Server does not export
by vaf0001＠uah.edu
Folks,
We have been hit with a recent Fedora Linux kernel bug rendering the built-in NFS server unstable. After some web search I found this userspace replacement. Unfortunately, I am unable to get the server to do anything useful, like export a filesystem. I've created the following test config file:
EXPORT
{
Export_Id = 10;
Path = /srv/nfs/home;
Pseudo = /home;
Access_Type = RW;
Squash = no_root_squash;
}
LOG {
Default_Log_Level = DEBUG;
Facility {
name = FILE;
destination = "/var/log/ganesha/ganesha.log";
enable = active;
}
}
The service (called nfs-ganesha.service on Fedora) starts just fine and I see no errors of any kind in the log file. But /srv/nfs/home is not exported. I've checked with "ganesha_mgr show exports", which produces the following output:
Exports:
Id, path, nfsv3, mnt, nlm4, rquota,nfsv40, nfsv41, nfsv42, 9p, last
0, /, 0, 0, 0, 0, 0, 0, 0, 0, Sun Feb 21 12:51:38 2021, 642993774 nsecs
On a client, I cannot mount "servername:/home" (no such directory), only "servername:/" (which is empty). Can anyone provide some guidance?
3 years, 9 months
NFSv3 active-passive cluster with FSAL CephFS and keepalived - Stale file handle after restart and also failover
by rainer.stumbaum＠gmail.com
Hi,
I configured five unrestriced LXC containers on Proxmox and also set lxc.seccomp.profile to empty.
This is my configuration:
root@nfsshares-a:~# egrep -v '^[[:blank:]]*#|^[[:blank:]]*$' /etc/ganesha/ganesha.conf
NFS_CORE_PARAM
{
Enable_NLM = false;
Enable_RQUOTA = false;
Protocols = 3,4;
mount_path_pseudo = true;
}
NFS_KRB5
{
Active_krb5 = false;
}
NFSv4
{
RecoveryBackend = rados_ng;
Minor_Versions = 1,2;
}
MDCACHE {
Dir_Chunk = 0;
}
EXPORT_DEFAULTS {
SecType = "sys";
Squash = No_Root_Squash;
Attr_Expiration_Time = 0;
}
CEPH
{
}
RADOS_KV
{
UserId = "ganesharecov";
}
RADOS_URLS
{
UserId = "ganeshaurls";
watch_url = "rados://nfs-ganesha/ganesha-namespace/conf-nfsshares";
}
%url rados://nfs-ganesha/ganesha-namespace/conf-nfsshares
root@nfsshares-a:~#
And this is an example export. The other exports just have different clients for the other paths.
root@proxmox07:~# cat /tmp/export-1
EXPORT {
FSAL {
secret_access_key = "AQDm7eFfJWvhIBAAuI++d0SNkdylNkMx5t/N8w==";
user_id = "ganesha";
name = "CEPH";
filesystem = "cephfs";
}
CLIENT {
clients = 10.20.56.254;
squash = "no_root_squash";
access_type = "RW";
}
pseudo = "/";
squash = "no_root_squash";
access_type = "NONE";
path = "/";
export_id = 1;
transports = "TCP";
protocols = 3, 4;
}
Mounting filesystems works fine, but as soon as I restart the nfs-ganesha daemon I get a stale file handle on the client.
Looking at
root@nfsshares-a:~# ganesha-rados-grace --userid ganesharecov --pool nfs-ganesha --ns namespace-ganesha dump
cur=1 rec=0
======================================================
nfsshares-a E
nfsshares-b E
nfsshares-c E
nfsshares-d E
nfsshares-e E
root@nfsshares-a:~#
The nodes never loose the E state.
These are the permissions on ceph:
root@proxmox07:~# cat /etc/pve/priv/ceph.client.ganesha*.keyring
[client.ganesha]
key = <removed>
caps mds = "allow r path=/, allow rw path=/vol"
caps mon = "allow r"
caps osd = "allow class-read object_prefix rbd_children, allow rw pool=cephfs_data, allow rw pool=nfs-ganesha"
[client.ganesharecov]
key = <removed>
caps mon = "allow r"
caps osd = "allow class-read object_prefix rbd_children, allow rw pool=nfs-ganesha"
[client.ganeshaurls]
key = <removed>
caps mon = "allow r"
caps osd = "allow class-read object_prefix rbd_children, allow rw pool=nfs-ganesha"
root@proxmox07:~#
Which service account is used to remove the E state on ceph? Do I have a permission problem?
