yahoo-eng-team team mailing list archive

[Joseph Lanoux <joseph.lanoux@xxxxxx>]

Public bug reported:

Live-migration monitoring is based on the memory migration only. Which
means that if a live-migration is taking a long time to migrate a disk,
only the live_migration_progress_timeout parameter will be taken into
account and will supersede the live_migration_completion_timeout
parameter. In other words, because live_migration_progress_timeout is
logically smaller than live_migration_completion_timeout, the later will
never be used except in a case where the disk migration is fast and the
memory migration is slow.

Steps to reproduce:
- live-migrate an instance with lots a data on its ephemeral disk
- observe that the live-migration is aborted because of live_migration_progress_timeout only.

** Affects: nova
     Importance: Undecided
         Status: New

** Summary changed:

- live-migration monitoring is working properly
+ live-migration monitoring is not working properly

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https://bugs.launchpad.net/bugs/1583145

Title:
  live-migration monitoring is not working properly

Status in OpenStack Compute (nova):
  New

Bug description:
  Live-migration monitoring is based on the memory migration only. Which
  means that if a live-migration is taking a long time to migrate a
  disk, only the live_migration_progress_timeout parameter will be taken
  into account and will supersede the live_migration_completion_timeout
  parameter. In other words, because live_migration_progress_timeout is
  logically smaller than live_migration_completion_timeout, the later
  will never be used except in a case where the disk migration is fast
  and the memory migration is slow.

  Steps to reproduce:
  - live-migrate an instance with lots a data on its ephemeral disk
  - observe that the live-migration is aborted because of live_migration_progress_timeout only.

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