[Gluster-users] Questions on ganesha HA and shared storage size

Soumya Koduri skoduri at redhat.com
Wed Jun 10 09:58:57 UTC 2015



On 06/10/2015 05:49 AM, Alessandro De Salvo wrote:
> Hi,
> I have enabled the full debug already, but I see nothing special. Before exporting any volume the log shows no error, even when I do a showmount (the log is attached, ganesha.log.gz). If I do the same after exporting a volume nfs-ganesha does not even start, complaining for not being able to bind the IPv6 ruota socket, but in fact there is nothing listening on IPv6, so it should not happen:
>
> tcp6       0      0 :::111                  :::*                    LISTEN      7433/rpcbind
> tcp6       0      0 :::2224                 :::*                    LISTEN      9054/ruby
> tcp6       0      0 :::22                   :::*                    LISTEN      1248/sshd
> udp6       0      0 :::111                  :::*                                7433/rpcbind
> udp6       0      0 fe80::8c2:27ff:fef2:123 :::*                                31238/ntpd
> udp6       0      0 fe80::230:48ff:fed2:123 :::*                                31238/ntpd
> udp6       0      0 fe80::230:48ff:fed2:123 :::*                                31238/ntpd
> udp6       0      0 fe80::230:48ff:fed2:123 :::*                                31238/ntpd
> udp6       0      0 ::1:123                 :::*                                31238/ntpd
> udp6       0      0 fe80::5484:7aff:fef:123 :::*                                31238/ntpd
> udp6       0      0 :::123                  :::*                                31238/ntpd
> udp6       0      0 :::824                  :::*                                7433/rpcbind
>
> The error, as shown in the attached ganesha-after-export.log.gz logfile, is the following:
>
>
> 10/06/2015 02:07:47 : epoch 55777fb5 : node2 : ganesha.nfsd-26195[main] Bind_sockets_V6 :DISP :WARN :Cannot bind RQUOTA tcp6 socket, error 98 (Address already in use)
> 10/06/2015 02:07:47 : epoch 55777fb5 : node2 : ganesha.nfsd-26195[main] Bind_sockets :DISP :FATAL :Error binding to V6 interface. Cannot continue.
> 10/06/2015 02:07:48 : epoch 55777fb5 : node2 : ganesha.nfsd-26195[main] glusterfs_unload :FSAL :DEBUG :FSAL Gluster unloaded
>

We have seen such issues with RPCBIND few times. NFS-Ganesha setup first 
disables Gluster-NFS and then brings up NFS-Ganesha service. Sometimes, 
there could be delay or issue with Gluster-NFS un-registering those 
services and when NFS-Ganesha tries to register to the same port, it 
throws this error. Please try registering Rquota to any random port 
using below config option in "/etc/ganesha/ganesha.conf"

NFS_Core_Param {
         #Use a non-privileged port for RQuota
         Rquota_Port = 4501;
}

and cleanup '/var/cache/rpcbind/' directory before the setup.

Thanks,
Soumya

>
> Thanks,
>
> 	Alessandro
>
>
>
>
>> Il giorno 09/giu/2015, alle ore 18:37, Soumya Koduri <skoduri at redhat.com> ha scritto:
>>
>>
>>
>> On 06/09/2015 09:47 PM, Alessandro De Salvo wrote:
>>> Another update: the fact that I was unable to use vol set ganesha.enable
>>> was due to another bug in the ganesha scripts. In short, they are all
>>> using the following line to get the location of the conf file:
>>>
>>> CONF=$(cat /etc/sysconfig/ganesha | grep "CONFFILE" | cut -f 2 -d "=")
>>>
>>> First of all by default in /etc/sysconfig/ganesha there is no line
>>> CONFFILE, second there is a bug in that directive, as it works if I add
>>> in /etc/sysconfig/ganesha
>>>
>>> CONFFILE=/etc/ganesha/ganesha.conf
>>>
>>> but it fails if the same is quoted
>>>
>>> CONFFILE="/etc/ganesha/ganesha.conf"
>>>
>>> It would be much better to use the following, which has a default as
>>> well:
>>>
>>> eval $(grep -F CONFFILE= /etc/sysconfig/ganesha)
>>> CONF=${CONFFILE:/etc/ganesha/ganesha.conf}
>>>
>>> I'll update the bug report.
>>> Having said this... the last issue to tackle is the real problem with
>>> the ganesha.nfsd :-(
>>
>> Thanks. Could you try changing log level to NIV_FULL_DEBUG in '/etc/sysconfig/ganesha' and check if anything gets logged in '/var/log/ganesha.log' or '/ganesha.log'.
