[GitHub] [pinot] vvivekiyer commented on a diff in pull request #8907: Log Request header for Broker

[GitBox <gi...@apache.org>]

vvivekiyer commented on code in PR #8907:
URL: https://github.com/apache/pinot/pull/8907#discussion_r918430094


##########
pinot-broker/src/main/java/org/apache/pinot/broker/requesthandler/BaseBrokerRequestHandler.java:
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@@ -658,9 +661,32 @@ private boolean isFilterAlwaysTrue(PinotQuery pinotQuery) {
   }
 
   private void logBrokerResponse(long requestId, String query, RequestContext requestContext, String tableName,
-      int numUnavailableSegments, ServerStats serverStats, BrokerResponseNative brokerResponse, long totalTimeMs) {
+      int numUnavailableSegments, ServerStats serverStats, BrokerResponseNative brokerResponse, long totalTimeMs,
+      @Nullable RequesterIdentity requesterIdentity) {
     LOGGER.debug("Broker Response: {}", brokerResponse);
 
+    boolean enableClientIpLogging = _config.getProperty(Broker.CONFIG_OF_BROKER_REQUEST_CLIENT_IP_LOGGING,
+        Broker.DEFAULT_BROKER_REQUEST_CLIENT_IP_LOGGING);
+    String clientIp = "";
+    // If reverse proxy is used X-Forwarded-For will be populated
+    // If X-Forwarded-For is not present, check if x-real-ip is present
+    // Since X-Forwarded-For can contain comma separated list of values, we convert it to ";" delimiter to avoid
+    // downstream parsing errors for other fields where "," is being used
+    if (enableClientIpLogging && requesterIdentity != null) {
+      for (Map.Entry<String, String> entries : ((HttpRequesterIdentity) requesterIdentity).getHttpHeaders().entries()) {

Review Comment:
   nit: entry



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