc }}
|
||
</div>
|
||
</div>
|
||
</div>
|
||
</div>
|
||
|
||
<div class="pros-cons">
|
||
<div class="pros">
|
||
<div class="pros-cons-title">
|
||
✅ 优点
|
||
</div>
|
||
<ul>
|
||
<li
|
||
v-for="pro in currentModeData.pros"
|
||
:key="pro"
|
||
>
|
||
{{ pro }}
|
||
</li>
|
||
</ul>
|
||
</div>
|
||
<div class="cons">
|
||
<div class="pros-cons-title">
|
||
❌ 缺点
|
||
</div>
|
||
<ul>
|
||
<li
|
||
v-for="con in currentModeData.cons"
|
||
:key="con"
|
||
>
|
||
{{ con }}
|
||
</li>
|
||
</ul>
|
||
</div>
|
||
</div>
|
||
</div>
|
||
</div>
|
||
</div>
|
||
</div>
|
||
</template>
|
||
|
||
<script setup>
|
||
import { ref, computed, onMounted, onUnmounted } from 'vue'
|
||
|
||
const currentMode = ref('active')
|
||
|
||
const modes = [
|
||
{
|
||
key: 'active',
|
||
name: '主动健康检查',
|
||
icon: '🔍',
|
||
label: 'Probing'
|
||
},
|
||
{
|
||
key: 'passive',
|
||
name: '被动健康检查',
|
||
icon: '👁️',
|
||
label: 'Observing'
|
||
},
|
||
{
|
||
key: 'threshold',
|
||
name: '阈值判定',
|
||
icon: '📊',
|
||
label: 'Threshold'
|
||
}
|
||
]
|
||
|
||
const modeDetails = {
|
||
active: {
|
||
name: '主动健康检查',
|
||
icon: '🔍',
|
||
label: '定期主动探测',
|
||
description: '负载均衡器主动向后端服务器发送探测请求（如HTTP /health、TCP握手等），根据响应判断服务器健康状态。这是最常用的健康检查方式。',
|
||
params: [
|
||
{ name: '检查间隔', value: '5s', desc: '两次检查之间的时间间隔' },
|
||
{ name: '超时时间', value: '3s', desc: '等待响应的最大时间' },
|
||
{ name: '健康阈值', value: '2', desc: '判定为健康所需的连续成功次数' },
|
||
{ name: '不健康阈值', value: '3', desc: '判定为不健康所需的连续失败次数' }
|
||
],
|
||
pros: [
|
||
'检测结果准确可靠，能真实反映服务状态',
|
||
'可以精确配置检查参数和阈值',
|
||
'不依赖实际业务流量，无流量时也能检测'
|
||
],
|
||
cons: [
|
||
'产生额外的探测流量和系统开销',
|
||
'检查间隔期间发生的故障不能立即发现',
|
||
'需要后端服务提供健康检查端点'
|
||
]
|
||
},
|
||
passive: {
|
||
name: '被动健康检查',
|
||
icon: '👁️',
|
||
label: '观察实际流量',
|
||
description: '负载均衡器通过监控实际业务流量的响应情况来判断后端健康状态。不发送额外的探测请求，而是分析真实请求的响应时间、状态码等指标。',
|
||
params: [
|
||
{ name: '采样窗口', value: '60s', desc: '统计响应时间的时间窗口' },
|
||
{ name: '错误阈值', value: '10%', desc: '可接受的最大错误率' },
|
||
{ name: '延迟阈值', value: '500ms', desc: '可接受的最大平均延迟' },
|
||
{ name: '最小样本', value: '100', desc: '判定所需的最小请求数' }
|
||
],
|
||
pros: [
|
||
'不产生额外的探测流量',
|
||
'能反映真实业务场景下的服务状态',
|
||
'对无法提供健康检查端点的服务也有效'
|
||
],
|
||
cons: [
|
||
'需要足够的流量样本才能判定',
|
||
'低流量时可能无法及时发现问题',
|
||
'检测结果受业务流量特征影响较大'
|
||
]
|
||
},
|
||
threshold: {
|
||
name: '阈值判定机制',
|
||
icon: '📊',
|
||
label: '多维度阈值',
|
||
description: '结合多种指标（响应时间、错误率、连接数、CPU/内存使用率等）设置阈值，进行综合判定。支持动态阈值调整，适应不同负载场景。',
|
||
params: [
|
||
{ name: '响应时间P99', value: '200ms', desc: '99%请求的响应时间阈值' },
|
||
{ name: '错误率', value: '1%', desc: '可接受的最大错误比例' },