>>
>> Thanks,
>> Soumya
>>
>>> Cheers,
>>>
>>> 	Alessandro
>>>
>>>
>>> On Tue, 2015-06-09 at 14:25 +0200, Alessandro De Salvo wrote:
>>>> OK, I can confirm that the ganesha.nsfd process is actually not
>>>> answering to the calls. Here it is what I see:
>>>>
>>>> # rpcinfo -p
>>>>     program vers proto   port  service
>>>>      100000    4   tcp    111  portmapper
>>>>      100000    3   tcp    111  portmapper
>>>>      100000    2   tcp    111  portmapper
>>>>      100000    4   udp    111  portmapper
>>>>      100000    3   udp    111  portmapper
>>>>      100000    2   udp    111  portmapper
>>>>      100024    1   udp  41594  status
>>>>      100024    1   tcp  53631  status
>>>>      100003    3   udp   2049  nfs
>>>>      100003    3   tcp   2049  nfs
>>>>      100003    4   udp   2049  nfs
>>>>      100003    4   tcp   2049  nfs
>>>>      100005    1   udp  58127  mountd
>>>>      100005    1   tcp  56301  mountd
>>>>      100005    3   udp  58127  mountd
>>>>      100005    3   tcp  56301  mountd
>>>>      100021    4   udp  46203  nlockmgr
>>>>      100021    4   tcp  41798  nlockmgr
>>>>      100011    1   udp    875  rquotad
>>>>      100011    1   tcp    875  rquotad
>>>>      100011    2   udp    875  rquotad
>>>>      100011    2   tcp    875  rquotad
>>>>
>>>> # netstat -lpn | grep ganesha
>>>> tcp6      14      0 :::2049                 :::*
>>>> LISTEN      11937/ganesha.nfsd
>>>> tcp6       0      0 :::41798                :::*
>>>> LISTEN      11937/ganesha.nfsd
>>>> tcp6       0      0 :::875                  :::*
>>>> LISTEN      11937/ganesha.nfsd
>>>> tcp6      10      0 :::56301                :::*
>>>> LISTEN      11937/ganesha.nfsd
>>>> tcp6       0      0 :::564                  :::*
>>>> LISTEN      11937/ganesha.nfsd
>>>> udp6       0      0 :::2049                 :::*
>>>> 11937/ganesha.nfsd
>>>> udp6       0      0 :::46203                :::*
>>>> 11937/ganesha.nfsd
>>>> udp6       0      0 :::58127                :::*
>>>> 11937/ganesha.nfsd
>>>> udp6       0      0 :::875                  :::*
>>>> 11937/ganesha.nfsd
>>>>
>>>> I'm attaching the strace of a showmount from a node to the other.
>>>> This machinery was working with nfs-ganesha 2.1.0, so it must be
>>>> something introduced with 2.2.0.
>>>> Cheers,
>>>>
>>>> 	Alessandro
>>>>
>>>>
>>>>
>>>> On Tue, 2015-06-09 at 15:16 +0530, Soumya Koduri wrote:
>>>>>
>>>>> On 06/09/2015 02:48 PM, Alessandro De Salvo wrote:
>>>>>> Hi,
>>>>>> OK, the problem with the VIPs not starting is due to the ganesha_mon
>>>>>> heartbeat script looking for a pid file called
>>>>>> /var/run/ganesha.nfsd.pid, while by default ganesha.nfsd v.2.2.0 is
>>>>>> creating /var/run/ganesha.pid, this needs to be corrected. The file is
>>>>>> in glusterfs-ganesha-3.7.1-1.el7.x86_64, in my case.
>>>>>> For the moment I have created a symlink in this way and it works:
>>>>>>
>>>>>> ln -s /var/run/ganesha.pid /var/run/ganesha.nfsd.pid
>>>>>>
>>>>> Thanks. Please update this as well in the bug.
>>>>>
>>>>>> So far so good, the VIPs are up and pingable, but still there is the
>>>>>> problem of the hanging showmount (i.e. hanging RPC).
>>>>>> Still, I see a lot of errors like this in /var/log/messages:
>>>>>>
>>>>>> Jun  9 11:15:20 atlas-node1 lrmd[31221]:   notice: operation_finished:
>>>>>> nfs-mon_monitor_10000:29292:stderr [ Error: Resource does not exist. ]
>>>>>>
>>>>>> While ganesha.log shows the server is not in grace:
>>>>>>
>>>>>> 09/06/2015 11:16:20 : epoch 5576aee4 : atlas-node1 :
>>>>>> ganesha.nfsd-29964[main] main :MAIN :EVENT :ganesha.nfsd Starting:
>>>>>> Ganesha Version /builddir/build/BUILD/nfs-ganesha-2.2.0/src, built at
>>>>>> May 18 2015 14:17:18 on buildhw-09.phx2.fedoraproject.org
>>>>>> <http://buildhw-09.phx2.fedoraproject.org>
>>>>>> 09/06/2015 11:16:20 : epoch 5576aee4 : atlas-node1 :
>>>>>> ganesha.nfsd-29965[main] nfs_set_param_from_conf :NFS STARTUP :EVENT
>>>>>> :Configuration file successfully parsed
>>>>>> 09/06/2015 11:16:20 : epoch 5576aee4 : atlas-node1 :
>>>>>> ganesha.nfsd-29965[main] init_server_pkgs :NFS STARTUP :EVENT
>>>>>> :Initializing ID Mapper.
>>>>>> 09/06/2015 11:16:20 : epoch 5576aee4 : atlas-node1 :
>>>>>> ganesha.nfsd-29965[main] init_server_pkgs :NFS STARTUP :EVENT :ID Mapper
>>>>>> successfully initialized.
>>>>>> 09/06/2015 11:16:20 : epoch 5576aee4 : atlas-node1 :
>>>>>> ganesha.nfsd-29965[main] main :NFS STARTUP :WARN :No export entries
>>>>>> found in configuration file !!!
