I am attempting to migrate a container from one host to another. I am
running into issues that cause the migration to fail.
Environment information:
- Build:Debian 6; updates, install RHEL kernel
- Kernel:
042stab072.10
- Packages:
ploop-1.6-1.x86_64.rpm
ploop-devel-1.6-1.x86_64.rpm
ploop-lib-1.6-1.x86_64.rpm
vzctl-4.1.2-1.x86_64.rpm
vzctl-core-4.1.2-1.x86_64.rpm
vzkernel-2.6.32-042stab072.10.x86_64.rpm
vzkernel-debug-2.6.32-042stab072.10.x86_64.rpm
vzkernel-debug-devel-2.6.32-042stab072.10.x86_64.rpm
vzkernel-devel-2.6.32-042stab072.10.x86_64.rpm
vzkernel-firmware-2.6.32-042stab072.10.noarch.rpm
vzkernel-headers-2.6.32-042stab072.10.x86_64.rpm
vzquota-3.1-1.x86_64.rpm
The only part that is failing is the live migration. If I stop the
container, I can migrate without any issue.
root@cluster-01:~/.ssh# vzlist -a -o ctid,name,name,status
CTID NAME NAME
STATUS
1000 ns01 ns01
running
2000 dhcp01 dhcp01
running
3000 ca ca
running
4000 proxy01 proxy01
running
5000 fs01 fs01
running
6000 svn svn
running
root@cluster-01:~/.ssh# cat /etc/vz/conf/2000.conf
HOSTNAME="dhcp01"
NAMESERVER="10.0.20.250"
SEARCHDOMAIN="home.arswiki.org"
ONBOOT="yes"
NAME="dhcp01"
CONFIG_CUSTOMIZED=yes
AVNUMPROC="180:180"
CPUUNITS="1000"
DCACHESIZE="2147483647:2147483647"
DGRAMRCVBUF="2147483647:2147483647"
DISKINODES="2147483647:2147483647"
DISKSPACE="1048576:1048576"
#FEATURES="sysfs:on nfs:on "
KMEMSIZE="2147483647:2147483647"
LOCKEDPAGES="2147483647:2147483647"
NUMFILE="2147483647:2147483647"
NUMFLOCK="2147483647:2147483647"
NUMIPTENT="2147483647:2147483647"
NUMOTHERSOCK="2147483647:2147483647"
NUMPROC="2147483647:2147483647"
NUMPTY="2147483647:2147483647"
NUMSIGINFO="2147483647:2147483647"
NUMTCPSOCK="2147483647:2147483647"
OOMGUARPAGES="2147483647:2147483647"
ORIGIN_SAMPLE="vps.basic"
OSTEMPLATE=debian-6.0
OTHERSOCKBUF="2147483647:2147483647"
PHYSPAGES="2147483647:2147483647"
PRIVVMPAGES="2147483647:2147483647"
QUOTATIME="0"
SHMPAGES="2147483647:2147483647"
TCPRCVBUF="2147483647:2147483647"
TCPSNDBUF="2147483647:2147483647"
VMGUARPAGES="2147483647:2147483647"
BOOTORDER="9000"
NETIF="ifname=eth1,bridge=vmbr10,mac=00:18:51:77:29:AC,host_ifname=veth2000.10,host_mac=00:18:51:2A:39:C6;ifname=eth2,bridge=vmbr20,mac=00:18:51:D5:89:11,host_ifname=veth2000.20,host_mac=00:18:51:D7:48:F6;ifname=eth3,bridge=vmbr30,mac=00:18:51:FB:F5:23,host_ifname=veth2000.30,host_mac=00:18:51:F9:4B:EA;ifname=eth4,bridge=vmbr40,mac=00:18:51:49:E4:D7,host_ifname=veth2000.40,host_mac=00:18:51:17:55:76"
root@cluster-01:~/.ssh# vzmigrate -s -v -t --live cluster-02 2000
Starting live migration of CT 2000 to cluster-02
OpenVZ is running...
Loading /etc/vz/vz.conf and /etc/vz/conf/2000.conf files
Check if ploop is supported on destination node
Next unused minor: 347152
Check IPs on destination node:
Preparing remote node
Copying config file
2000.conf
100% 1425 1.4KB/s 00:00
Name dhcp01 assigned
No changes in CT configuration, not saving
Creating remote container root dir
Creating remote container private dir
Creating a container snapshot
Creating snapshot {ecd0befb-bee4-442d-8be5-76f33242598c}
Storing /vz/private/2000/Snapshots.xml.tmp
Setting up checkpoint...
suspend...
get context...
Checkpointing completed successfully
Storing /vz/private/2000/root.hdd/DiskDescriptor.xml.tmp
Creating delta
/vz/private/2000/root.hdd/root.hdd.{bf557feb-9538-45b2-865a-12dbe6d1a0d2}
bs=2048 size=2097152 sectors
Creating snapshot dev=/dev/ploop48460
img=/vz/private/2000/root.hdd/root.hdd.{bf557feb-9538-45b2-865a-12dbe6d1a0d2}
ploop snapshot {ecd0befb-bee4-442d-8be5-76f33242598c} has been
successfully created
Setting up checkpoint...
join context..
dump...
Can not dump container: Invalid argument
Checkpointing failed
Opening delta /vz/private/2000/root.hdd/root.hdd
Merging top delta
Storing /vz/private/2000/root.hdd/DiskDescriptor.xml
Removing
/vz/private/2000/root.hdd/root.hdd.{bf557feb-9538-45b2-865a-12dbe6d1a0d2}
ploop snapshot {5fbaabe3-6958-40ff-92a7-860e329aab41} has been
successfully merged
Resuming...
Failed to create snapshot
Error: Failed to snapshot a container
Syncing private
Live migrating container...
Copying top ploop delta with CT suspend
Sending /vz/private/2000/root.hdd/root.hdd
Setting up checkpoint...
suspend...
get context...
Checkpointing completed successfully
Dumping container
Setting up checkpoint...
join context..
dump...
Can not dump container: Invalid argument
Checkpointing failed
Error: Failed to dump container
Resuming...
WARNING: /etc/vz/conf/2000.conf not found: No such file or directory
I will try to look more into this, but wanted to see if it is a known issue.
Axton Grams
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