王绍宏
8f1a8b6283
- 每分钟保存 WAL 全局状态和分 IP 接收统计，历史保留 7 天 - 记录接收、WAL 落盘、Kafka ACK、过滤、背压及丢弃数量 - 增加 wal_max_pending_bytes 和 wal_admission_unavailable 指标 - 增加 TCP pending 当前值及进程内峰值统计 - 网络异常后同一 IP 恢复接收时打印恢复日志 - 提供当前状态及按日期查询诊断历史的接口 - 连接关闭时清理 TCP pending 计数并停止无效重试 - 增加相关单元测试和现场排查文档
46 lines
2.0 KiB
Java
46 lines
2.0 KiB
Java
package com.netty;
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import com.haobang.dispatch.DeviceContextResolver;
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import com.haobang.diagnostics.SyslogIpMetricsRegistry;
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import com.haobang.wal.SyslogWalService;
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import io.netty.channel.ChannelInitializer;
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import io.netty.channel.ChannelPipeline;
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import io.netty.channel.socket.DatagramChannel;
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import io.netty.handler.codec.string.StringDecoder;
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import io.netty.handler.codec.string.StringEncoder;
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import java.nio.charset.Charset;
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/**
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* UDP 通道初始化器
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*/
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public class SyslogUdpChannelInitializer extends ChannelInitializer<DatagramChannel> {
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private final Charset syslogCharset;
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private final SyslogWalService walService;
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private final DeviceContextResolver deviceResolver;
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private final boolean dropInvalidBeforeWal;
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private final SyslogIpMetricsRegistry ipMetrics;
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SyslogUdpChannelInitializer(Charset syslogCharset, SyslogWalService walService,
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DeviceContextResolver deviceResolver, boolean dropInvalidBeforeWal,
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SyslogIpMetricsRegistry ipMetrics) {
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this.syslogCharset = java.util.Objects.requireNonNull(syslogCharset, "syslogCharset");
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this.walService = java.util.Objects.requireNonNull(walService, "walService");
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this.deviceResolver = java.util.Objects.requireNonNull(deviceResolver, "deviceResolver");
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this.dropInvalidBeforeWal = dropInvalidBeforeWal;
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this.ipMetrics = java.util.Objects.requireNonNull(ipMetrics, "ipMetrics");
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}
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@Override
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protected void initChannel(DatagramChannel ch) throws Exception {
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ChannelPipeline pipeline = ch.pipeline();
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// 添加字符串解码器和编码器（使用可配置的字符集）
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pipeline.addLast("decoder", new StringDecoder(syslogCharset));
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pipeline.addLast("encoder", new StringEncoder(syslogCharset));
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// 添加业务处理器
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pipeline.addLast("handler", new SyslogMessageHandler(
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syslogCharset, walService, deviceResolver, dropInvalidBeforeWal, ipMetrics));
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}
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}
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