微服务无法获取nacos配置问题排查

错误日志

```bash
12:45:50.148 [main] INFO  main c.a.n.c.c.i.LocalConfigInfoProcessor - [<clinit>,195] - LOCAL_SNAPSHOT_PATH:/root/nacos/config
12:45:50.252 [main] INFO  main c.a.n.c.c.i.Limiter - [<clinit>,53] - limitTime:5.0
12:45:50.384 [main] WARN  main c.a.c.n.c.NacosPropertySourceBuilder - [loadNacosData,87] - Ignore the empty nacos configuration and get it based on dataId[Application.yaml] & group[prod-plus]
12:45:50.413 [main] WARN  main c.a.c.n.c.NacosPropertySourceBuilder - [loadNacosData,87] - Ignore the empty nacos configuration and get it based on dataId[ServiceSystem] & group[prod-plus]
12:45:50.440 [main] WARN  main c.a.c.n.c.NacosPropertySourceBuilder - [loadNacosData,87] - Ignore the empty nacos configuration and get it based on dataId[ServiceSystem.yaml] & group[prod-plus]
12:45:50.469 [main] WARN  main c.a.c.n.c.NacosPropertySourceBuilder - [loadNacosData,87] - Ignore the empty nacos configuration and get it based on dataId[ServiceSystem-prod-plus.yaml] & group[prod-plus]
12:45:50.506 [main] INFO  main c.aiot5.Application - [logStartupProfileInfo,655] - The following profiles are active: prod-plus

主要可能原因分析

spring boot 配置错误

• nacos 配置地址配置错误
• nacos 命名空间配置错误、配置文件名或类型错误
• nacos 中不存在配置文件

但是通过日志发现是nacos获取到的配置文件为空

登录Naocs查看是否存在配置文件

看到nacos中配置文件都是存在的并且配置文件名也没有错

tcpdump抓包nacos域名

root@k8s-master:~/project/zsa/repository/backend# tcpdump -i eth0 host abc.abc.com -nn
tcpdump: verbose output suppressed, use -v[v]... for full protocol decode
listening on eth0, link-type EN10MB (Ethernet), snapshot length 262144 bytes
13:31:56.174798 IP 172.18.28.207.43893 > xxx.xxx.xxx.xxx.80: Flags [S], seq 678554203, win 64800, options [mss 1440,sackOK,TS val 4116337012 ecr 0,nop,wscale 7], length 0
13:31:56.200829 IP xxx.xxx.xxx.xxx.80 > 172.18.28.207.43893: Flags [S.], seq 3589867409, ack 678554204, win 28960, options [mss 1460,sackOK,TS val 3509487916 ecr 4116337012,nop,wscale 7], length 0
13:31:56.201047 IP 172.18.28.207.43893 > xxx.xxx.xxx.xxx.80: Flags [.], ack 1, win 507, options [nop,nop,TS val 4116337038 ecr 3509487916], length 0
13:31:56.206923 IP 172.18.28.207.43893 > xxx.xxx.xxx.xxx.80: Flags [P.], seq 1:501, ack 1, win 507, options [nop,nop,TS val 4116337044 ecr 3509487916], length 500: HTTP: GET /abc/v1/cs/configs?dataId=Application.yaml&group=prod-plus&tenant=zsa-xma HTTP/1.1
13:31:56.233372 IP xxx.xxx.xxx.xxx.80 > 172.18.28.207.43893: Flags [.], ack 501, win 235, options [nop,nop,TS val 3509487948 ecr 4116337044], length 0
13:31:56.235330 IP xxx.xxx.xxx.xxx.80 > 172.18.28.207.43893: Flags [P.], seq 1:315, ack 501, win 235, options [nop,nop,TS val 3509487950 ecr 4116337044], length 314: HTTP: HTTP/1.1 404 
13:31:56.235420 IP 172.18.28.207.43893 > xxx.xxx.xxx.xxx.80: Flags [.], ack 315, win 505, options [nop,nop,TS val 4116337073 ecr 3509487950], length 0
13:31:56.267437 IP 172.18.28.207.43893 > xxx.xxx.xxx.xxx.80: Flags [P.], seq 501:1009, ack 315, win 505, options [nop,nop,TS val 4116337105 ecr 3509487950], length 508: HTTP: GET /abc/v1/cs/configs?dataId=BizFireControlRoomSystem&group=prod-plus&tenant=zsa-xma HTTP/1.1
13:31:56.295859 IP xxx.xxx.xxx.xxx.80 > 172.18.28.207.43893: Flags [P.], seq 315:629, ack 1009, win 243, options [nop,nop,TS val 3509488011 ecr 4116337105], length 314: HTTP: HTTP/1.1 404

尝试手动CURL配置文件路径

root@k8s-master:~/project/zsa/repository/backend# curl "http://abc.abc.com:80/abc/v1/cs/configs?dataId=ServiceSystem.yaml&group=prod-plus&tenant=zsa-xma"
config data not exist
root@k8s-master:~/project/zsa/repository/backend#

root@k8s-master:~/project/zsa/repository/backend# curl "http://abc.abc.com:80/abc/v1/cs/configs?dataId=ServiceSystem.yaml&group=prod-plus&tenant=xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx"
# 所有预先配置，放在这里
server:
  #文件上传的总吞吐量
  tomcat:
    max-swallow-size: 100MB #重要的一行，修改tomcat的吞吐量
........