>>>>>> 09/06/2015 11:16:20 : epoch 5576aee4 : atlas-node1 :
>>>>>> ganesha.nfsd-29965[main] config_errs_to_log :CONFIG :WARN :Config File
>>>>>> ((null):0): Empty configuration file
>>>>>> 09/06/2015 11:16:20 : epoch 5576aee4 : atlas-node1 :
>>>>>> ganesha.nfsd-29965[main] lower_my_caps :NFS STARTUP :EVENT
>>>>>> :CAP_SYS_RESOURCE was successfully removed for proper quota management
>>>>>> in FSAL
>>>>>> 09/06/2015 11:16:20 : epoch 5576aee4 : atlas-node1 :
>>>>>> ganesha.nfsd-29965[main] lower_my_caps :NFS STARTUP :EVENT :currenty set
>>>>>> capabilities are: =
>>>>>> cap_chown,cap_dac_override,cap_dac_read_search,cap_fowner,cap_fsetid,cap_kill,cap_setgid,cap_setuid,cap_setpcap,cap_linux_immutable,cap_net_bind_service,cap_net_broadcast,cap_net_admin,cap_net_raw,cap_ipc_lock,cap_ipc_owner,cap_sys_module,cap_sys_rawio,cap_sys_chroot,cap_sys_ptrace,cap_sys_pacct,cap_sys_admin,cap_sys_boot,cap_sys_nice,cap_sys_time,cap_sys_tty_config,cap_mknod,cap_lease,cap_audit_write,cap_audit_control,cap_setfcap+ep
>>>>>> 09/06/2015 11:16:21 : epoch 5576aee4 : atlas-node1 :
>>>>>> ganesha.nfsd-29965[main] nfs_Init_svc :DISP :CRIT :Cannot acquire
>>>>>> credentials for principal nfs
>>>>>> 09/06/2015 11:16:21 : epoch 5576aee4 : atlas-node1 :
>>>>>> ganesha.nfsd-29965[main] nfs_Init_admin_thread :NFS CB :EVENT :Admin
>>>>>> thread initialized
>>>>>> 09/06/2015 11:16:21 : epoch 5576aee4 : atlas-node1 :
>>>>>> ganesha.nfsd-29965[main] nfs4_start_grace :STATE :EVENT :NFS Server Now
>>>>>> IN GRACE, duration 60
>>>>>> 09/06/2015 11:16:21 : epoch 5576aee4 : atlas-node1 :
>>>>>> ganesha.nfsd-29965[main] nfs_rpc_cb_init_ccache :NFS STARTUP :EVENT
>>>>>> :Callback creds directory (/var/run/ganesha) already exists
>>>>>> 09/06/2015 11:16:21 : epoch 5576aee4 : atlas-node1 :
>>>>>> ganesha.nfsd-29965[main] nfs_rpc_cb_init_ccache :NFS STARTUP :WARN
>>>>>> :gssd_refresh_krb5_machine_credential failed (2:2)
>>>>>> 09/06/2015 11:16:21 : epoch 5576aee4 : atlas-node1 :
>>>>>> ganesha.nfsd-29965[main] nfs_Start_threads :THREAD :EVENT :Starting
>>>>>> delayed executor.
>>>>>> 09/06/2015 11:16:22 : epoch 5576aee4 : atlas-node1 :
>>>>>> ganesha.nfsd-29965[main] nfs_Start_threads :THREAD :EVENT :9P/TCP
>>>>>> dispatcher thread was started successfully
>>>>>> 09/06/2015 11:16:22 : epoch 5576aee4 : atlas-node1 :
>>>>>> ganesha.nfsd-29965[_9p_disp] _9p_dispatcher_thread :9P DISP :EVENT :9P
>>>>>> dispatcher started
>>>>>> 09/06/2015 11:16:22 : epoch 5576aee4 : atlas-node1 :
>>>>>> ganesha.nfsd-29965[main] nfs_Start_threads :THREAD :EVENT
>>>>>> :gsh_dbusthread was started successfully
>>>>>> 09/06/2015 11:16:22 : epoch 5576aee4 : atlas-node1 :
>>>>>> ganesha.nfsd-29965[main] nfs_Start_threads :THREAD :EVENT :admin thread
>>>>>> was started successfully
>>>>>> 09/06/2015 11:16:22 : epoch 5576aee4 : atlas-node1 :
>>>>>> ganesha.nfsd-29965[main] nfs_Start_threads :THREAD :EVENT :reaper thread
>>>>>> was started successfully
>>>>>> 09/06/2015 11:16:22 : epoch 5576aee4 : atlas-node1 :
>>>>>> ganesha.nfsd-29965[reaper] nfs_in_grace :STATE :EVENT :NFS Server Now IN
>>>>>> GRACE
>>>>>> 09/06/2015 11:16:22 : epoch 5576aee4 : atlas-node1 :
>>>>>> ganesha.nfsd-29965[main] nfs_Start_threads :THREAD :EVENT :General
>>>>>> fridge was started successfully
>>>>>> 09/06/2015 11:16:22 : epoch 5576aee4 : atlas-node1 :
>>>>>> ganesha.nfsd-29965[main] nfs_start :NFS STARTUP :EVENT
>>>>>> :-------------------------------------------------
>>>>>> 09/06/2015 11:16:22 : epoch 5576aee4 : atlas-node1 :
>>>>>> ganesha.nfsd-29965[main] nfs_start :NFS STARTUP :EVENT :             NFS
>>>>>> SERVER INITIALIZED
>>>>>> 09/06/2015 11:16:22 : epoch 5576aee4 : atlas-node1 :
>>>>>> ganesha.nfsd-29965[main] nfs_start :NFS STARTUP :EVENT
>>>>>> :-------------------------------------------------
>>>>>> 09/06/2015 11:17:22 : epoch 5576aee4 : atlas-node1 :
>>>>>> ganesha.nfsd-29965[reaper] nfs_in_grace :STATE :EVENT :NFS Server Now
>>>>>> NOT IN GRACE
>>>>>>
>>>>>>
>>>>> Please check the status of nfs-ganesha
>>>>> $service nfs-ganesha status
>>>>>
>>>>> Could you try taking a packet trace (during showmount or mount) and
>>>>> check the server responses.