|
||
{ name: '连接数', value: '1000', desc: '最大并发连接数限制' },
|
||
{ name: 'CPU使用率', value: '80%', desc: '服务器CPU使用率阈值' }
|
||
],
|
||
pros: [
|
||
'多维度综合判定，结果更全面准确',
|
||
'可根据业务特点灵活配置阈值',
|
||
'支持动态阈值调整，适应负载变化'
|
||
],
|
||
cons: [
|
||
'配置复杂，需要深入理解各项指标',
|
||
'阈值设置不当可能导致误判',
|
||
'需要持续调优以达到最佳效果'
|
||
]
|
||
}
|
||
}
|
||
|
||
const currentModeData = computed(() => modeDetails[currentMode.value])
|
||
|
||
// 模拟服务器数据
|
||
const servers = ref([
|
||
{ ip: '10.0.1.10', status: 'healthy', responseTime: 25, errorRate: 0.1, consecutiveSuccess: 5, showPacket: false, packetType: '' },
|
||
{ ip: '10.0.1.11', status: 'healthy', responseTime: 30, errorRate: 0.2, consecutiveSuccess: 4, showPacket: false, packetType: '' },
|
||
{ ip: '10.0.1.12', status: 'unhealthy', responseTime: 3500, errorRate: 15, consecutiveSuccess: 0, showPacket: false, packetType: '' }
|
||
])
|
||
|
||
// 模拟健康检查动画
|
||
let healthCheckInterval
|
||
let packetInterval
|
||
|
||
const simulateHealthCheck = () => {
|
||
// 随机选择一个服务器发送健康检查包
|
||
const serverIndex = Math.floor(Math.random() * servers.value.length)
|
||
const server = servers.value[serverIndex]
|
||
|
||
server.showPacket = true
|
||
server.packetType = currentMode.value === 'active' ? 'GET /health' : currentMode.value === 'passive' ? 'Observing' : 'Metrics'
|
||
|
||
setTimeout(() => {
|
||
server.showPacket = false
|
||
|
||
// 模拟检查结果
|
||
if (server.status === 'healthy') {
|
||
server.consecutiveSuccess = Math.min(server.consecutiveSuccess + 1, 5)
|
||
server.responseTime = Math.floor(Math.random() * 50) + 20
|
||
} else if (server.status === 'unhealthy') {
|
||
server.consecutiveSuccess = 0
|
||
server.responseTime = 3000 + Math.floor(Math.random() * 2000)
|
||
}
|
||
}, 500)
|
||
}
|
||
|
||
onMounted(() => {
|
||
// 启动健康检查模拟
|
||
healthCheckInterval = setInterval(() => {
|
||
simulateHealthCheck()
|
||
}, 2000)
|
||
|
||
// 轮播显示活跃服务器
|
||
packetInterval = setInterval(() => {
|
||
const healthyServers = servers.value.filter(s => s.status === 'healthy')
|
||
if (healthyServers.length > 0) {
|
||
const randomServer = healthyServers[Math.floor(Math.random() * healthyServers.length)]
|
||
activeServer.value = servers.value.indexOf(randomServer)
|
||
}
|
||
}, 1500)
|
||
})
|
||
|
||
onUnmounted(() => {
|
||
clearInterval(healthCheckInterval)
|
||
clearInterval(packetInterval)
|
||
})
|
||
|
||
const activeServer = ref(0)
|
||
</script>
|
||
|
||
<style scoped>
|
||
.health-check-demo {
|
||
border: 1px solid var(--vp-c-divider);
|
||
background: var(--vp-c-bg-soft);
|
||
border-radius: 12px;
|
||
