Alanxtl opened a new issue, #681:
URL: https://github.com/apache/dubbo-go-pixiu/issues/681
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**What happened**:
When trying to hotreload config nil pointer panic occures
**How to reproduce it (as minimally and precisely as possible)**:
Run nacos-farconf sample, and try to update the config stored in nacos,
pixiu will try to hotreload the config file. At this time, nil pointer panic
occures.
**Anything else we need to know?**:
log:
```
2025-05-28T11:42:44.952+0800 INFO config/config_load.go:60
[dubbopixiu go] load
path:../../dubbo-go-pixiu-samples/dubbogo/simple/nacos_farconf//pixiu/conf.yaml
2025-05-28T11:42:44.952+0800 INFO config/config_load.go:86 load
config in YAML format from :
/mnt/c/Users/Alan.lxt-redmi/Desktop/repoistories/dubbo-go-pixiu-samples/dubbogo/simple/nacos_farconf/pixiu/conf.yaml
2025-05-28T11:42:45.038+0800 INFO config/config_load.go:137 http
config:map[idle_timeout:4s read_timeout:5s write_timeout:6s] true
2025-05-28T11:42:45.038+0800 INFO cmd/gateway.go:208 GOMAXPROCS set
to 18
2025-05-28T11:42:45.038+0800 INFO server/pixiu_start.go:127
[dubbopixiu go] start by config : &{StaticResources:{Listeners:[0xc000799d90]
Clusters:[] Adapters:[] ShutdownConfig:0xc000797aa0 PprofConf:{Enable:false
Address:{SocketAddress:{Address:0.0.0.0 Port:8881 ResolverName: Domains:[]
CertsDir:} Name:}}} DynamicResources:<nil> Metric:{Enable:false
PrometheusPort:0} Node:<nil> Trace:<nil> Wasm:<nil> Config:0xc0004fb5c0
Nacos:0xc00064f2c0 Log:<nil>}
2025-05-28 11:42:45 INFO config/root_config.go:138 [Config Center]
Config center doesn't start
2025/05/28 11:42:45 Connected to 127.0.0.1:2181
2025-05-28T11:42:45.042+0800 INFO proxy/descriptor_source.go:51
[dubbo-go-pixiu] could not load protoset files: no protoset files provided
2025-05-28T11:42:45.042+0800 INFO tracing/driver.go:76
[dubbo-go-pixiu] no trace configuration in conf.yaml
2025-05-28T11:42:45.042+0800 INFO http/http_listener.go:157
[dubbo-go-server] httpListener start at : 0.0.0.0:8881
2025/05/28 11:42:45 Authenticated: id=72057594730840067, timeout=4000
2025/05/28 11:42:45 Re-submitting `0` credentials after reconnect
panic: runtime error: invalid memory address or nil pointer dereference
[signal SIGSEGV: segmentation violation code=0x1 addr=0x0 pc=0x1172d34]
goroutine 89 [running]:
github.com/apache/dubbo-go-pixiu/pkg/hotreload.(*LoggerReloader).CheckUpdate(0x3749f60,
0xc00040dc00?, 0x0?)
/mnt/c/Users/Alan.lxt-redmi/Desktop/repoistories/review/dubbo-go-pixiu/pkg/hotreload/logger.go:42
+0x74
github.com/apache/dubbo-go-pixiu/pkg/hotreload.(*Coordinator).hotReload(0x36f3f20,
0xc00040dc00)
/mnt/c/Users/Alan.lxt-redmi/Desktop/repoistories/review/dubbo-go-pixiu/pkg/hotreload/hotreload.go:85
+0x97
github.com/apache/dubbo-go-pixiu/pkg/hotreload.(*Coordinator).HotReload(0x36f3f20)
/mnt/c/Users/Alan.lxt-redmi/Desktop/repoistories/review/dubbo-go-pixiu/pkg/hotreload/hotreload.go:75
+0x52
created by github.com/apache/dubbo-go-pixiu/pkg/hotreload.StartHotReload in
goroutine 1
/mnt/c/Users/Alan.lxt-redmi/Desktop/repoistories/review/dubbo-go-pixiu/pkg/hotreload/hotreload.go:62
+0x7f
exit status 2
```
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