NFS active/active cluster with gluster and NFS-ganesha, I can create dirs, but not files! Post: 303045800

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Top Forums UNIX for Advanced & Expert Users NFS active/active cluster with gluster and NFS-ganesha, I can create dirs, but not files! Post 303045800 by Linusolaradm1 on Monday 13th of April 2020 05:52:02 PM

04-13-2020

Registered User

NFS active/active cluster with gluster and NFS-ganesha, I can create dirs, but not files!

Following this fantastic guide I finally setup an active working active/active nfs4 cluster.
The setup is not too difficult: two servers with ganesha+glusterfs other two with haproxy and keepalived.
The cluster works fine, from one client I have mount the nfs share called "nfshare" without problem

Code:

mount -t nfs4

nfsserver:/nfsshare on /mnt type nfs4 (rw,relatime,vers=4.2,rsize=1048576,wsize=1048576,namlen=255,hard,proto=tcp,timeo=600,retrans=2,sec=sys,clientaddr=10.2.0.170,local_lock=none,addr=10.2.0.7)

I have created some dirs on mnt and works perfect(there are replicated on nfsgluster servers). I have also rebooted for testing the nfs server one or two, and after a very little downtime (2 seconds) the connection is up and working.
The problem is..mkdir works, but every file operation(dd,cp,touch) fails(stuck,freeze until ctrl+c is pressed).

On both the nfs servers and keepalived servers there is no problem with selinux

Code:

grep -i denied /var/log/audit/audit.log

What can be?Why mkdir works and file operation not?

--- Post updated at 05:52 PM ---

Solution found, ganesha was misconfigured, I have forgot to add the ports for services.

Linusolaradm1

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mount.nfs

MOUNT.NFS(8)                                                  System Manager's Manual                                                 MOUNT.NFS(8)

NAME

       mount.nfs, mount.nfs4 - mount a Network File System

SYNOPSIS

       mount.nfs remotetarget dir [-rvVwfnsh ] [-o options]

DESCRIPTION

       mount.nfs is a part of nfs(5) utilities package, which provides NFS client functionality.

       mount.nfs  is  meant to be used by the mount(8) command for mounting NFS shares. This subcommand, however, can also be used as a standalone
       command with limited functionality.

       remotetarget is a server share usually in the form of servername:/path/to/share.  dir is the directory on which the file system  is  to  be
       mounted.

       Under  Linux  2.6.32  and  later  kernel  versions, mount.nfs can mount all NFS file system versions.  Under earlier Linux kernel versions,
       mount.nfs4 must be used for mounting NFSv4 file systems while mount.nfs must be used for NFSv3 and v2.

OPTIONS

       -r     Mount file system readonly.

       -v     Be verbose.

       -V     Print version.

       -w     Mount file system read-write.

       -f     Fake mount. Don't actually call the mount system call.

       -n     Do not update /etc/mtab.  By default, an entry is created in /etc/mtab for every mounted file system. Use this option to skip making
              an entry.

       -s     Tolerate sloppy mount options rather than fail.

       -h     Print help message.

       nfsoptions
              Refer to nfs(5) or mount(8) manual pages.

NOTE

       For further information please refer nfs(5) and mount(8) manual pages.

FILES

       /etc/fstab        file system table

       /etc/mtab         table of mounted file systems

SEE ALSO

       nfs(5), mount(8),

AUTHOR

       Amit Gud <agud@redhat.com>

                                                                    5 Jun 2006                                                        MOUNT.NFS(8)

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mount.nfs