padding: 1.5rem;
|
||
margin: 1.5rem 0;
|
||
font-family: var(--vp-font-family-base);
|
||
}
|
||
|
||
.header {
|
||
margin-bottom: 1.5rem;
|
||
}
|
||
|
||
.title {
|
||
font-weight: 700;
|
||
font-size: 1.1rem;
|
||
margin-bottom: 0.25rem;
|
||
}
|
||
|
||
.subtitle {
|
||
color: var(--vp-c-text-2);
|
||
font-size: 0.9rem;
|
||
}
|
||
|
||
/* Mode Selector */
|
||
.mode-selector {
|
||
display: grid;
|
||
grid-template-columns: repeat(3, 1fr);
|
||
gap: 0.5rem;
|
||
margin-bottom: 1.5rem;
|
||
}
|
||
|
||
@media (max-width: 768px) {
|
||
.mode-selector {
|
||
grid-template-columns: 1fr;
|
||
}
|
||
}
|
||
|
||
.mode-btn {
|
||
display: flex;
|
||
align-items: center;
|
||
justify-content: center;
|
||
gap: 0.5rem;
|
||
padding: 0.75rem 1rem;
|
||
background: var(--vp-c-bg);
|
||
border: 2px solid var(--vp-c-divider);
|
||
border-radius: 6px;
|
||
cursor: pointer;
|
||
transition: all 0.2s;
|
||
font-size: 0.9rem;
|
||
}
|
||
|
||
.mode-btn:hover {
|
||
border-color: var(--vp-c-brand-light);
|
||
}
|
||
|
||
.mode-btn.active {
|
||
border-color: var(--vp-c-brand);
|
||
background: var(--vp-c-brand-soft);
|
||
}
|
||
|
||
.mode-icon {
|
||
font-size: 1.2rem;
|
||
}
|
||
|
||
.mode-name {
|
||
font-weight: 600;
|
||
}
|
||
|
||
/* Visualization Area */
|
||
.visualization-area {
|
||
display: flex;
|
||
flex-direction: column;
|
||
align-items: center;
|
||
gap: 1rem;
|
||
margin-bottom: 1.5rem;
|
||
padding: 1.5rem;
|
||
background: var(--vp-c-bg);
|
||
border: 1px solid var(--vp-c-divider);
|
||
border-radius: 12px;
|
||
}
|
||
|
||
.lb-node {
|
||
display: flex;
|
||
flex-direction: column;
|
||
align-items: center;
|
||
gap: 0.25rem;
|
||
background: linear-gradient(135deg, #3b82f6, #8b5cf6);
|
||
color: white;
|
||
padding: 1rem 2rem;
|
||
border-radius: 12px;
|
||
box-shadow: 0 4px 12px rgba(59, 130, 246, 0.3);
|
||
}
|
||
|
||
.lb-icon {
|
||
font-size: 1.5rem;
|
||
}
|
||
|
||
.lb-label {
|
||
font-weight: 600;
|
||
font-size: 0.9rem;
|
||
}
|
||
|
||
.lb-status {
|
||
font-size: 0.75rem;
|
||
opacity: 0.9;
|
||
background: rgba(255, 255, 255, 0.2);
|
||
padding: 2px 8px;
|
||
border-radius: 4px;
|
||
}
|
||
|
||
/* Connections Layer */
|
||
.connections-layer {
|
||
display: flex;
|
||
gap: 2rem;
|
||
}
|
||
|
||
.connection-line {
|
||
display: flex;
|
||
flex-direction: column;
|
||
align-items: center;
|
||
gap: 0.5rem;
|
||
position: relative;
|
||
padding: 0.5rem;
|
||
border-radius: 6px;
|
||
transition: all 0.3s;
|
||
min-width: 80px;
|
||
}
|
||
|
||
.connection-line.healthy {
|
||
background: rgba(34, 197, 94, 0.1);
|
