XnLemon commented on code in PR #3395:
URL: https://github.com/apache/dubbo-go/pull/3395#discussion_r3400053131
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metadata/client.go:
##########
@@ -45,18 +45,25 @@ const defaultTimeout = "5s" // s
func GetMetadataFromMetadataReport(revision string, instance
registry.ServiceInstance, registryId string) (*info.MetadataInfo, error) {
report := GetMetadataReportByRegistry(registryId)
if report == nil {
- return nil, perrors.Errorf("no metadata report instance found
for registryId=%s, please check metadata-report configuration", registryId)
+ return nil, perrors.Errorf("[Metadata-Report] no metadata
report instance found for registryId=%s, please check metadata-report
configuration", registryId)
}
- return report.GetAppMetadata(instance.GetServiceName(), revision)
+ meta, err := report.GetAppMetadata(instance.GetServiceName(), revision)
+ if err != nil {
+ return nil, perrors.Wrapf(err, "[Metadata-Report] failed to get
app metadata app=%s revision=%s", instance.GetServiceName(), revision)
+ }
+ return meta, nil
}
func GetMetadataFromRpc(revision string, instance registry.ServiceInstance)
(*info.MetadataInfo, error) {
url := buildStandardMetadataServiceURL(instance)
+ if url == nil {
+ return nil, perrors.New("[Metadata-URL] metadata service URL
params missing: protocol is empty")
+ }
url.SetParam(constant.TimeoutKey, defaultTimeout)
p := extension.GetProtocol(url.Protocol)
invoker := p.Refer(url)
if invoker == nil { // can't connect instance
- return nil, perrors.New("can not connect to remote metadata
service host: " + url.Ip)
+ return nil, perrors.New("[Metadata-RPC] can not connect to
remote metadata service host: " + url.Ip)
Review Comment:
好的
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