kezhenxu94 commented on a change in pull request #8193:
URL: https://github.com/apache/skywalking/pull/8193#discussion_r757828486



##########
File path: 
oap-server/server-receiver-plugin/envoy-metrics-receiver-plugin/src/main/java/org/apache/skywalking/oap/server/receiver/envoy/AccessLogServiceGRPCHandler.java
##########
@@ -105,7 +110,7 @@ public AccessLogServiceGRPCHandler(ModuleManager manager,
             public void onNext(StreamAccessLogsMessage message) {
                 HistogramMetrics.Timer timer = histogram.createTimer();
                 try {
-                    if (isFirst) {
+                    if (isFirst || (alwaysAnalyzeIdentity && 
message.getIdentifier() != null)) {

Review comment:
       > If you mean flatbuffer parsing, then this is really having no 
different than before.
   
   I never mean flatbuffer parsing. I meant this part 
   
   ```java
   for (ALSHTTPAnalysis analysis : envoyHTTPAnalysisList) {
                    role = analysis.identify(identifier, role);
   }
   ```
   
   > I think your gap is that, you are not considering we merged the stream, 
currently, one stream is representing the previous multiple streaming, then 
logically, all those identifiers are pasred too, just through different 
streamings.
   
   I’m rather aware of that you merged the streams, and because you merge the 
streams from different Envoy nodes the OAP needs to identify the node in every 
message
   




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