>>>>>
>>>>> Thanks,
>>>>> Soumya
>>>>>
>>>>>> Cheers,
>>>>>>
>>>>>> Alessandro
>>>>>>
>>>>>>
>>>>>>> Il giorno 09/giu/2015, alle ore 10:36, Alessandro De Salvo
>>>>>>> <alessandro.desalvo at roma1.infn.it
>>>>>>> <mailto:alessandro.desalvo at roma1.infn.it>> ha scritto:
>>>>>>>
>>>>>>> Hi Soumya,
>>>>>>>
>>>>>>>> Il giorno 09/giu/2015, alle ore 08:06, Soumya Koduri
>>>>>>>> <skoduri at redhat.com <mailto:skoduri at redhat.com>> ha scritto:
>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>> On 06/09/2015 01:31 AM, Alessandro De Salvo wrote:
>>>>>>>>> OK, I found at least one of the bugs.
>>>>>>>>> The /usr/libexec/ganesha/ganesha.sh has the following lines:
>>>>>>>>>
>>>>>>>>>     if [ -e /etc/os-release ]; then
>>>>>>>>>         RHEL6_PCS_CNAME_OPTION=""
>>>>>>>>>     fi
>>>>>>>>>
>>>>>>>>> This is OK for RHEL < 7, but does not work for >= 7. I have changed
>>>>>>>>> it to the following, to make it working:
>>>>>>>>>
>>>>>>>>>     if [ -e /etc/os-release ]; then
>>>>>>>>>         eval $(grep -F "REDHAT_SUPPORT_PRODUCT=" /etc/os-release)
>>>>>>>>>         [ "$REDHAT_SUPPORT_PRODUCT" == "Fedora" ] &&
>>>>>>>>> RHEL6_PCS_CNAME_OPTION=""
>>>>>>>>>     fi
>>>>>>>>>
>>>>>>>> Oh..Thanks for the fix. Could you please file a bug for the same (and
>>>>>>>> probably submit your fix as well). We shall have it corrected.
>>>>>>>
>>>>>>> Just did it,https://bugzilla.redhat.com/show_bug.cgi?id=1229601
>>>>>>>
>>>>>>>>
>>>>>>>>> Apart from that, the VIP_<node> I was using were wrong, and I should
>>>>>>>>> have converted all the “-“ to underscores, maybe this could be
>>>>>>>>> mentioned in the documentation when you will have it ready.
>>>>>>>>> Now, the cluster starts, but the VIPs apparently not:
>>>>>>>>>
>>>>>>>> Sure. Thanks again for pointing it out. We shall make a note of it.
>>>>>>>>
>>>>>>>>> Online: [ atlas-node1 atlas-node2 ]
>>>>>>>>>
>>>>>>>>> Full list of resources:
>>>>>>>>>
>>>>>>>>> Clone Set: nfs-mon-clone [nfs-mon]
>>>>>>>>>      Started: [ atlas-node1 atlas-node2 ]
>>>>>>>>> Clone Set: nfs-grace-clone [nfs-grace]
>>>>>>>>>      Started: [ atlas-node1 atlas-node2 ]
>>>>>>>>> atlas-node1-cluster_ip-1  (ocf::heartbeat:IPaddr):        Stopped
>>>>>>>>> atlas-node1-trigger_ip-1  (ocf::heartbeat:Dummy): Started atlas-node1
>>>>>>>>> atlas-node2-cluster_ip-1  (ocf::heartbeat:IPaddr):        Stopped
>>>>>>>>> atlas-node2-trigger_ip-1  (ocf::heartbeat:Dummy): Started atlas-node2
>>>>>>>>> atlas-node1-dead_ip-1     (ocf::heartbeat:Dummy): Started atlas-node1
>>>>>>>>> atlas-node2-dead_ip-1     (ocf::heartbeat:Dummy): Started atlas-node2
>>>>>>>>>
>>>>>>>>> PCSD Status:
>>>>>>>>>   atlas-node1: Online
>>>>>>>>>   atlas-node2: Online
>>>>>>>>>
>>>>>>>>> Daemon Status:
>>>>>>>>>   corosync: active/disabled
>>>>>>>>>   pacemaker: active/disabled
>>>>>>>>>   pcsd: active/enabled
>>>>>>>>>
>>>>>>>>>
>>>>>>>> Here corosync and pacemaker shows 'disabled' state. Can you check the
>>>>>>>> status of their services. They should be running prior to cluster
>>>>>>>> creation. We need to include that step in document as well.
>>>>>>>
>>>>>>> Ah, OK, you’re right, I have added it to my puppet modules (we install
>>>>>>> and configure ganesha via puppet, I’ll put the module on puppetforge
>>>>>>> soon, in case anyone is interested).
>>>>>>>
>>>>>>>>
>>>>>>>>> But the issue that is puzzling me more is the following:
>>>>>>>>>
>>>>>>>>> # showmount -e localhost
>>>>>>>>> rpc mount export: RPC: Timed out
>>>>>>>>>
>>>>>>>>> And when I try to enable the ganesha exports on a volume I get this
>>>>>>>>> error:
>>>>>>>>>
>>>>>>>>> # gluster volume set atlas-home-01 ganesha.enable on
>>>>>>>>> volume set: failed: Failed to create NFS-Ganesha export config file.