||
}
|
||
|
||
.connection-line.unhealthy {
|
||
background: rgba(239, 68, 68, 0.1);
|
||
}
|
||
|
||
.connection-line.checking {
|
||
background: rgba(245, 158, 11, 0.1);
|
||
}
|
||
|
||
.health-packet {
|
||
position: absolute;
|
||
top: -20px;
|
||
font-size: 0.7rem;
|
||
background: var(--vp-c-brand);
|
||
color: white;
|
||
padding: 2px 6px;
|
||
border-radius: 4px;
|
||
animation: packetMove 1s ease-in-out;
|
||
}
|
||
|
||
@keyframes packetMove {
|
||
0% { transform: translateY(0); opacity: 1; }
|
||
100% { transform: translateY(30px); opacity: 0; }
|
||
}
|
||
|
||
.health-indicator {
|
||
font-size: 1.25rem;
|
||
}
|
||
|
||
/* Servers Grid */
|
||
.servers-grid {
|
||
display: grid;
|
||
grid-template-columns: repeat(3, 1fr);
|
||
gap: 1rem;
|
||
width: 100%;
|
||
max-width: 800px;
|
||
}
|
||
|
||
@media (max-width: 768px) {
|
||
.servers-grid {
|
||
grid-template-columns: 1fr;
|
||
}
|
||
}
|
||
|
||
.server-card {
|
||
background: var(--vp-c-bg-soft);
|
||
border: 2px solid var(--vp-c-divider);
|
||
border-radius: 10px;
|
||
padding: 0.75rem;
|
||
transition: all 0.3s;
|
||
}
|
||
|
||
.server-card.healthy {
|
||
border-color: #22c55e;
|
||
background: rgba(34, 197, 94, 0.05);
|
||
}
|
||
|
||
.server-card.unhealthy {
|
||
border-color: #ef4444;
|
||
background: rgba(239, 68, 68, 0.05);
|
||
}
|
||
|
||
.server-card.checking {
|
||
border-color: #f59e0b;
|
||
background: rgba(245, 158, 11, 0.05);
|
||
}
|
||
|
||
.server-header {
|
||
display: flex;
|
||
align-items: center;
|
||
gap: 0.5rem;
|
||
margin-bottom: 0.75rem;
|
||
}
|
||
|
||
.server-icon {
|
||
font-size: 1.25rem;
|
||
}
|
||
|
||
.server-info {
|
||
flex: 1;
|
||
}
|
||
|
||
.server-name {
|
||
font-weight: 600;
|
||
font-size: 0.85rem;
|
||
color: var(--vp-c-text-1);
|
||
}
|
||
|
||
.server-ip {
|
||
font-size: 0.7rem;
|
||
color: var(--vp-c-text-2);
|
||
font-family: monospace;
|
||
}
|
||
|
||
.status-badge {
|
||
font-size: 0.7rem;
|
||
padding: 2px 6px;
|
||
border-radius: 4px;
|
||
font-weight: 600;
|
||
}
|
||
|
||
.status-badge.healthy {
|
||
background: #dcfce7;
|
||
color: #16a34a;
|
||
}
|
||
|
||
.status-badge.unhealthy {
|
||
background: #fee2e2;
|
||
color: #dc2626;
|
||
}
|
||
|
||
.status-badge.checking {
|
||
background: #fef3c7;
|
||
color: #d97706;
|
||
}
|
||
|
||
.server-metrics {
|
||
display: grid;
|
||
grid-template-columns: repeat(3, 1fr);
|
||
gap: 0.5rem;
|
||
}
|
||
|
||
.metric {
|
||
text-align: center;
|
||
}
|
||
|
||
.metric-label {
|
||
font-size: 0.65rem;
|
||
color: var(--vp-c-text-2);
|
||
margin-bottom: 2px;
|
||
