---
title: Horizon web页面登录出错问题
description: "Horizon Web登录失败。"
url: https://www.hikunpeng.com/document/detail/zh/kunpengcpfs/troubleshooting/trouble/kunpengopenstackstein_09_0012.html
sourcePath: /source/zh/kunpengcpfs/troubleshooting/trouble/kunpengopenstackstein_09_0012.html
indexId: f87083bcd77207e00e2d8557ed56d02886ffee59c7dc1b1e482bddb9e021621381
---
# Horizon web页面登录出错问题

#### 问题现象描述

Horizon Web登录失败。


#### 关键过程、根本原因分析

“/var/log/httpd/openstack-dashboard-error_log”有如下日志：

```
[wsgi:error] [pid 600967:tid 601105] [remote 192.255.5.10:13113] INFO openstack_auth.forms Login successful for user "admin" using domain "default", remote address 192.255.5.10.
[wsgi:error] [pid 600967:tid 601105] [remote 192.255.5.10:13113] ERROR django.request Internal Server Error: /dashboard/auth/login/
......
[wsgi:error] [pid 600967:tid 601105] [remote 192.255.5.10:13113] RuntimeError: Unable to create a new session key. It is likely that the cache is unavailable.
```

从日志上看已经登录成功，但是页面没有正常跳转，session cache异常。


#### 结论、解决方案及效果

1. 检查“/etc/openstack-dashboard/local_settings”的如下配置是否正确。

```
OPENSTACK_HOST = "controller"
SESSION_ENGINE = 'django.contrib.sessions.backends.cache'
CACHES = {
'default': {
'BACKEND': 'django.core.cache.backends.memcached.MemcachedCache',
'LOCATION': 'controller:11211',
}
}
```


  controller为控制节点主机名。

2. 检查“/etc/sysconfig/memcached”的如下配置是否正确。

```
OPTIONS="-l 127.0.0.1,::1,controller"
```


  controller为控制节点主机名。

3. 重启服务。
  1 systemctl restart httpd.service memcached.service