On 07/01/2013 01:27 PM, Maciej Gałkiewicz wrote:
Hello
I have a question about live migration when libvirt requires sasl authentication. I have managed to configure remote access for user nova with sasl enabled (credentials stored in auth.conf - https://review.openstack.org/#/c/12706/). It looks like live migration do not use these credentials at all. What is more it thinks that sasl is not not configured:
I'd say this is a problem with sasl, nothing else. "No mechanism found" may mean that libraries for configured mechanism aren't found or unknown mechanism is being requested. I doubt that access to those libraries would be a permisison problem, but you might be missing some cyrus-sasl-* package. What distro are you running on and what sasl-related packages do you have installed?
2013-07-01 09:49:09.317+0000: 17997: error : virNetSASLSessionClientStart:484 : authentication failed: Failed to start SASL negotiation: -4 (SASL(-4): no mechanism available: No worthy mechs found) 2013-07-01 09:49:09.317+0000: 17997: error : doPeer2PeerMigrate:2527 : operation failed: Failed to connect to remote libvirt URI qemu+tcp://n12c1/system
I execute migration like this: nova live-migration c923af69-4cb3-46dd-8bd2-871812d7d223 n12c1
Nova.conf: live_migration_flag=VIR_MIGRATE_UNDEFINE_SOURCE,VIR_MIGRATE_PEER2PEER,VIR_MIGRATE_LIVE
Could you please let me know whether nova/libvirt support p2p live migration with sasl and if so point out what might be misconfigured? Disabling sasl solves all my problems but I have to configure some authentication.
I would really appreciate your help.
regards
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