CentOS7下安装vsftpd后配置加入chroot_local_user=YES启动失败

[wzwdev1980]

CentOS7下安装vsftpd，加入下面配置

use_localtime=YES
allow_writeable_chroot=YES
anon_root=/alidata/ftp

启动vsftpd正常

如果再加入下面的配置项，将所有用户限定在主目录内
chroot_local_user=YES

则启动失败，日志如下，请大家帮忙看怎么解决：

systemctl restart vsftpd
Job for vsftpd.service failed because the control process exited with error code. See "systemctl status vsftpd.service" and "journalctl -xe" for details.

systemctl status vsftpd.service
 vsftpd.service - Vsftpd ftp daemon
   Loaded: loaded (/usr/lib/systemd/system/vsftpd.service; enabled; vendor preset: disabled)
   Active: failed (Result: exit-code) since Tue 2016-09-06 16:01:29 CST; 41s ago
  Process: 24356 ExecStart=/usr/sbin/vsftpd /etc/vsftpd/vsftpd.conf (code=exited, status=2)
 Main PID: 22357 (code=killed, signal=TERM)

Sep 06 16:01:29 ihorn-product systemd[1]: Starting Vsftpd ftp daemon...
Sep 06 16:01:29 ihorn-product systemd[1]: vsftpd.service: control process exited, code=exited status=2
Sep 06 16:01:29 ihorn-product systemd[1]: Failed to start Vsftpd ftp daemon.
Sep 06 16:01:29 ihorn-product systemd[1]: Unit vsftpd.service entered failed state.
Sep 06 16:01:29 ihorn-product systemd[1]: vsftpd.service failed.

跟踪了错误如下：

-- Unit vsftpd.service has begun starting up.
Sep 06 16:01:29 ihorn-product systemd[1]: vsftpd.service: control process exited, code=exited status=2
Sep 06 16:01:29 ihorn-product systemd[1]: Failed to start Vsftpd ftp daemon.
-- Subject: Unit vsftpd.service has failed
-- Defined-By: systemd
-- Support: http://lists.freedesktop.org/mailman/listinfo/systemd-devel
-- 
-- Unit vsftpd.service has failed.
-- 
-- The result is failed.
Sep 06 16:01:29 ihorn-product systemd[1]: Unit vsftpd.service entered failed state.

[wzwdev1980]

错误详情

-- Unit vsftpd.service has begun starting up.
Sep 06 16:01:29 ihorn-product systemd[1]: vsftpd.service: control process exited, code=exited status=2
Sep 06 16:01:29 ihorn-product systemd[1]: Failed to start Vsftpd ftp daemon.
-- Subject: Unit vsftpd.service has failed
-- Defined-By: systemd
-- Support: http://lists.freedesktop.org/mailman/listinfo/systemd-devel
-- 
-- Unit vsftpd.service has failed.
-- 
-- The result is failed.
Sep 06 16:01:29 ihorn-product systemd[1]: Unit vsftpd.service entered failed state.
Sep 06 16:01:29 ihorn-product systemd[1]: vsftpd.service failed.
Sep 06 16:01:29 ihorn-product polkitd[5405]: Unregistered Authentication Agent for unix-process:24350:806278345 (system bus name :1.32169, object path /org/freedesktop/PolicyKit1/AuthenticationAgent, locale en_US.UTF-8) (disc