Red Hat Bugzilla – Bug 1475305
migration/postcopy: Handle network failures (qemu-kvm-rhev)
Last modified: 2017-08-16 08:25:47 EDT
Description of problem:
A failure of the migration network during the postcopy phase of migration is fatal; we can't restart the source since the current state is spread between the two hosts. We want to be able to reconnect the migration stream and complete the migration after someone has fixed the network
Version-Release number of selected component (if applicable):
Steps to Reproduce:
1. Start a migration
2. switch to postcopy mode
3. take an axe to the network cable
4. wait for TCP timeout
5. Replace network cable
Migration fails after the TCP timeout, the destination VM fails, and can't be restarted.
Some way to recover.