diff --git a/spug_api/apps/exec/executors.py b/spug_api/apps/exec/executors.py
index 2c8c884..de61db6 100644
--- a/spug_api/apps/exec/executors.py
+++ b/spug_api/apps/exec/executors.py
@@ -14,9 +14,9 @@ def exec_worker_handler(job):
 
 
 class Job:
-    def __init__(self, hostname, port, username, pkey, command, token=None):
+    def __init__(self, key, hostname, port, username, pkey, command, token=None):
         self.ssh = SSH(hostname, port, username, pkey)
-        self.key = f'{hostname}:{port}'
+        self.key = key
         self.command = command
         self.token = token
         self.rds_cli = None
diff --git a/spug_api/apps/exec/views.py b/spug_api/apps/exec/views.py
index 5553984..6bd5020 100644
--- a/spug_api/apps/exec/views.py
+++ b/spug_api/apps/exec/views.py
@@ -56,6 +56,7 @@ def do_task(request):
         token, rds = uuid.uuid4().hex, get_redis_connection()
         for host in Host.objects.filter(id__in=form.host_ids):
             data = dict(
+                key=host.id,
                 token=token,
                 hostname=host.hostname,
                 port=host.port,
diff --git a/spug_web/src/pages/exec/task/ExecConsole.js b/spug_web/src/pages/exec/task/ExecConsole.js
index 0a87201..362ed1a 100644
--- a/spug_web/src/pages/exec/task/ExecConsole.js
+++ b/spug_web/src/pages/exec/task/ExecConsole.js
@@ -37,6 +37,9 @@ class ExecConsole extends React.Component {
     const protocol = window.location.protocol === 'https:' ? 'wss:' : 'ws:';
     this.socket = new WebSocket(`${protocol}//${window.location.host}/api/ws/exec/${store.token}/?x-token=${X_TOKEN}`);
     this.socket.onopen = () => {
+      for (let key of Object.keys(store.outputs)) {
+        this.handleWrite(key, '\x1b[36m### Waiting for scheduling ...\x1b[0m\r\n')
+      }
       this.socket.send('ok');
     };
     this.socket.onmessage = e => {
@@ -46,13 +49,7 @@ class ExecConsole extends React.Component {
         const {key, data, status} = JSON.parse(e.data);
         if (status !== undefined) store.outputs[key].status = status;
         if (data) {
-          if (this.terms[key]) {
-            this.terms[key].write(data)
-          } else if (this.outputs[key]) {
-            this.outputs[key] += data
-          } else {
-            this.outputs[key] = data
-          }
+          this.handleWrite(key, data)
         }
       }
     };
@@ -60,9 +57,9 @@ class ExecConsole extends React.Component {
       for (let key of Object.keys(store.outputs)) {
         store.outputs[key]['status'] = 'websocket error'
         if (this.terms[key]) {
-          this.terms[key].write('\u001b[31mWebsocket connection failed!\u001b[0m')
+          this.terms[key].write('\x1b[31mWebsocket connection failed!\x1b[0m')
         } else {
-          this.outputs[key] = '\u001b[31mWebsocket connection failed!\u001b[0m'
+          this.outputs[key] = '\x1b[31mWebsocket connection failed!\x1b[0m'
         }
       }
     }
@@ -73,6 +70,16 @@ class ExecConsole extends React.Component {
     store.isFullscreen = false;
   }
 
+  handleWrite = (key, data) => {
+    if (this.terms[key]) {
+      this.terms[key].write(data)
+    } else if (this.outputs[key]) {
+      this.outputs[key] += data
+    } else {
+      this.outputs[key] = data
+    }
+  }
+
   genExtra = (status) => {
     if (status === -2) {
       return <LoadingOutlined style={{fontSize: 20, color: '#108ee9'}}/>;
diff --git a/spug_web/src/pages/exec/task/index.js b/spug_web/src/pages/exec/task/index.js
index c6e8c67..0f7c0f4 100644
--- a/spug_web/src/pages/exec/task/index.js
+++ b/spug_web/src/pages/exec/task/index.js
@@ -24,6 +24,10 @@ class TaskIndex extends React.Component {
     }
   }
 
+  componentWillUnmount() {
+    store.host_ids = []
+  }
+
   handleSubmit = () => {
     this.setState({loading: true});
     const host_ids = store.host_ids;
diff --git a/spug_web/src/pages/exec/task/store.js b/spug_web/src/pages/exec/task/store.js
index b05d4d8..16ff3c1 100644
--- a/spug_web/src/pages/exec/task/store.js
+++ b/spug_web/src/pages/exec/task/store.js
@@ -29,9 +29,8 @@ class Store {
     } else {
       for (let id of this.host_ids) {
         const host = hostStore.idMap[id];
-        const key = `${host.hostname}:${host.port}`;
-        this.outputs[key] = {
-          title: `${host.name}(${key})`,
+        this.outputs[host.id] = {
+          title: `${host.name}(${host.hostname}:${host.port})`,
           status: -2
         }
       }