Cassandra Datastax OpsCenter LDAP配置错误

我已经为datastax OpsCenter身份验证配置了LDAP设置。虽然应用程序能够在搜索中找到帐户（通过启用调试选项以进行其他日志记录来获取此详细信息），但最终会出现如下异常：

2017-05-05 22:30:18,658 [opscenterd] DEBUG: Unbind successful (PoolThread-twisted.internet.reactor-2)
2017-05-05 22:30:18,658 [ClusterTest] DEBUG: received a NoD, closing everything (NioProcessor-1)
2017-05-05 22:30:18,662 [opscenterd]  WARN: Unauthorized while calling LoginController: User filter insufficient to uniquely identify users. (MainThread)

如果我在这里遗漏了什么，有人能指引我吗

下面是我在配置文件（opcenterd.conf）中配置的LDAP设置

server_host = myad01.test.domain.com    
server_port = 389    
uri_scheme = ldaps     
search_dn = CN=ldap-account,OU=Service Accounts,DC=test,DC=domain,DC=com     
search_password = *******    
user_search_base = dc=test,dc=domain,dc=com     
user_search_filter = (sAMAccountName={0})     
admin_group_name = DB Admin, DB Dev    
user_memberof_attribute = memberof