[Profiling] Fix ES queries for serverless

Author: rockdaboot

x-pack/plugin/profiling/src/internalClusterTest/java/org/elasticsearch/xpack/profiling/action/GetStackTracesActionIT.java

@@ -98,7 +98,6 @@ public void testGetStackTracesGroupedByServiceName() throws Exception {
             TransportGetStackTracesAction.DEFAULT_SAMPLING_FREQUENCY
         );
         assertEquals(2L, response.getStackTraceEvents().get(traceEventID).count);
-        assertEquals(Long.valueOf(2L), response.getStackTraceEvents().get(traceEventID).subGroups.getCount("basket"));
 
         assertNotNull(response.getStackTraces());
         // just do a high-level spot check. Decoding is tested in unit-tests

x-pack/plugin/profiling/src/main/java/org/elasticsearch/xpack/profiling/action/GetStackTracesResponseBuilder.java

@@ -20,6 +20,7 @@ class GetStackTracesResponseBuilder {
     private Map<TraceEventID, TraceEvent> stackTraceEvents;
     private double samplingRate;
     private long totalSamples;
+    private long samplingFrequency;
     private Double requestedDuration;
     private final Double awsCostFactor;
     private final Double azureCostFactor;
@@ -155,4 +156,12 @@ public GetStackTracesResponse build() {
         }
         return new GetStackTracesResponse(stackTraces, stackFrames, executables, stackTraceEvents, totalFrames, samplingRate, totalSamples);
     }
+
+    public void setSamplingFrequency(long samplingFrequency) {
+        this.samplingFrequency = samplingFrequency;
+    }
+
+    public long getSamplingFrequency() {
+        return samplingFrequency;
+    }
 }