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| Latest revision | Your text | ||
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| − | This article | + | This article contents known reasons of migration failures. |
== Problem #1 == | == Problem #1 == | ||
| − | === Symptoms === | + | === Symptoms === |
After giving <tt>vzmigrate -v --online <ip address> <veid></tt> | After giving <tt>vzmigrate -v --online <ip address> <veid></tt> | ||
the following message appears: | the following message appears: | ||
<pre> | <pre> | ||
| − | Error: undump failed: Invalid | + | Error: undump failed: Invalid argumentStopping VE ... |
| − | |||
Restoring failed: | Restoring failed: | ||
iptables-restore exited with 1 | iptables-restore exited with 1 | ||
| Line 14: | Line 13: | ||
=== Reason === | === Reason === | ||
| − | The | + | The VE which you wish to migrate uses some iptables modules, that are not |
loaded on destination node. Consequently <tt>iptables-restore</tt> fails. | loaded on destination node. Consequently <tt>iptables-restore</tt> fails. | ||
| − | === | + | === Workaround === |
| − | Load all iptables kernel modules that are used by | + | Load all iptables kernel modules that are used by VE on destination node. |
| − | |||
=== Links === | === Links === | ||
| − | * | + | * http://bugzilla.openvz.org/show_bug.cgi?id=631 |
* http://forum.openvz.org/index.php?t=tree&th=2756&mid=14198&&rev=&reveal= | * http://forum.openvz.org/index.php?t=tree&th=2756&mid=14198&&rev=&reveal= | ||
== Problem #2 == | == Problem #2 == | ||
| − | === Symptoms === | + | === Symptoms === |
The system runs <tt>028stab031</tt> or older kernels and | The system runs <tt>028stab031</tt> or older kernels and | ||
after giving <tt>vzmigrate -v --online <ip address> <veid></tt> | after giving <tt>vzmigrate -v --online <ip address> <veid></tt> | ||
the following message appears: | the following message appears: | ||
<pre> | <pre> | ||
| − | Live migrating | + | Live migrating VE |
| − | Suspending | + | Suspending VE |
Setting up checkpoint... | Setting up checkpoint... | ||
suspend... | suspend... | ||
| − | Can not suspend | + | Can not suspend VE: Device or resource busy |
file on unsupported FS: magic 0bad1dea | file on unsupported FS: magic 0bad1dea | ||
Checkpointing failed | Checkpointing failed | ||
| − | Error: Failed to suspend | + | Error: Failed to suspend VE |
</pre> | </pre> | ||
=== Reason === | === Reason === | ||
| − | The | + | The VE which you wish to migrate uses inotify mechanism (magic 0bad1dea), that is not |
supported by <tt>028stab031</tt> and older kernels. | supported by <tt>028stab031</tt> and older kernels. | ||
| − | === | + | === Workaround === |
* for 2.6.18 rhel5 based kernels: Update till <tt>028stab035</tt> or newer kernel | * for 2.6.18 rhel5 based kernels: Update till <tt>028stab035</tt> or newer kernel | ||
* for 2.6.18 mainstream based kernels: Update till <tt>028stab043</tt> or newer kernel | * for 2.6.18 mainstream based kernels: Update till <tt>028stab043</tt> or newer kernel | ||
| Line 52: | Line 50: | ||
=== Links === | === Links === | ||
| − | * | + | * http://bugzilla.openvz.org/show_bug.cgi?id=552 |
* http://forum.openvz.org/index.php?t=tree&goto=14780&#msg_14780 | * http://forum.openvz.org/index.php?t=tree&goto=14780&#msg_14780 | ||
== Problem #3 == | == Problem #3 == | ||
| − | === Symptoms === | + | === Symptoms === |
After giving <tt>vzmigrate -v --online <ip address> <veid></tt> | After giving <tt>vzmigrate -v --online <ip address> <veid></tt> | ||
the following message appears: | the following message appears: | ||
<pre> | <pre> | ||
| − | Dumping | + | Dumping VE |
Setting up checkpoint... | Setting up checkpoint... | ||
join context.. | join context.. | ||
dump... | dump... | ||
| − | Can not dump | + | Can not dump VE: Device or resource busy |
unsupported netdevice tun0 | unsupported netdevice tun0 | ||
Checkpointing failed | Checkpointing failed | ||
| − | Error: Failed to dump | + | Error: Failed to dump VE |
</pre> | </pre> | ||
=== Reason === | === Reason === | ||
| − | Checkpointing doesn't support <tt>tun</tt> device inside | + | Checkpointing doesn't support <tt>tun</tt> device inside VE till <tt>2.6.18-028stab049</tt> and <tt>2.6.9-023stab044.14</tt> kernels. This device is usually used for [[VPN via the TUN/TAP device]] in VE. |
| − | === | + | === Workaround === |
| − | + | Just use 2.6.18-028stab049 or 2.6.9-023stab044.14 (and later) OpenVZ kernels. | |
| − | |||
=== Links === | === Links === | ||
| − | * | + | * http://bugzilla.openvz.org/show_bug.cgi?id=642 |
* http://forum.openvz.org/index.php?t=tree&goto=14826&#msg_14826 | * http://forum.openvz.org/index.php?t=tree&goto=14826&#msg_14826 | ||
[[Category:Troubleshooting]] | [[Category:Troubleshooting]] | ||
