[Users] Vzmigrate fails (unsupported filesystem nfsd)

Corrado Fiore lists at corradofiore.it
Thu Sep 11 06:43:43 PDT 2014


Dear All,

I have two OpenVZ nodes running the following:

ploop.x86_64         1.12.1-1
ploop-lib.x86_64     1.12.1-1
vzctl.x86_64         4.7.2-1
vzctl-core.x86_64    4.7.2-1
vzkernel.x86_64      2.6.32-042stab093.4
vzkernel-devel.x86_64
vzquota.x86_64       3.1-1

I'm trying to live migrate a container which runs nfsd.  Both nodes are configured in the same way, therefore nfsd module is loaded:

# lsmod | grep nfs
pio_nfs                17576  0 
ploop                 116256  32 pio_nfs,pio_direct,pfmt_raw,pfmt_ploop1
nfsd                  311145  13 
nfs                   442468  7 pio_nfs,vzrst,vzcpt
lockd                  77189  3 vzrst,nfsd,nfs
fscache                55684  1 nfs
auth_rpcgss            44949  2 nfsd,nfs
nfs_acl                 2663  2 nfsd,nfs
sunrpc                268245  37 pio_nfs,nfsd,nfs,lockd,auth_rpcgss,nfs_acl

Whenever I try to live migrate the container, I get the following error:

# vzmigrate -r yes --ssh="-p 16501" --keep-dst --online -v destination_host 161
Locked CT 
Starting live migration of CT 161 to destination_host
OpenVZ is running...
   Checking for CPT version compatibility
   Checking for CPU flags compatibility
Error: Unsupported filesystem nfsd
Insufficient CPU capabilities: can't migrate
Error: Error: CPU capabilities check failed!
Error: Destination node CPU is not compatible
Error: Can't continue live migration

At that point, the lock file remains and has to be manually deleted.

On the other hand, offline migration of that container works fine.

The funny thing is that if I try to live migrate the container back to the original host, I get the same error (Unsupported filesystem nfsd / Insufficient CPU capabilities: can't migrate).

Shall I open a bug report for this?

Regards,
Corrado Fiore




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