更改微服务配置

spring:
  profiles:
    active: ${SPRING_PROFILES_ACTIVE:dev}
  cloud:
    config:
      enabled: false
    nacos:
      discovery:
        server-addr: "abc.abc.com:80"
        # 使用namespace ID,不要使用 zsa-xma
        namespace: "xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx"
        group: "${spring.profiles.active}"
      config:
        server-addr: "abc.abc.com:80"
        namespace: "xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx"
        prefix: "SpringGateway"
        file-extension: "yaml"
        group: "${spring.profiles.active}"
        shared-configs:
          - data-id: "Application.yaml"
            refresh: true
            group: "${spring.profiles.active}"

root@k8s-master:~# kubectl logs zsa-service-cfd8595dc-hz8v9 
18:37:01.461 [background-preinit] INFO  background-preinit o.h.v.i.util.Version - [<clinit>,21] - HV000001: Hibernate Validator 6.1.5.Final
 ________ _________  ___       __   ___       ________
|\   ____\\___   ___\\  \     |\  \|\  \     |\   ____\
\ \  \___\|___ \  \_\ \  \    \ \  \ \  \    \ \  \___|_
 \ \  \       \ \  \ \ \  \  __\ \  \ \  \    \ \_____  \
  \ \  \____   \ \  \ \ \  \|\__\_\  \ \  \____\|____|\  \
   \ \_______\  \ \__\ \ \____________\ \_______\____\_\  \
    \|_______|   \|__|  \|____________|\|_______|\_________\
                                                \|_________|

18:37:05.117 [main] INFO  main c.a.n.c.c.i.LocalConfigInfoProcessor - [<clinit>,195] - LOCAL_SNAPSHOT_PATH:/root/nacos/config
18:37:05.240 [main] INFO  main c.a.n.c.c.i.Limiter - [<clinit>,53] - limitTime:5.0
18:37:06.407 [main] INFO  main c.a.n.c.c.u.JVMUtil - [<clinit>,47] - isMultiInstance:false
18:37:06.469 [main] WARN  main c.a.c.n.c.NacosPropertySourceBuilder - [loadNacosData,87] - Ignore the empty nacos configuration and get it based on dataId[ServiceSystem] & group[prod-plus]
18:37:06.831 [main] WARN  main c.a.c.n.c.NacosPropertySourceBuilder - [loadNacosData,87] - Ignore the empty nacos configuration and get it based on dataId[ServiceSystem-prod-plus.yaml] & group[prod-plus]
18:37:07,231 |-WARN in net.logstash.logback.appender.LogstashTcpSocketAppender[logstash] - Log destination 172.18.28.207:4560: Waiting 29995ms before attempting reconnection.
18:37:07.245 [main] INFO  main c.aiot5.Application - [logStartupProfileInfo,655] - The following profiles are active: prod-plus
18:37:13.416 [main] WARN  main o.s.b.a.e.EndpointId - [logWarning,155] - Endpoint ID 'bus-env' contains invalid characters, please migrate to a valid format.
18:37:14.369 [main] WARN  main o.s.b.a.e.EndpointId - [logWarning,155] - Endpoint ID 'bus-refresh' contains invalid characters, please migrate to a valid format.
18:37:14.483 [main] WARN  main o.s.b.a.e.EndpointId - [logWarning,155] - Endpoint ID 'service-registry' contains invalid characters, please migrate to a valid format.
18:37:14.835 [main] WARN  main t.m.s.m.ClassPathMapperScanner - [doScan,146] - No MyBatis mapper was found in '[com.aiot5.equipmanagementsystem.mapper.dao_taosdb]' package. Please check your configuration.
18:37:14.883 [main] WARN  main o.m.s.m.ClassPathMapperScanner - [warn,44] - No MyBatis mapper was found in '[com.aiot5.tool.core.Mapper]' package. Please check your configuration.
18:37:18.755 [main] INFO  main o.a.c.h.Http11NioProtocol - [log,173] - Initializing ProtocolHandler ["http-nio-8080"]
18:37:18.756 [main] INFO  main o.a.c.c.StandardService - [log,173] - Starting service [Tomcat]
18:37:18.757 [main] INFO  main o.a.c.c.StandardEngine - [log,173] - Starting Servlet engine: [Apache Tomcat/9.0.37]
18:37:18.889 [main] INFO  main o.a.c.c.C.[.[.[/] - [log,173] - Initializing Spring embedded WebApplicationContext