CTBD don't start when create soft link on CentOS 7

[GiangCoi Mr]

Hi Martin

I disabled selinux and firewalld on CentOS 7 and it's working well. Thanks
for your support.

Regards,
Giang

2017-06-15 9:15 GMT+07:00 Martin Schwenke <martin at meltin.net>:

> On Wed, 14 Jun 2017 13:50:21 +0700, GiangCoi Mr via samba-technical
> <samba-technical at lists.samba.org> wrote:
>
> > Hi team.
> >
> > I have a issue when I configure CTDB with Samba 4 on CenOS 7. This is my
> > configuration:
> >
> > ----------------------------------------------
> > vim /data/lock/ctdb
> >
> > CTDB_RECOVERY_LOCK=/data/lock/lockfile
> > #CIFS only
> > CTDB_PUBLIC_INTERFACE=ens32
> > CTDB_PUBLIC_ADDRESSES=/etc/ctdb/public_addresses
> > CTDB_MANAGES_SAMBA=yes
> > #CIFS only
> > #
> > CTDB_NODES=/etc/ctdb/nodes
> > -----------------------------------------------
> > vim /data/lock/nodes
> > 172.17.4.10
> > 172.17.4.20
> > -----------------------------------------------
> > vim /data/lock/public_addresses
> > 10.10.5.92/24 ens32
> > -----------------------------------------------
> >
> > I create soft link on file01 and file02
> >
> > ln -s /data/lock/nodes /etc/ctdb/nodes
> > ln -s /data/lock/public_addresses /etc/ctdb/public_addresses
> >
> > after I start ctdb, but it's not running, this is my log.ctdb
> >
> > 2017/06/14 12:27:25.690819 [ 1068]: CTDB starting on node
> > 2017/06/14 12:27:25.712588 [ 1068]: Recovery lock file set to "".
> Disabling
> > recovery lock checking
> > 2017/06/14 12:27:25.712826 [ 1068]: Failed to read nodes file
> > "/etc/ctdb/nodes"
> > 2017/06/14 12:27:25.712836 [ 1068]: Failed to load nodes file
> > "/etc/ctdb/nodes"
> > 2017/06/14 12:35:33.627848 [ 2614]: CTDB starting on node
> > 2017/06/14 12:35:33.627916 [ 2614]: Recovery lock file set to "".
> Disabling
> > recovery lock checking
> > 2017/06/14 12:35:33.628818 [ 2614]: Failed to read nodes file
> > "/etc/ctdb/nodes"
> > 2017/06/14 12:35:33.628836 [ 2614]: Failed to load nodes file
> > "/etc/ctdb/nodes"
> > 2017/06/14 13:10:46.830114 [ 2657]: CTDB starting on node
> >
> > But if I copy file from /data/lock/nodes to /etc/ctdb, it's running but
> > have not virtual IP. please help me to fix it. Thanks so much
>
> Symlinking the nodes and public_addresses files into the cluster
> filesystem works for me on RHEL 6.9 with SELinux disabled.
>
> 2 possibilities I can think of:
>
> * SELinux is enabled and is not allowing ctdbd to read the
>   configuration file from your cluster filesystem
>
> * systemd is somehow being "helpful"  ;-)
>
> peace & happiness,
> martin
>