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.glusterfs

GlusterFS(8)							   Gluster Inc. 						      GlusterFS(8)

NAME

       mount.glusterfs - script to mount native GlusterFS volume

SYNOPSIS

       mount -t glusterfs [-o <options>] <volumeserver>:<volumeid> <mountpoint>

       mount -t glusterfs
	      [-o <options>] <path/to/volumefile> <mountpoint>

DESCRIPTION

       This tool is part of glusterfs(8) package, which is used to mount using GlusterFS native binary.

       mount.glusterfs	 is  meant  to be used by the mount(8) command for mounting native GlusterFS client. This subcommand, however, can also be
       used as a standalone command with limited functionality.

OPTIONS

   Basic options
       log-file=LOG-FILE
	      File to use for logging [default:/var/log/glusterfs/glusterfs.log]

       log-level=LOG-LEVEL
	      Logging severity.  Valid options are TRACE, DEBUG, WARNING, ERROR, CRITICAL INFO and NONE [default: INFO]

       ro     Mount the filesystem read-only

   Advanced options
       volfile-id=KEY
	      Volume key or name of the volume file to be fetched from server

       transport=TRANSPORT-TYPE
	      Transport type to get volume file from server [default: socket]

       volume-name=VOLUME-NAME
	      Volume name to be used for MOUNT-POINT [default: top most volume in VOLUME-FILE]

       direct-io-mode=disable
	      Disable direct I/O mode in fuse kernel module

       FILES

       /etc/fstab
	      A typical GlusterFS entry in /etc/fstab looks like below

	      server1.gluster.com:mirror  /mnt/mirror  glusterfs  log-file=/var/log/mirror.vol,ro,defaults   0	0

       /etc/mtab
	      An example entry of a GlusterFS mountpoint in /etc/mtab looks like below

	      mirror.vol /mnt/glusterfs fuse.glusterfs rw,allow_other,default_permissions,max_read=131072 0 0

SEE ALSO

       glusterfs(8), mount(8), gluster(8)

COPYRIGHT

       Copyright(c) 2006-2011	Gluster, Inc.	<http://www.gluster.com>

18 March 2010							Cluster Filesystem						      GlusterFS(8)

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mount.glusterfs