[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] [Xen-devel] Wonky results with pvops live migration under 4.0.1
Good day, We migrated one of our Xen clusters to the gitco 4.0.1 release after seeing that it seemed to fix the live migration issues we were having under 3.4.3 on our test cluster. It turns out our tests had no bearing on our production cluster. The production cluster is a mix of mostly AMD Opteron with a few Intel Xeon. Migration issues do not correlate to cpu architectures, however. I have run a test with a machine running pvops 2.6.32.25 performing live migrations. For some source & destination pairs the migration would consistently work. For other combinations it would consistently break. The symptoms when it breaks are that the console does not respond to keyboard input. The network does ping. Interactive ssh sessions no longer work. The shell is loaded, but it also does not respond to keyboard input. Noninteractive ssh calls are normally executed. If a shutdown is sent to the vps, the shutdown sequence seems to hang on running sync. All dom0 nodes run CentOS 5.5 with gitco Xen 4.0.1 repositories. Here is a raw dump of some migration tests: A = 16 cores Xeon, 48GB memory, Emulex FC 8Gb B-E = 24 cores Opteron, 128GB memory, Emulex FC 8Gb C->B OK B->C FAIL B->C FAIL C->B OK D->C OK C->D FAIL C->D FAIL B->D FAIL D->B OK E->F OK F->E FAIL F->E FAIL E->A OK A->E FAIL The guest has 256MB memory, all dom0s are configured in bridging mode (with the bridges attached to a vlan interface). Is there anything I should try? Cheers, Pim van Riezen _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel
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