[minor](log) add details for unqueryable replicas (#19792)

Add a new FE config: show_details_for_unaccessible_tablet.
Default is false, when set to true, if a query is unable to select a healthy replica,
the detailed information of all the replicas of the tablet including the specific reason why they are unqueryable,
will be printed out.

fe/fe-common/src/main/java/org/apache/doris/common/Config.java

@@ -1968,6 +1968,13 @@ public class Config extends ConfigBase {
      * optimization of table structures
      *
      */
-    @ConfField(mutable = true, masterOnly = false)
+    @ConfField(mutable = true)
     public static boolean enable_query_hit_stats = false;
+
+    @ConfField(mutable = true, description = {
+            "设置为 true，如果查询无法选择到健康副本时，会打印出该tablet所有副本的详细信息，" + "以及不可查询的具体原因。",
+            "When set to true, if a query is unable to select a healthy replica, "
+                    + "the detailed information of all the replicas of the tablet,"
+                    + " including the specific reason why they are unqueryable, will be printed out."})
+    public static boolean show_details_for_unaccessible_tablet = false;
 }

fe/fe-core/src/main/java/org/apache/doris/catalog/Tablet.java

@@ -277,6 +277,25 @@ public class Tablet extends MetaObject implements Writable {
         return allQueryableReplica;
     }
 
+    public String getDetailsStatusForQuery(long visibleVersion) {
+        StringBuilder sb = new StringBuilder("Visible Replicas:");
+        sb.append("Visible version: ").append(visibleVersion);
+        sb.append(", Replicas: ");
+        for (Replica replica : replicas) {
+            sb.append(replica.toString());
+        }
+        sb.append(", Backends: ");
+        for (Replica replica : replicas) {
+            Backend be = Env.getCurrentSystemInfo().getBackend(replica.getBackendId());
+            if (be == null) {
+                sb.append("Backend [id=" + id + ", not exists]");
+            } else {
+                sb.append(be.getHealthyStatus());
+            }
+        }
+        return sb.toString();
+    }
+
     public Replica getReplicaById(long replicaId) {
         for (Replica replica : replicas) {
             if (replica.getId() == replicaId) {

fe/fe-core/src/main/java/org/apache/doris/planner/OlapScanNode.java

@@ -737,14 +737,16 @@ public class OlapScanNode extends ScanNode {
             // random shuffle List && only collect one copy
             List<Replica> replicas = tablet.getQueryableReplicas(visibleVersion);
             if (replicas.isEmpty()) {
-                LOG.error("no queryable replica found in tablet {}. visible version {}",
-                        tabletId, visibleVersion);
-                if (LOG.isDebugEnabled()) {
-                    for (Replica replica : tablet.getReplicas()) {
-                        LOG.debug("tablet {}, replica: {}", tabletId, replica.toString());
-                    }
+                LOG.warn("no queryable replica found in tablet {}. visible version {}", tabletId, visibleVersion);
+                StringBuilder sb = new StringBuilder(
+                        "Failed to get scan range, no queryable replica found in tablet: " + tabletId);
+                if (Config.show_details_for_unaccessible_tablet) {
+                    sb.append(". Reason: ").append(tablet.getDetailsStatusForQuery(visibleVersion));
                 }
-                throw new UserException("Failed to get scan range, no queryable replica found in tablet: " + tabletId);
+                if (LOG.isDebugEnabled()) {
+                    LOG.debug(sb.toString());
+                }
+                throw new UserException(sb.toString());
             }
 
             int useFixReplica = -1;

fe/fe-core/src/main/java/org/apache/doris/system/Backend.java

@@ -601,15 +601,20 @@ public class Backend implements Writable {
 
         Backend backend = (Backend) obj;
 
-        return (id == backend.id) && (host.equals(backend.host)) && (heartbeatPort == backend.heartbeatPort)
-                && (bePort == backend.bePort) && (isAlive.get() == backend.isAlive.get());
+        return (id == backend.id) && (host.equals(backend.host)) && (heartbeatPort == backend.heartbeatPort) && (bePort
+                == backend.bePort) && (isAlive.get() == backend.isAlive.get());
     }
 
     @Override
     public String toString() {
         return "Backend [id=" + id + ", host=" + host + ", heartbeatPort=" + heartbeatPort + ", alive=" + isAlive.get()
-                + ", lastStartTime=" + TimeUtils.longToTimeString(lastStartTime)
-                + ", tags: " + tagMap + "]";
+                + ", lastStartTime=" + TimeUtils.longToTimeString(lastStartTime) + ", tags: " + tagMap + "]";
+    }
+
+    public String getHealthyStatus() {
+        return "Backend [id=" + id + ", isDecommission: " + isDecommissioned + ", backendState: " + backendState
+                + ", backendStatus: " + backendStatus + ", isAlive: " + isAlive.get() + ", lastUpdateTime: "
+                + TimeUtils.longToTimeString(lastUpdateMs);
     }
 
     public String getOwnerClusterName() {
@@ -746,6 +751,13 @@ public class Backend implements Writable {
         public volatile boolean isQueryDisabled = false;
         @SerializedName("isLoadDisabled")
         public volatile boolean isLoadDisabled = false;
+
+        @Override
+        public String toString() {
+            return "[" + "lastSuccessReportTabletsTime='" + lastSuccessReportTabletsTime + '\''
+                    + ", lastStreamLoadTime=" + lastStreamLoadTime + ", isQueryDisabled=" + isQueryDisabled
+                    + ", isLoadDisabled=" + isLoadDisabled + "]";
+        }
     }
 
     public Tag getLocationTag() {