diff --git a/src/ts/@overflow/metric/react/components/TomcatMetric.tsx b/src/ts/@overflow/metric/react/components/TomcatMetric.tsx
index 5f051c1..6f3526f 100644
--- a/src/ts/@overflow/metric/react/components/TomcatMetric.tsx
+++ b/src/ts/@overflow/metric/react/components/TomcatMetric.tsx
@@ -30,9 +30,9 @@ export class TomcatMetric extends React.Component<Props, State> {
   public componentWillMount(): void {
     const data = [];
     for (let i = 0; i < 10; i++) {
-      let maxThread = Math.floor(Math.random() * 10000) + 1000;
-      let currentThread = Math.floor(Math.random() * 10000) + 1000;
-      let busyThread = Math.floor(Math.random() * 10000) + 1000;
+      let maxThread = Math.floor(Math.random() * 100) + 10;
+      let currentThread = Math.floor(Math.random() * 100) + 10;
+      let busyThread = Math.floor(Math.random() * 100) + 10;
 
       let elem = { 'id': i, 'maxThread': maxThread, 'currentThread': currentThread, 'busyThread': busyThread };
       data[i] = elem;
@@ -67,7 +67,7 @@ export class TomcatMetric extends React.Component<Props, State> {
         <LineChart syncId='anyId' width={800} height={300}
                    data={this.state.data} margin={{ top: 5, right: 30, left: 20, bottom: 5 }} >
           <XAxis dataKey='id' />
-          <YAxis />
+          <YAxis dataKey='maxThread'/>
           {/* <CartesianGrid stroke='#ccc' /> */}
           <CartesianGrid strokeDasharray='3 3' />
           <Tooltip content={this.showTooltipData.bind(this)} />