host-evacuate-live doesn't limit number of servers evacuated simultaneously from a host
Bug #1457554 reported by
Artom Lifshitz
This bug affects 1 person
| Affects | Status | Importance | Assigned to | Milestone | |
|---|---|---|---|---|---|
| OpenStack Compute (nova) |
Invalid
|
Undecided
|
Unassigned | ||
Bug Description
Attempting to evacuate too many servers from a single host simultaneously could result in bandwidth starvation. Instances dirty their memory faster than they can be migrated, resulting in instances perpetually stuck in the migrating state.
| Changed in python-novaclient: | |
| assignee: | nobody → Artom Lifshitz (notartom) |
| no longer affects: | python-novaclient |
Revision history for this message
| Pawel Koniszewski (pawel-koniszewski) wrote | #1 |
| Changed in nova: | |
| status: | New → Invalid |
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Nova allows to live migrate multiple VMs at a time, there's no limit for simultaneous live migrations - everything depends on use case and setup configuration (particularly network configuration and bandwidth).
host-evacuate-live is implemented in python-novaclient, so nothing to fix in nova.