>>>>>>>>>
>>>>>>>>> But I see the file created in /etc/ganesha/exports/*.conf
>>>>>>>>> Still, showmount hangs and times out.
>>>>>>>>> Any help?
>>>>>>>>> Thanks,
>>>>>>>>>
>>>>>>>> Hmm that's strange. Sometimes, in case if there was no proper cleanup
>>>>>>>> done while trying to re-create the cluster, we have seen such issues.
>>>>>>>>
>>>>>>>> https://bugzilla.redhat.com/show_bug.cgi?id=1227709
>>>>>>>>
>>>>>>>> http://review.gluster.org/#/c/11093/
>>>>>>>>
>>>>>>>> Can you please unexport all the volumes, teardown the cluster using
>>>>>>>> 'gluster vol set <volname> ganesha.enable off’
>>>>>>>
>>>>>>> OK:
>>>>>>>
>>>>>>> # gluster vol set atlas-home-01 ganesha.enable off
>>>>>>> volume set: failed: ganesha.enable is already 'off'.
>>>>>>>
>>>>>>> # gluster vol set atlas-data-01 ganesha.enable off
>>>>>>> volume set: failed: ganesha.enable is already 'off'.
>>>>>>>
>>>>>>>
>>>>>>>> 'gluster ganesha disable' command.
>>>>>>>
>>>>>>> I’m assuming you wanted to write nfs-ganesha instead?
>>>>>>>
>>>>>>> # gluster nfs-ganesha disable
>>>>>>> ganesha enable : success
>>>>>>>
>>>>>>>
>>>>>>> A side note (not really important): it’s strange that when I do a
>>>>>>> disable the message is “ganesha enable” :-)
>>>>>>>
>>>>>>>>
>>>>>>>> Verify if the following files have been deleted on all the nodes-
>>>>>>>> '/etc/cluster/cluster.conf’
>>>>>>>
>>>>>>> this file is not present at all, I think it’s not needed in CentOS 7
>>>>>>>
>>>>>>>> '/etc/ganesha/ganesha.conf’,
>>>>>>>
>>>>>>> it’s still there, but empty, and I guess it should be OK, right?
>>>>>>>
>>>>>>>> '/etc/ganesha/exports/*’
>>>>>>>
>>>>>>> no more files there
>>>>>>>
>>>>>>>> '/var/lib/pacemaker/cib’
>>>>>>>
>>>>>>> it’s empty
>>>>>>>
>>>>>>>>
>>>>>>>> Verify if the ganesha service is stopped on all the nodes.
>>>>>>>
>>>>>>> nope, it’s still running, I will stop it.
>>>>>>>
>>>>>>>>
>>>>>>>> start/restart the services - corosync, pcs.
>>>>>>>
>>>>>>> In the node where I issued the nfs-ganesha disable there is no more
>>>>>>> any /etc/corosync/corosync.conf so corosync won’t start. The other
>>>>>>> node instead still has the file, it’s strange.
>>>>>>>
>>>>>>>>
>>>>>>>> And re-try the HA cluster creation
>>>>>>>> 'gluster ganesha enable’
>>>>>>>
>>>>>>> This time (repeated twice) it did not work at all:
>>>>>>>
>>>>>>> # pcs status
>>>>>>> Cluster name: ATLAS_GANESHA_01
>>>>>>> Last updated: Tue Jun  9 10:13:43 2015
>>>>>>> Last change: Tue Jun  9 10:13:22 2015
>>>>>>> Stack: corosync
>>>>>>> Current DC: atlas-node1 (1) - partition with quorum
>>>>>>> Version: 1.1.12-a14efad
>>>>>>> 2 Nodes configured
>>>>>>> 6 Resources configured
>>>>>>>
>>>>>>>
>>>>>>> Online: [ atlas-node1 atlas-node2 ]
>>>>>>>
>>>>>>> Full list of resources:
>>>>>>>
>>>>>>> Clone Set: nfs-mon-clone [nfs-mon]
>>>>>>>      Started: [ atlas-node1 atlas-node2 ]
>>>>>>> Clone Set: nfs-grace-clone [nfs-grace]
>>>>>>>      Started: [ atlas-node1 atlas-node2 ]
>>>>>>> atlas-node2-dead_ip-1     (ocf::heartbeat:Dummy): Started atlas-node1
>>>>>>> atlas-node1-dead_ip-1     (ocf::heartbeat:Dummy): Started atlas-node2
>>>>>>>
>>>>>>> PCSD Status:
>>>>>>>   atlas-node1: Online
>>>>>>>   atlas-node2: Online
>>>>>>>
>>>>>>> Daemon Status:
>>>>>>>   corosync: active/enabled
>>>>>>>   pacemaker: active/enabled
>>>>>>>   pcsd: active/enabled
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>> I tried then "pcs cluster destroy" on both nodes, and then again
>>>>>>> nfs-ganesha enable, but now I’m back to the old problem:
>>>>>>>
>>>>>>> # pcs status
>>>>>>> Cluster name: ATLAS_GANESHA_01
>>>>>>> Last updated: Tue Jun  9 10:22:27 2015
>>>>>>> Last change: Tue Jun  9 10:17:00 2015
>>>>>>> Stack: corosync
>>>>>>> Current DC: atlas-node2 (2) - partition with quorum
>>>>>>> Version: 1.1.12-a14efad
