diff --git a/hbase-server/src/main/java/org/apache/hadoop/hbase/ipc/SimpleRpcScheduler.java b/hbase-server/src/main/java/org/apache/hadoop/hbase/ipc/SimpleRpcScheduler.java
index d9d61c1971e..85bf78d2799 100644
--- a/hbase-server/src/main/java/org/apache/hadoop/hbase/ipc/SimpleRpcScheduler.java
+++ b/hbase-server/src/main/java/org/apache/hadoop/hbase/ipc/SimpleRpcScheduler.java
@@ -52,12 +52,16 @@ public class SimpleRpcScheduler extends RpcScheduler implements ConfigurationObs
   public static final String CALL_QUEUE_HANDLER_FACTOR_CONF_KEY =
       "hbase.ipc.server.callqueue.handler.factor";
 
-  /** If set to 'deadline', the default, uses a priority queue and deprioritizes long-running scans
+  /**
+   * The default, 'fifo', has the least friction but is dumb.
+   * If set to 'deadline', uses a priority queue and deprioritizes long-running scans. Sorting by
+   * priority comes at a cost, reduced throughput.
    */
-  public static final String CALL_QUEUE_TYPE_CONF_KEY = "hbase.ipc.server.callqueue.type";
   public static final String CALL_QUEUE_TYPE_CODEL_CONF_VALUE = "codel";
   public static final String CALL_QUEUE_TYPE_DEADLINE_CONF_VALUE = "deadline";
   public static final String CALL_QUEUE_TYPE_FIFO_CONF_VALUE = "fifo";
+  public static final String CALL_QUEUE_TYPE_CONF_KEY = "hbase.ipc.server.callqueue.type";
+  public static final String CALL_QUEUE_TYPE_CONF_DEFAULT = CALL_QUEUE_TYPE_FIFO_CONF_VALUE;
 
   /** max delay in msec used to bound the deprioritized requests */
   public static final String QUEUE_MAX_CALL_DELAY_CONF_KEY
@@ -181,7 +185,7 @@ public class SimpleRpcScheduler extends RpcScheduler implements ConfigurationObs
     this.abortable = server;
 
     String callQueueType = conf.get(CALL_QUEUE_TYPE_CONF_KEY,
-      CALL_QUEUE_TYPE_DEADLINE_CONF_VALUE);
+        CALL_QUEUE_TYPE_FIFO_CONF_VALUE);
     float callqReadShare = conf.getFloat(CALL_QUEUE_READ_SHARE_CONF_KEY, 0);
     float callqScanShare = conf.getFloat(CALL_QUEUE_SCAN_SHARE_CONF_KEY, 0);
 
@@ -200,18 +204,18 @@ public class SimpleRpcScheduler extends RpcScheduler implements ConfigurationObs
       // multiple read/write queues
       if (isDeadlineQueueType(callQueueType)) {
         CallPriorityComparator callPriority = new CallPriorityComparator(conf, this.priority);
-        callExecutor = new RWQueueRpcExecutor("RWQ.default", handlerCount, numCallQueues,
+        callExecutor = new RWQueueRpcExecutor("RW.deadline.Q", handlerCount, numCallQueues,
             callqReadShare, callqScanShare, maxQueueLength, conf, abortable,
             BoundedPriorityBlockingQueue.class, callPriority);
       } else if (callQueueType.equals(CALL_QUEUE_TYPE_CODEL_CONF_VALUE)) {
         Object[] callQueueInitArgs = {maxQueueLength, codelTargetDelay, codelInterval,
           codelLifoThreshold, numGeneralCallsDropped, numLifoModeSwitches};
-        callExecutor = new RWQueueRpcExecutor("RWQ.default", handlerCount,
+        callExecutor = new RWQueueRpcExecutor("RW.codel.Q", handlerCount,
           numCallQueues, callqReadShare, callqScanShare,
           AdaptiveLifoCoDelCallQueue.class, callQueueInitArgs,
           AdaptiveLifoCoDelCallQueue.class, callQueueInitArgs);
       } else {
-        callExecutor = new RWQueueRpcExecutor("RWQ.default", handlerCount, numCallQueues,
+        callExecutor = new RWQueueRpcExecutor("RW.fifo.Q", handlerCount, numCallQueues,
           callqReadShare, callqScanShare, maxQueueLength, conf, abortable);
       }
     } else {
@@ -219,26 +223,26 @@ public class SimpleRpcScheduler extends RpcScheduler implements ConfigurationObs
       if (isDeadlineQueueType(callQueueType)) {
         CallPriorityComparator callPriority = new CallPriorityComparator(conf, this.priority);
         callExecutor =
-          new BalancedQueueRpcExecutor("BalancedQ.default", handlerCount, numCallQueues,
+          new BalancedQueueRpcExecutor("B.deadline.Q", handlerCount, numCallQueues,
             conf, abortable, BoundedPriorityBlockingQueue.class, maxQueueLength, callPriority);
       } else if (callQueueType.equals(CALL_QUEUE_TYPE_CODEL_CONF_VALUE)) {
         callExecutor =
-          new BalancedQueueRpcExecutor("BalancedQ.default", handlerCount, numCallQueues,
+          new BalancedQueueRpcExecutor("B.codel.Q", handlerCount, numCallQueues,
             conf, abortable, AdaptiveLifoCoDelCallQueue.class, maxQueueLength,
             codelTargetDelay, codelInterval, codelLifoThreshold,
             numGeneralCallsDropped, numLifoModeSwitches);
       } else {
-        callExecutor = new BalancedQueueRpcExecutor("BalancedQ.default", handlerCount,
+        callExecutor = new BalancedQueueRpcExecutor("B.fifo.Q", handlerCount,
             numCallQueues, maxQueueLength, conf, abortable);
       }
     }
     // Create 2 queues to help priorityExecutor be more scalable.
     this.priorityExecutor = priorityHandlerCount > 0 ?
-      new BalancedQueueRpcExecutor("BalancedQ.priority", priorityHandlerCount, 2,
+      new BalancedQueueRpcExecutor("B.priority.fifo.Q", priorityHandlerCount, 2,
           maxPriorityQueueLength):
       null;
    this.replicationExecutor =
-     replicationHandlerCount > 0 ? new BalancedQueueRpcExecutor("BalancedQ.replication",
+     replicationHandlerCount > 0 ? new BalancedQueueRpcExecutor("B.replication.fifo.Q",
        replicationHandlerCount, 1, maxQueueLength, conf, abortable) : null;
   }