diff --git a/src/observer/ob_server_utils.cpp b/src/observer/ob_server_utils.cpp
index 5cf12a4b0d..7a4f016bec 100644
--- a/src/observer/ob_server_utils.cpp
+++ b/src/observer/ob_server_utils.cpp
@@ -91,8 +91,9 @@ int ObServerUtils::cal_all_part_disk_size(const int64_t suggested_data_disk_size
 {
   int ret = OB_SUCCESS;
 
-// background information about default disk percentage
-// https://yuque.antfin-inc.com/ob/rootservice/buzmfz
+// background information about default disk percentage:
+// If not in shared mode, disk will be used up to 90%.
+// If in shared mode, data and clog disk usage will be up to 60% and 30%
   const int64_t DEFAULT_DISK_PERCENTAGE_IN_SEPRATE_MODE = 90;
   const int64_t DEFAULT_DATA_DISK_PERCENTAGE_IN_SHARED_MODE = 60;
   const int64_t DEFAULT_CLOG_DISK_PERCENTAGE_IN_SHARED_MODE = 30;
diff --git a/src/observer/ob_service.cpp b/src/observer/ob_service.cpp
index 1e1b02e3c6..680a8ffeb1 100644
--- a/src/observer/ob_service.cpp
+++ b/src/observer/ob_service.cpp
@@ -494,7 +494,7 @@ int ObService::get_min_sstable_schema_version(
     for (int i = 0; OB_SUCC(ret) && i < arg.tenant_id_arg_list_.size(); ++i) {
       // The minimum schema_version used by storage will increase with the major version,
       // storage only need to keep schema history used by a certain number major version.
-      // For storage, there is no need to the server level statistics: https://yuque.antfin-inc.com/ob/rootservice/feqqfr
+      // For storage, there is no need to the server level statistics.
       // min_schema_version = scheduler.get_min_schema_version(arg.tenant_id_arg_list_.at(i));
       int tmp_ret = OB_SUCCESS;
       const uint64_t tenant_id = arg.tenant_id_arg_list_.at(i);
@@ -1840,7 +1840,8 @@ int ObService::detect_master_rs_ls(
     }
   } else if (replica.is_strong_leader()) {
     // case 2 : replica is leader, do not use in_service to check whether it is leader or not
-    //          use in_service could lead to bad case: https://yuque.antfin.com/ob/rootservice/pbw2qw
+    //          use in_service could lead to bad case:
+    //          For more info, to see docs on yuque rootservice/pbw2qw
     if (OB_FAIL(generate_master_rs_ls_info_(replica, ls_info))) {
       LOG_WARN("generate master rs ls info failed", KR(ret), K(replica), K(ls_info));
     } else if (OB_FAIL(result.init(ObRole::LEADER, master_rs, replica, ls_info))) {
diff --git a/src/share/ob_cluster_version.h b/src/share/ob_cluster_version.h
index a08432998f..40a3325832 100644
--- a/src/share/ob_cluster_version.h
+++ b/src/share/ob_cluster_version.h
@@ -177,7 +177,6 @@ cal_version(const uint64_t major, const uint64_t minor, const uint64_t major_pat
 // 1. After 4.0, each cluster_version is corresponed to a data version.
 // 2. cluster_version and data_version is not compariable.
 // 3. TODO: If you update data_version below, please update DATA_CURRENT_VERSION & ObUpgradeChecker too.
-// For more detail: https://yuque.antfin-inc.com/ob/rootservice/xywr36
 #define DATA_VERSION_4_0_0_0 (oceanbase::common::cal_version(4, 0, 0, 0))
 #define DATA_VERSION_4_1_0_0 (oceanbase::common::cal_version(4, 1, 0, 0))
 
diff --git a/src/share/parameter/ob_parameter_seed.ipp b/src/share/parameter/ob_parameter_seed.ipp
index c76f0662c8..ab47e15454 100644
--- a/src/share/parameter/ob_parameter_seed.ipp
+++ b/src/share/parameter/ob_parameter_seed.ipp
@@ -31,7 +31,7 @@ DEF_STR(redundancy_level, OB_CLUSTER_PARAMETER, "NORMAL",
         "HIGH: tolerate two disk failure if disk count is enough",
         ObParameterAttr(Section::SSTABLE, Source::DEFAULT, EditLevel::DYNAMIC_EFFECTIVE))
 // background information about disk space configuration
-// https://yuque.antfin-inc.com/ob/rootservice/buzmfz
+// ObServerUtils::get_data_disk_info_in_config()
 DEF_CAP(datafile_size, OB_CLUSTER_PARAMETER, "0", "[0M,)", "size of the data file. Range: [0, +∞)",
         ObParameterAttr(Section::SSTABLE, Source::DEFAULT, EditLevel::DYNAMIC_EFFECTIVE));
 DEF_INT(datafile_disk_percentage, OB_CLUSTER_PARAMETER, "0", "[0,99]",
diff --git a/src/share/schema/ob_multi_version_schema_service.cpp b/src/share/schema/ob_multi_version_schema_service.cpp
index 77e4951061..64448c9b92 100644
--- a/src/share/schema/ob_multi_version_schema_service.cpp
+++ b/src/share/schema/ob_multi_version_schema_service.cpp
@@ -2224,8 +2224,7 @@ int ObMultiVersionSchemaService::async_refresh_schema(
 /*
  * 1. If tenant_id is OB_INVALID_TENANT_ID, it means refresh the schema of all tenants,
  *  otherwise only the schema of the corresponding tenant will be refreshed.
- * 2. The new schema_version broadcast mechanism does not support the read-only zone scheme. For details, see:
- *  https://yuque.antfin-inc.com/ob/rootservice/gxom1e
+ * 2. The new schema_version broadcast mechanism does not support the read-only zone scheme.
  * 3. When refreshing the schema, you must first obtain the schema_version version
  *  that each tenant wants to refresh from the internal table:
  *  1) For system tenants of the primary cluster and standalone cluster, the schema refresh is strengthened
diff --git a/src/share/schema/ob_multi_version_schema_service.h b/src/share/schema/ob_multi_version_schema_service.h
index 088ee38d73..6088ddb8e7 100644
--- a/src/share/schema/ob_multi_version_schema_service.h
+++ b/src/share/schema/ob_multi_version_schema_service.h
@@ -142,7 +142,6 @@ public:
   // 1. tenant_schema_version is the schema_version of the corresponding tenant
   // 2. sys_schema_version is the schema_version of the system tenant. For system tenants,
   //  the value will be reset to tenant_schema_version
-  // https://yuque.antfin-inc.com/ob/rootservice/gxom1e
   virtual int get_tenant_schema_guard(const uint64_t tenant_id,
                                       ObSchemaGetterGuard &guard,
                                       int64_t tenant_schema_version = common::OB_INVALID_VERSION,