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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nfsmount.conf

NFSMOUNT.CONF(5)						File Formats Manual						  NFSMOUNT.CONF(5)

NAME

       nfsmount.conf - Configuration file for NFS mounts

SYNOPSIS

       Configuration file for NFS mounts that allows options to be set globally, per server or per mount point.

DESCRIPTION

       The  configuration  file  is  made  up  of multiple sections followed by variables associated with that section.  A section is defined by a
       string enclosed by [ and ] branches.  Variables are assignment statements that assign values to particular variables using the =  operator,
       as in Proto=Tcp.  The variables that can be assigned are exactly the set of NFS specific mount options listed in nfs(5).

       Sections are broken up into three basic categories: Global options, Server options and Mount Point options.

       [ NFSMount_Global_Options ] - This statically named section defines all of the global mount options that can be applied to every NFS mount.

       [  Server  "Server_Name"  ]  -  This  section  defines  all the mount options that should be used on mounts to a particular NFS server. The
	      "Server_Name" strings needs to be surrounded by '"' and be an exact match of the server name used in the mount command.

       [ MountPoint "Mount_Point" ] - This section defines all the  mount  options  that  should  be  used  on	a  particular  mount  point.   The
	      "Mount_Point" string needs to be surrounded by '"' and be an exact match of the mount point used in the mount command.

EXAMPLES

       These are some example lines of how sections and variables are defined in the configuration file.

       [ NFSMount_Global_Options ]
	   Proto=Tcp

	      The TCP/IPv4 protocol will be used on every NFS mount.

       [ Server "nfsserver.foo.com" ]
	   rsize=32k
	   wsize=32k
	   proto=udp6

	      A 32k (32768 bytes) block size will be used as the read and write size on all mounts to the 'nfsserver.foo.com' server.  UDP/IPv6 is
	      the protocol to be used.

	[ MountPoint "/export/home" ]
	   Background=True

	      All mounts to the '/export/home' export will be performed in the background (i.e. done asynchronously).

FILES

       /etc/nfsmount.conf
		 Default NFS mount configuration file

SEE ALSO

       nfs(5), mount(8),

								  9 October 2012						  NFSMOUNT.CONF(5)

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nfsmount.conf