[1751] addition of a pid argument in the set command in order for stats to identify the sender instance

src/bin/auth/statistics.cc

@@ -112,9 +112,13 @@ AuthCountersImpl::submitStatistics() const {
         return (false);
     }
     std::stringstream statistics_string;
+    // add pid in order for stats to identify which auth sends
+    // statistics in the situation that multiple auth instances are
+    // working
     statistics_string << "{\"command\": [\"set\","
                       <<   "{ \"owner\": \"Auth\","
-                      <<   "  \"data\":"
+                      <<   "  \"pid\":" << getpid()
+                      <<   ", \"data\":"
                       <<     "{ \"queries.udp\": "
                       <<     server_counter_.get(AuthCounters::SERVER_UDP_QUERY)
                       <<     ", \"queries.tcp\": "

src/bin/auth/tests/statistics_unittest.cc

@@ -281,6 +281,8 @@ TEST_F(AuthCountersTest, submitStatisticsWithoutValidator) {
                          ->get(0)->stringValue());
     EXPECT_EQ("Auth", statistics_session_.sent_msg->get("command")
                          ->get(1)->get("owner")->stringValue());
+    EXPECT_TRUE(statistics_session_.sent_msg->get("command")
+                ->get(1)->get("pid")->intValue() > 0);
     ConstElementPtr statistics_data = statistics_session_.sent_msg
                                           ->get("command")->get(1)
                                           ->get("data");