diff --git a/Authors b/Authors
index 3a451dd2f240..a75a39a20ee0 100644
--- a/Authors
+++ b/Authors
@@ -196,6 +196,7 @@ Vasiliy Shlykov <vash@vasiliyshlykov.org>
 Vishvananda Ishaya <vishvananda@gmail.com>
 Vivek Y S <vivek.ys@gmail.com>
 Vladimir Popovski <vladimir@zadarastorage.com>
+Vaddi kiran <vaddi_kiran@persistent.co.in>
 William Henry <whenry@redhat.com>
 William Kelly <william.kelly@rackspace.com>
 William Wolf <throughnothing@gmail.com>
diff --git a/nova/api/openstack/compute/servers.py b/nova/api/openstack/compute/servers.py
index ef7e29ac0fe3..6390e8b348c0 100644
--- a/nova/api/openstack/compute/servers.py
+++ b/nova/api/openstack/compute/servers.py
@@ -800,6 +800,10 @@ class Controller(wsgi.Controller):
 body['server']['auto_disk_config'])
 update_dict['auto_disk_config'] = auto_disk_config
 
+ if 'hostId' in body['server']:
+ msg = _("HostId cannot be updated.")
+ raise exc.HTTPBadRequest(explanation=msg)
+
 try:
 instance = self.compute_api.get(ctxt, id)
 self.compute_api.update(ctxt, instance, **update_dict)
</div><div class="naked_ctrl">
<form action="/index.cgi/larger-text" method="get" name="gate">
<p><a href="http://altstyle.alfasado.net">AltStyle</a> によって変換されたページ <a href="https://opendev.org/openstack/nova/commit/6a4c092cb8d9bd2f99a29392bc3b5e566f858b52.diff">(-&gt;オリジナル)</a>
/ <label>アドレス: <input type="text" name="naked_post_url" value="https://opendev.org/openstack/nova/commit/6a4c092cb8d9bd2f99a29392bc3b5e566f858b52.diff" size="22" /></label> <label>モード: <select name="naked_post_mode">
<option value="default">デフォルト</option>
<option value="speech">音声ブラウザ</option>
<option value="ruby">ルビ付き</option>
<option value="contrast">配色反転</option>
<option value="larger-text" selected="selected">文字拡大</option>
<option value="mobile">モバイル</option>
</select>
<input type="submit" value="表示" />
</p>
</form>
</div>