>>>>>>> 2 Nodes configured
>>>>>>> 10 Resources configured
>>>>>>>
>>>>>>>
>>>>>>> Online: [ atlas-node1 atlas-node2 ]
>>>>>>>
>>>>>>> Full list of resources:
>>>>>>>
>>>>>>> Clone Set: nfs-mon-clone [nfs-mon]
>>>>>>>      Started: [ atlas-node1 atlas-node2 ]
>>>>>>> Clone Set: nfs-grace-clone [nfs-grace]
>>>>>>>      Started: [ atlas-node1 atlas-node2 ]
>>>>>>> atlas-node1-cluster_ip-1       (ocf::heartbeat:IPaddr):        Stopped
>>>>>>> atlas-node1-trigger_ip-1       (ocf::heartbeat:Dummy): Started atlas-node1
>>>>>>> atlas-node2-cluster_ip-1       (ocf::heartbeat:IPaddr):        Stopped
>>>>>>> atlas-node2-trigger_ip-1       (ocf::heartbeat:Dummy): Started atlas-node2
>>>>>>> atlas-node1-dead_ip-1  (ocf::heartbeat:Dummy): Started atlas-node1
>>>>>>> atlas-node2-dead_ip-1  (ocf::heartbeat:Dummy): Started atlas-node2
>>>>>>>
>>>>>>> PCSD Status:
>>>>>>>   atlas-node1: Online
>>>>>>>   atlas-node2: Online
>>>>>>>
>>>>>>> Daemon Status:
>>>>>>>   corosync: active/enabled
>>>>>>>   pacemaker: active/enabled
>>>>>>>   pcsd: active/enabled
>>>>>>>
>>>>>>>
>>>>>>> Cheers,
>>>>>>>
>>>>>>> Alessandro
>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>> Thanks,
>>>>>>>> Soumya
>>>>>>>>
>>>>>>>>> Alessandro
>>>>>>>>>
>>>>>>>>>> Il giorno 08/giu/2015, alle ore 20:00, Alessandro De Salvo
>>>>>>>>>> <Alessandro.DeSalvo at roma1.infn.it
>>>>>>>>>> <mailto:Alessandro.DeSalvo at roma1.infn.it>> ha scritto:
>>>>>>>>>>
>>>>>>>>>> Hi,
>>>>>>>>>> indeed, it does not work :-)
>>>>>>>>>> OK, this is what I did, with 2 machines, running CentOS 7.1,
>>>>>>>>>> Glusterfs 3.7.1 and nfs-ganesha 2.2.0:
>>>>>>>>>>
>>>>>>>>>> 1) ensured that the machines are able to resolve their IPs (but
>>>>>>>>>> this was already true since they were in the DNS);
>>>>>>>>>> 2) disabled NetworkManager and enabled network on both machines;
>>>>>>>>>> 3) created a gluster shared volume 'gluster_shared_storage' and
>>>>>>>>>> mounted it on '/run/gluster/shared_storage' on all the cluster
>>>>>>>>>> nodes using glusterfs native mount (on CentOS 7.1 there is a link
>>>>>>>>>> by default /var/run -> ../run)
>>>>>>>>>> 4) created an empty /etc/ganesha/ganesha.conf;
>>>>>>>>>> 5) installed pacemaker pcs resource-agents corosync on all cluster
>>>>>>>>>> machines;
>>>>>>>>>> 6) set the ‘hacluster’ user the same password on all machines;
>>>>>>>>>> 7) pcs cluster auth <hostname> -u hacluster -p <pass> on all the
>>>>>>>>>> nodes (on both nodes I issued the commands for both nodes)
>>>>>>>>>> 8) IPv6 is configured by default on all nodes, although the
>>>>>>>>>> infrastructure is not ready for IPv6
>>>>>>>>>> 9) enabled pcsd and started it on all nodes
>>>>>>>>>> 10) populated /etc/ganesha/ganesha-ha.conf with the following
>>>>>>>>>> contents, one per machine:
>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>> ===> atlas-node1
>>>>>>>>>> # Name of the HA cluster created.
>>>>>>>>>> HA_NAME="ATLAS_GANESHA_01"
>>>>>>>>>> # The server from which you intend to mount
>>>>>>>>>> # the shared volume.
>>>>>>>>>> HA_VOL_SERVER=“atlas-node1"
>>>>>>>>>> # The subset of nodes of the Gluster Trusted Pool
>>>>>>>>>> # that forms the ganesha HA cluster. IP/Hostname
>>>>>>>>>> # is specified.
>>>>>>>>>> HA_CLUSTER_NODES=“atlas-node1,atlas-node2"
>>>>>>>>>> # Virtual IPs of each of the nodes specified above.
>>>>>>>>>> VIP_atlas-node1=“x.x.x.1"
>>>>>>>>>> VIP_atlas-node2=“x.x.x.2"
>>>>>>>>>>
>>>>>>>>>> ===> atlas-node2
>>>>>>>>>> # Name of the HA cluster created.
>>>>>>>>>> HA_NAME="ATLAS_GANESHA_01"
>>>>>>>>>> # The server from which you intend to mount
>>>>>>>>>> # the shared volume.
>>>>>>>>>> HA_VOL_SERVER=“atlas-node2"
>>>>>>>>>> # The subset of nodes of the Gluster Trusted Pool
>>>>>>>>>> # that forms the ganesha HA cluster. IP/Hostname
>>>>>>>>>> # is specified.