Best regards
Rainer
Log from a restart:
----
21/01/2021 10:48:08 : epoch 60095be8 : nfsshares-a : ganesha.nfsd-239[main] main :MAIN :EVENT :ganesha.nfsd Starting: Ganesha Version 3.4
21/01/2021 10:48:08 : epoch 60095be8 : nfsshares-a : ganesha.nfsd-246[main] nfs_set_param_from_conf :NFS STARTUP :EVENT :Configuration file successfully parsed
21/01/2021 10:48:08 : epoch 60095be8 : nfsshares-a : ganesha.nfsd-246[main] init_server_pkgs :NFS STARTUP :EVENT :Initializing ID Mapper.
21/01/2021 10:48:08 : epoch 60095be8 : nfsshares-a : ganesha.nfsd-246[main] init_server_pkgs :NFS STARTUP :EVENT :ID Mapper successfully initialized.
21/01/2021 10:48:08 : epoch 60095be8 : nfsshares-a : ganesha.nfsd-246[main] rados_ng_init :CLIENT ID :EVENT :Rados kv store init done
21/01/2021 10:48:08 : epoch 60095be8 : nfsshares-a : ganesha.nfsd-246[main] nfs_start_grace :STATE :EVENT :NFS Server Now IN GRACE, duration 90
21/01/2021 10:48:08 : epoch 60095be8 : nfsshares-a : ganesha.nfsd-246[main] nfs_lift_grace_locked :STATE :EVENT :NFS Server Now NOT IN GRACE
21/01/2021 10:48:22 : epoch 60095be8 : nfsshares-a : ganesha.nfsd-246[main] lower_my_caps :NFS STARTUP :EVENT :CAP_SYS_RESOURCE was successfully removed for proper quota management in FSAL
21/01/2021 10:48:22 : epoch 60095be8 : nfsshares-a : ganesha.nfsd-246[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_chroot,cap_sys_ptrace,cap_sys_pacct,cap_sys_admin,cap_sys_boot,cap_sys_nice,cap_sys_tty_config,cap_mknod,cap_lease,cap_audit_write,cap_audit_control,cap_setfcap,cap_syslog,cap_wake_alarm,cap_block_suspend,cap_audit_read+ep
21/01/2021 10:48:22 : epoch 60095be8 : nfsshares-a : ganesha.nfsd-246[main] nfs_Init_admin_thread :NFS CB :EVENT :Admin thread initialized
21/01/2021 10:48:22 : epoch 60095be8 : nfsshares-a : ganesha.nfsd-246[main] nfs_rpc_cb_init_ccache :NFS STARTUP :WARN :gssd_refresh_krb5_machine_credential failed (-1765328160:22)
21/01/2021 10:48:22 : epoch 60095be8 : nfsshares-a : ganesha.nfsd-246[main] nfs_Start_threads :THREAD :EVENT :Starting delayed executor.
21/01/2021 10:48:22 : epoch 60095be8 : nfsshares-a : ganesha.nfsd-246[main] nfs_Start_threads :THREAD :EVENT :gsh_dbusthread was started successfully
21/01/2021 10:48:22 : epoch 60095be8 : nfsshares-a : ganesha.nfsd-246[main] nfs_Start_threads :THREAD :EVENT :admin thread was started successfully
21/01/2021 10:48:22 : epoch 60095be8 : nfsshares-a : ganesha.nfsd-246[main] nfs_Start_threads :THREAD :EVENT :reaper thread was started successfully
21/01/2021 10:48:22 : epoch 60095be8 : nfsshares-a : ganesha.nfsd-246[main] nfs_Start_threads :THREAD :EVENT :General fridge was started successfully
21/01/2021 10:48:22 : epoch 60095be8 : nfsshares-a : ganesha.nfsd-246[main] nfs_start :NFS STARTUP :EVENT :-------------------------------------------------
21/01/2021 10:48:22 : epoch 60095be8 : nfsshares-a : ganesha.nfsd-246[main] nfs_start :NFS STARTUP :EVENT : NFS SERVER INITIALIZED
21/01/2021 10:48:22 : epoch 60095be8 : nfsshares-a : ganesha.nfsd-246[main] nfs_start :NFS STARTUP :EVENT :-------------------------------------------------
22/01/2021 19:47:22 : epoch 600b2bca : nfsshares-a : ganesha.nfsd-236[main] main :MAIN :EVENT :ganesha.nfsd Starting: Ganesha Version 3.4
22/01/2021 19:47:22 : epoch 600b2bca : nfsshares-a : ganesha.nfsd-249[main] nfs_set_param_from_conf :NFS STARTUP :EVENT :Configuration file successfully parsed
22/01/2021 19:47:22 : epoch 600b2bca : nfsshares-a : ganesha.nfsd-249[main] init_server_pkgs :NFS STARTUP :EVENT :Initializing ID Mapper.
