public long startExecuteFunction() {
    stats.incInt(executeFunctionInProgressId, 1);
    sendStats.incInt(executeFunctionSendInProgressId, 1);
    return getStatTime();
  }
Records that the specified execute Function is starting
<p>
Note: for every call of this method the caller must also call {@link #endExecuteFunctionSend}
and {@link #endExecuteFunction}.

@return the start time of this ExecuteFunction
geode-core/src/main/java/org/apache/geode/cache/client/internal/ConnectionStats.java