update comment and var name

Signed-off-by: Binbin <[email protected]>

src/cluster_legacy.c

@@ -5002,7 +5002,7 @@ void clusterCron(void) {
 
     /* Ping some random node 1 time every 10 iterations, so that we usually ping
      * one random node every second. */
-    if (server.debug_cluster_random_min_ping && !(iteration % 10)) {
+    if (server.debug_cluster_random_ping && !(iteration % 10)) {
         int j;
 
         /* Check a few random nodes and ping the one with the oldest

src/debug.c

@@ -437,7 +437,7 @@ void debugCommand(client *c) {
             "    This is valid only when DROP-CLUSTER-PACKET-FILTER is set to a valid packet type.",
             "    When set to 1, the cluster link is closed after dropping a packet based on the filter.",
             "CLUSTER-RANDOM-MIN-PING <0|1>",
-            "    Enable or disable the cluster random min ping.",
+            "    Send cluster ping to a random node every second. Enabled by default.",
             "OOM",
             "    Crash the server simulating an out-of-memory error.",
             "PANIC",
@@ -610,7 +610,7 @@ void debugCommand(client *c) {
         server.debug_cluster_close_link_on_packet_drop = atoi(c->argv[2]->ptr);
         addReply(c, shared.ok);
     } else if (!strcasecmp(c->argv[1]->ptr, "cluster-random-min-ping") && c->argc == 3) {
-        server.debug_cluster_random_min_ping = atoi(c->argv[2]->ptr);
+        server.debug_cluster_random_ping = atoi(c->argv[2]->ptr);
         addReply(c, shared.ok);
     } else if (!strcasecmp(c->argv[1]->ptr, "object") && (c->argc == 3 || c->argc == 4)) {
         dictEntry *de;

src/server.c

@@ -2705,7 +2705,7 @@ void initServer(void) {
     server.blocking_op_nesting = 0;
     server.thp_enabled = 0;
     server.cluster_drop_packet_filter = -1;
-    server.debug_cluster_random_min_ping = 1;
+    server.debug_cluster_random_ping = 1;
     server.reply_buffer_peak_reset_time = REPLY_BUFFER_DEFAULT_PEAK_RESET_TIME;
     server.reply_buffer_resizing_enabled = 1;
     server.client_mem_usage_buckets = NULL;

src/server.h

@@ -2189,7 +2189,7 @@ struct valkeyServer {
     int cluster_slot_stats_enabled;                        /* Cluster slot usage statistics tracking enabled. */
     /* Debug config that goes along with cluster_drop_packet_filter. When set, the link is closed on packet drop. */
     uint32_t debug_cluster_close_link_on_packet_drop : 1;
-    uint32_t debug_cluster_random_min_ping : 1;
+    uint32_t debug_cluster_random_ping : 1;
     sds cached_cluster_slot_info[CACHE_CONN_TYPE_MAX]; /* Index in array is a bitwise or of CACHE_CONN_TYPE_* */
     /* Scripting */
     mstime_t busy_reply_threshold;  /* Script / module timeout in milliseconds */