22/01/2021 19:47:22 : epoch 600b2bca : nfsshares-a : ganesha.nfsd-249[main] init_server_pkgs :NFS STARTUP :EVENT :ID Mapper successfully initialized.
22/01/2021 19:47:22 : epoch 600b2bca : nfsshares-a : ganesha.nfsd-249[main] rados_ng_init :CLIENT ID :EVENT :Rados kv store init done
22/01/2021 19:47:22 : epoch 600b2bca : nfsshares-a : ganesha.nfsd-249[main] nfs_start_grace :STATE :EVENT :NFS Server Now IN GRACE, duration 90
22/01/2021 19:47:22 : epoch 600b2bca : nfsshares-a : ganesha.nfsd-249[main] nfs_lift_grace_locked :STATE :EVENT :NFS Server Now NOT IN GRACE
22/01/2021 19:47:49 : epoch 600b2bca : nfsshares-a : ganesha.nfsd-249[main] lower_my_caps :NFS STARTUP :EVENT :CAP_SYS_RESOURCE was successfully removed for proper quota management in FSAL
22/01/2021 19:47:49 : epoch 600b2bca : nfsshares-a : ganesha.nfsd-249[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_chroot,cap_sys_ptrace,cap_sys_pacct,cap_sys_admin,cap_sys_boot,cap_sys_nice,cap_sys_tty_config,cap_mknod,cap_lease,cap_audit_write,cap_audit_control,cap_setfcap,cap_syslog,cap_wake_alarm,cap_block_suspend,cap_audit_read+ep
22/01/2021 19:47:49 : epoch 600b2bca : nfsshares-a : ganesha.nfsd-249[main] nfs_Init_admin_thread :NFS CB :EVENT :Admin thread initialized
22/01/2021 19:47:49 : epoch 600b2bca : nfsshares-a : ganesha.nfsd-249[main] nfs_rpc_cb_init_ccache :NFS STARTUP :WARN :gssd_refresh_krb5_machine_credential failed (-1765328160:22)
22/01/2021 19:47:49 : epoch 600b2bca : nfsshares-a : ganesha.nfsd-249[main] nfs_Start_threads :THREAD :EVENT :Starting delayed executor.
22/01/2021 19:47:49 : epoch 600b2bca : nfsshares-a : ganesha.nfsd-249[main] nfs_Start_threads :THREAD :EVENT :gsh_dbusthread was started successfully
22/01/2021 19:47:49 : epoch 600b2bca : nfsshares-a : ganesha.nfsd-249[main] nfs_Start_threads :THREAD :EVENT :admin thread was started successfully
22/01/2021 19:47:49 : epoch 600b2bca : nfsshares-a : ganesha.nfsd-249[main] nfs_Start_threads :THREAD :EVENT :reaper thread was started successfully
22/01/2021 19:47:49 : epoch 600b2bca : nfsshares-a : ganesha.nfsd-249[main] nfs_Start_threads :THREAD :EVENT :General fridge was started successfully
22/01/2021 19:47:49 : epoch 600b2bca : nfsshares-a : ganesha.nfsd-249[main] nfs_start :NFS STARTUP :EVENT :-------------------------------------------------
22/01/2021 19:47:49 : epoch 600b2bca : nfsshares-a : ganesha.nfsd-249[main] nfs_start :NFS STARTUP :EVENT : NFS SERVER INITIALIZED
22/01/2021 19:47:49 : epoch 600b2bca : nfsshares-a : ganesha.nfsd-249[main] nfs_start :NFS STARTUP :EVENT :-------------------------------------------------
root@nfsshares-a:~#
3 years, 10 months