>>>>>>>>>> HA_CLUSTER_NODES=“atlas-node1,atlas-node2"
>>>>>>>>>> # Virtual IPs of each of the nodes specified above.
>>>>>>>>>> VIP_atlas-node1=“x.x.x.1"
>>>>>>>>>> VIP_atlas-node2=“x.x.x.2”
>>>>>>>>>>
>>>>>>>>>> 11) issued gluster nfs-ganesha enable, but it fails with a cryptic
>>>>>>>>>> message:
>>>>>>>>>>
>>>>>>>>>> # gluster nfs-ganesha enable
>>>>>>>>>> Enabling NFS-Ganesha requires Gluster-NFS to be disabled across the
>>>>>>>>>> trusted pool. Do you still want to continue? (y/n) y
>>>>>>>>>> nfs-ganesha: failed: Failed to set up HA config for NFS-Ganesha.
>>>>>>>>>> Please check the log file for details
>>>>>>>>>>
>>>>>>>>>> Looking at the logs I found nothing really special but this:
>>>>>>>>>>
>>>>>>>>>> ==> /var/log/glusterfs/etc-glusterfs-glusterd.vol.log <==
>>>>>>>>>> [2015-06-08 17:57:15.672844] I [MSGID: 106132]
>>>>>>>>>> [glusterd-proc-mgmt.c:83:glusterd_proc_stop] 0-management: nfs
>>>>>>>>>> already stopped
>>>>>>>>>> [2015-06-08 17:57:15.675395] I
>>>>>>>>>> [glusterd-ganesha.c:386:check_host_list] 0-management: ganesha host
>>>>>>>>>> found Hostname is atlas-node2
>>>>>>>>>> [2015-06-08 17:57:15.720692] I
>>>>>>>>>> [glusterd-ganesha.c:386:check_host_list] 0-management: ganesha host
>>>>>>>>>> found Hostname is atlas-node2
>>>>>>>>>> [2015-06-08 17:57:15.721161] I
>>>>>>>>>> [glusterd-ganesha.c:335:is_ganesha_host] 0-management: ganesha host
>>>>>>>>>> found Hostname is atlas-node2
>>>>>>>>>> [2015-06-08 17:57:16.633048] E
>>>>>>>>>> [glusterd-ganesha.c:254:glusterd_op_set_ganesha] 0-management:
>>>>>>>>>> Initial NFS-Ganesha set up failed
>>>>>>>>>> [2015-06-08 17:57:16.641563] E
>>>>>>>>>> [glusterd-syncop.c:1396:gd_commit_op_phase] 0-management: Commit of
>>>>>>>>>> operation 'Volume (null)' failed on localhost : Failed to set up HA
>>>>>>>>>> config for NFS-Ganesha. Please check the log file for details
>>>>>>>>>>
>>>>>>>>>> ==> /var/log/glusterfs/cmd_history.log <==
>>>>>>>>>> [2015-06-08 17:57:16.643615]  : nfs-ganesha enable : FAILED :
>>>>>>>>>> Failed to set up HA config for NFS-Ganesha. Please check the log
>>>>>>>>>> file for details
>>>>>>>>>>
>>>>>>>>>> ==> /var/log/glusterfs/cli.log <==
>>>>>>>>>> [2015-06-08 17:57:16.643839] I [input.c:36:cli_batch] 0-: Exiting
>>>>>>>>>> with: -1
>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>> Also, pcs seems to be fine for the auth part, although it obviously
>>>>>>>>>> tells me the cluster is not running.
>>>>>>>>>>
>>>>>>>>>> I, [2015-06-08T19:57:16.305323 #7223]  INFO -- : Running:
>>>>>>>>>> /usr/sbin/corosync-cmapctl totem.cluster_name
>>>>>>>>>> I, [2015-06-08T19:57:16.345457 #7223]  INFO -- : Running:
>>>>>>>>>> /usr/sbin/pcs cluster token-nodes
>>>>>>>>>> ::ffff:141.108.38.46 - - [08/Jun/2015 19:57:16] "GET
>>>>>>>>>> /remote/check_auth HTTP/1.1" 200 68 0.1919
>>>>>>>>>> ::ffff:141.108.38.46 - - [08/Jun/2015 19:57:16] "GET
>>>>>>>>>> /remote/check_auth HTTP/1.1" 200 68 0.1920
>>>>>>>>>> atlas-node1.mydomain - - [08/Jun/2015:19:57:16 CEST] "GET
>>>>>>>>>> /remote/check_auth HTTP/1.1" 200 68
>>>>>>>>>> - -> /remote/check_auth
>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>> What am I doing wrong?
>>>>>>>>>> Thanks,
>>>>>>>>>>
>>>>>>>>>> Alessandro
>>>>>>>>>>
>>>>>>>>>>> Il giorno 08/giu/2015, alle ore 19:30, Soumya Koduri
>>>>>>>>>>> <skoduri at redhat.com <mailto:skoduri at redhat.com>> ha scritto:
>>>>>>>>>>>
>>>>>>>>>>>
>>>>>>>>>>>
>>>>>>>>>>>
>>>>>>>>>>> On 06/08/2015 08:20 PM, Alessandro De Salvo wrote:
>>>>>>>>>>>> Sorry, just another question:
>>>>>>>>>>>>
>>>>>>>>>>>> - in my installation of gluster 3.7.1 the command gluster
>>>>>>>>>>>> features.ganesha enable does not work:
>>>>>>>>>>>>
>>>>>>>>>>>> # gluster features.ganesha enable
>>>>>>>>>>>> unrecognized word: features.ganesha (position 0)
>>>>>>>>>>>>
>>>>>>>>>>>> Which version has full support for it?