}
|
||
|
||
.metric-value {
|
||
font-size: 0.8rem;
|
||
font-weight: 600;
|
||
color: var(--vp-c-text-1);
|
||
}
|
||
|
||
.metric-value.warning {
|
||
color: #f59e0b;
|
||
}
|
||
|
||
.metric-value.danger {
|
||
color: #ef4444;
|
||
}
|
||
|
||
/* Mechanism Details */
|
||
.mechanism-details {
|
||
background: var(--vp-c-bg);
|
||
border: 1px solid var(--vp-c-divider);
|
||
border-radius: 12px;
|
||
overflow: hidden;
|
||
}
|
||
|
||
.detail-card {
|
||
padding: 0.75rem;
|
||
}
|
||
|
||
.card-header {
|
||
display: flex;
|
||
align-items: center;
|
||
gap: 0.5rem;
|
||
margin-bottom: 1rem;
|
||
padding-bottom: 0.75rem;
|
||
border-bottom: 1px solid var(--vp-c-divider);
|
||
}
|
||
|
||
.card-icon {
|
||
font-size: 1.25rem;
|
||
}
|
||
|
||
.card-title {
|
||
font-weight: 600;
|
||
font-size: 1rem;
|
||
}
|
||
|
||
.description {
|
||
color: var(--vp-c-text-2);
|
||
line-height: 1.6;
|
||
margin-bottom: 1rem;
|
||
}
|
||
|
||
.config-section {
|
||
margin-bottom: 1rem;
|
||
}
|
||
|
||
.section-title {
|
||
font-weight: 600;
|
||
font-size: 0.9rem;
|
||
margin-bottom: 0.75rem;
|
||
color: var(--vp-c-text-1);
|
||
}
|
||
|
||
.config-grid {
|
||
display: grid;
|
||
grid-template-columns: repeat(2, 1fr);
|
||
gap: 0.75rem;
|
||
}
|
||
|
||
@media (max-width: 768px) {
|
||
.config-grid {
|
||
grid-template-columns: 1fr;
|
||
}
|
||
}
|
||
|
||
.config-item {
|
||
background: var(--vp-c-bg-soft);
|
||
border: 1px solid var(--vp-c-divider);
|
||
border-radius: 6px;
|
||
padding: 0.75rem;
|
||
}
|
||
|
||
.config-name {
|
||
font-weight: 600;
|
||
font-size: 0.8rem;
|
||
color: var(--vp-c-text-1);
|
||
margin-bottom: 0.25rem;
|
||
}
|
||
|
||
.config-value {
|
||
font-family: monospace;
|
||
font-size: 0.85rem;
|
||
color: var(--vp-c-brand);
|
||
background: var(--vp-c-bg);
|
||
padding: 2px 6px;
|
||
border-radius: 4px;
|
||
display: inline-block;
|
||
margin-bottom: 0.25rem;
|
||
}
|
||
|
||
.config-desc {
|
||
font-size: 0.75rem;
|
||
color: var(--vp-c-text-2);
|
||
}
|
||
|
||
.pros-cons {
|
||
display: grid;
|
||
grid-template-columns: 1fr 1fr;
|
||
gap: 1rem;
|
||
}
|
||
|
||
@media (max-width: 768px) {
|
||
.pros-cons {
|
||
grid-template-columns: 1fr;
|
||
}
|
||
}
|
||
|
||
.pros-cons-title {
|
||
font-weight: 600;
|
||
font-size: 0.85rem;
|
||
margin-bottom: 0.5rem;
|
||
}
|
||
|
||
.pros ul,
|
||
.cons ul {
|
||
margin: 0;
|
||
padding-left: 1.2rem;
|
||
font-size: 0.85rem;
|
||
color: var(--vp-c-text-2);
|
||
line-height: 1.6;
|
||
}
|
||
|
||
.pros li,
|
||
.cons li {
|
||
margin-bottom: 0.25rem;
|
||
}
|
||
</style>
|