cdc: update info message for ‘/api/v2/changefeeds/{changefeed_id}/syn…

…ced’ (#10399)

ref #10289

cdc/api/v2/changefeed.go

@@ -1002,12 +1002,12 @@ func (h *OpenAPIV2) synced(c *gin.Context) {
 		var message string
 		if (oracle.ExtractPhysical(status.PullerResolvedTs) - oracle.ExtractPhysical(status.CheckpointTs)) <
 			cfg.ReplicaConfig.SyncedStatus.CheckpointInterval*1000 {
-			message = fmt.Sprintf("Please check whether pd is healthy and tikv region is all available. " +
-				"If pd is not healthy or tikv region is not available, the data syncing is finished. " +
-				"When pd is offline means that pd is not healthy. For tikv region, you can check the grafana info " +
-				"in 'TiKV-Details-Resolved-Ts-Max Leader Resolved TS gap'. If the gap is a large value, such as a few minutes, " +
-				"it means some regions in tikv are unavailable. " +
-				" Otherwise the data syncing is not finished, please wait")
+			message = fmt.Sprintf("Please check whether PD is online and TiKV Regions are all available. " +
+				"If PD is offline or some TiKV regions are not available, it means that the data syncing process is complete. " +
+				"To check whether TiKV regions are all available, you can view " +
+				"'TiKV-Details' > 'Resolved-Ts' > 'Max Leader Resolved TS gap' on Grafana. " +
+				"If the gap is large, such as a few minutes, it means that some regions in TiKV are unavailable. " +
+				"Otherwise, if the gap is small and PD is online, it means the data syncing is incomplete, so please wait")
 		} else {
 			message = "The data syncing is not finished, please wait"
 		}

cdc/api/v2/changefeed_test.go

@@ -1115,12 +1115,12 @@ func TestChangefeedSynced(t *testing.T) {
 		err := json.NewDecoder(w.Body).Decode(&resp)
 		require.Nil(t, err)
 		require.Equal(t, false, resp.Synced)
-		require.Equal(t, "Please check whether pd is healthy and tikv region is all available. "+
-			"If pd is not healthy or tikv region is not available, the data syncing is finished. "+
-			"When pd is offline means that pd is not healthy. For tikv region, you can check the grafana info "+
-			"in 'TiKV-Details-Resolved-Ts-Max Leader Resolved TS gap'. If the gap is a large value, such as a few minutes, "+
-			"it means some regions in tikv are unavailable. "+
-			" Otherwise the data syncing is not finished, please wait", resp.Info)
+		require.Equal(t, "Please check whether PD is online and TiKV Regions are all available. "+
+			"If PD is offline or some TiKV regions are not available, it means that the data syncing process is complete. "+
+			"To check whether TiKV regions are all available, you can view "+
+			"'TiKV-Details' > 'Resolved-Ts' > 'Max Leader Resolved TS gap' on Grafana. "+
+			"If the gap is large, such as a few minutes, it means that some regions in TiKV are unavailable. "+
+			"Otherwise, if the gap is small and PD is online, it means the data syncing is incomplete, so please wait", resp.Info)
 	}
 
 	{

tests/integration_tests/synced_status/run.sh

@@ -176,12 +176,12 @@ function run_case_with_unavailable_tikv() {
 		exit 1
 	fi
 	info=$(echo $synced_status | jq -r '.info')
-	target_message="Please check whether pd is healthy and tikv region is all available. \
-If pd is not healthy or tikv region is not available, the data syncing is finished. \
-When pd is offline means that pd is not healthy. For tikv region, you can check the grafana info \
-in 'TiKV-Details-Resolved-Ts-Max Leader Resolved TS gap'. If the gap is a large value, such as a few minutes, \
-it means some regions in tikv are unavailable. \
-Otherwise the data syncing is not finished, please wait"
+	target_message="Please check whether PD is online and TiKV Regions are all available. \
+If PD is offline or some TiKV regions are not available, it means that the data syncing process is complete. \
+To check whether TiKV regions are all available, you can view \
+'TiKV-Details' > 'Resolved-Ts' > 'Max Leader Resolved TS gap' on Grafana. \
+If the gap is large, such as a few minutes, it means that some regions in TiKV are unavailable. \
+Otherwise, if the gap is small and PD is online, it means the data syncing is incomplete, so please wait"
 
 	if [ "$info" != "$target_message" ]; then
 		echo "synced status info is not correct"
@@ -275,12 +275,12 @@ function run_case_with_failpoint() {
 		exit 1
 	fi
 	info=$(echo $synced_status | jq -r '.info')
-	target_message="Please check whether pd is healthy and tikv region is all available. \
-If pd is not healthy or tikv region is not available, the data syncing is finished. \
-When pd is offline means that pd is not healthy. For tikv region, you can check the grafana info \
-in 'TiKV-Details-Resolved-Ts-Max Leader Resolved TS gap'. If the gap is a large value, such as a few minutes, \
-it means some regions in tikv are unavailable. \
-Otherwise the data syncing is not finished, please wait"
+	target_message="Please check whether PD is online and TiKV Regions are all available. \
+If PD is offline or some TiKV regions are not available, it means that the data syncing process is complete. \
+To check whether TiKV regions are all available, you can view \
+'TiKV-Details' > 'Resolved-Ts' > 'Max Leader Resolved TS gap' on Grafana. \
+If the gap is large, such as a few minutes, it means that some regions in TiKV are unavailable. \
+Otherwise, if the gap is small and PD is online, it means the data syncing is incomplete, so please wait"
 	if [ "$info" != "$target_message" ]; then
 		echo "synced status info is not correct"
 		exit 1