>>>>>>>>>>>
>>>>>>>>>>> Sorry. This option has recently been changed. It is now
>>>>>>>>>>>
>>>>>>>>>>> $ gluster nfs-ganesha enable
>>>>>>>>>>>
>>>>>>>>>>>
>>>>>>>>>>>>
>>>>>>>>>>>> - in the documentation the ccs and cman packages are required,
>>>>>>>>>>>> but they seems not to be available anymore on CentOS 7 and
>>>>>>>>>>>> similar, I guess they are not really required anymore, as pcs
>>>>>>>>>>>> should do the full job
>>>>>>>>>>>>
>>>>>>>>>>>> Thanks,
>>>>>>>>>>>>
>>>>>>>>>>>> Alessandro
>>>>>>>>>>>
>>>>>>>>>>> Looks like so from http://clusterlabs.org/quickstart-redhat.html.
>>>>>>>>>>> Let us know if it doesn't work.
>>>>>>>>>>>
>>>>>>>>>>> Thanks,
>>>>>>>>>>> Soumya
>>>>>>>>>>>
>>>>>>>>>>>>
>>>>>>>>>>>>> Il giorno 08/giu/2015, alle ore 15:09, Alessandro De Salvo
>>>>>>>>>>>>> <alessandro.desalvo at roma1.infn.it
>>>>>>>>>>>>> <mailto:alessandro.desalvo at roma1.infn.it>> ha scritto:
>>>>>>>>>>>>>
>>>>>>>>>>>>> Great, many thanks Soumya!
>>>>>>>>>>>>> Cheers,
>>>>>>>>>>>>>
>>>>>>>>>>>>> Alessandro
>>>>>>>>>>>>>
>>>>>>>>>>>>>> Il giorno 08/giu/2015, alle ore 13:53, Soumya Koduri
>>>>>>>>>>>>>> <skoduri at redhat.com <mailto:skoduri at redhat.com>> ha scritto:
>>>>>>>>>>>>>>
>>>>>>>>>>>>>> Hi,
>>>>>>>>>>>>>>
>>>>>>>>>>>>>> Please find the slides of the demo video at [1]
>>>>>>>>>>>>>>
>>>>>>>>>>>>>> We recommend to have a distributed replica volume as a shared
>>>>>>>>>>>>>> volume for better data-availability.
>>>>>>>>>>>>>>
>>>>>>>>>>>>>> Size of the volume depends on the workload you may have. Since
>>>>>>>>>>>>>> it is used to maintain states of NLM/NFSv4 clients, you may
>>>>>>>>>>>>>> calculate the size of the volume to be minimum of aggregate of
>>>>>>>>>>>>>> (typical_size_of'/var/lib/nfs'_directory +
>>>>>>>>>>>>>> ~4k*no_of_clients_connected_to_each_of_the_nfs_servers_at_any_point)
>>>>>>>>>>>>>>
>>>>>>>>>>>>>> We shall document about this feature sooner in the gluster docs
>>>>>>>>>>>>>> as well.
>>>>>>>>>>>>>>
>>>>>>>>>>>>>> Thanks,
>>>>>>>>>>>>>> Soumya
>>>>>>>>>>>>>>
>>>>>>>>>>>>>> [1] - http://www.slideshare.net/SoumyaKoduri/high-49117846
>>>>>>>>>>>>>>
>>>>>>>>>>>>>> On 06/08/2015 04:34 PM, Alessandro De Salvo wrote:
>>>>>>>>>>>>>>> Hi,
>>>>>>>>>>>>>>> I have seen the demo video on ganesha HA,
>>>>>>>>>>>>>>> https://www.youtube.com/watch?v=Z4mvTQC-efM
>>>>>>>>>>>>>>> However there is no advice on the appropriate size of the
>>>>>>>>>>>>>>> shared volume. How is it really used, and what should be a
>>>>>>>>>>>>>>> reasonable size for it?
>>>>>>>>>>>>>>> Also, are the slides from the video available somewhere, as
>>>>>>>>>>>>>>> well as a documentation on all this? I did not manage to find
>>>>>>>>>>>>>>> them.
>>>>>>>>>>>>>>> Thanks,
>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>> Alessandro
>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>> _______________________________________________
>>>>>>>>>>>>>>> Gluster-users mailing list
>>>>>>>>>>>>>>> Gluster-users at gluster.org <mailto:Gluster-users at gluster.org>
>>>>>>>>>>>>>>> http://www.gluster.org/mailman/listinfo/gluster-users
>>>>>>>>>>>>>>>
>>>>>>>>>>>>>
>>>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>> _______________________________________________
>>>>>>>>>> Gluster-users mailing list
>>>>>>>>>> Gluster-users at gluster.org <mailto:Gluster-users at gluster.org>
>>>>>>>>>> http://www.gluster.org/mailman/listinfo/gluster-users
>>>>>>>>>
>>>>>>>
>>>>>>> _______________________________________________
>>>>>>> Gluster-users mailing list
>>>>>>> Gluster-users at gluster.org <mailto:Gluster-users at gluster.org>
>>>>>>> http://www.gluster.org/mailman/listinfo/gluster-users
>>>>>>
>>>>
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