On Thu, Feb 01, 2018 at 06:15:31PM -0000, Andres Rodriguez wrote: > @Jason,
> Packet 90573 doesn't seem to me as an indication of what you are > describing. What I see is this: > 1. grub makes ~30 requests for PXE config on grub.cfg-<mac>, after which it > gives up because it didn't receive a response. > 2. grub moves on and requests grub.cfg-default-amd64, and it receives a > response from MAAS. > Now, the difference between the above, is that 1 does *database* > lookups, while 2 does not. In other words, 1 causes a request to obtain > the 'node' object based on the MAC to provide, and if grub is making 30+ > requests, then this can definitely flood the db with requests. Then as I've said on IRC, this is a bug in maas, because 30 udp retries should not generate 30 requests to the database. GRUB is *not* wrong to retransmit its udp packets when it doesn't get a response. If each of these increases the load in MAAS, then MAAS should be fixed. The case where GRUB retrieves the same file multiple times is a GRUB bug, but I don't see any evidence linking this GRUB bug to the timeout and fallback problem in Jason's latest trace. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1743249 Title: Failed Deployment after timeout trying to retrieve grub cfg To manage notifications about this bug go to: https://bugs.launchpad.net/maas/+bug/1743249/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
