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Re: [Qemu-devel] migration: adding migration to/from a file (v2)


From: Anthony Liguori
Subject: Re: [Qemu-devel] migration: adding migration to/from a file (v2)
Date: Thu, 19 Feb 2009 07:57:01 -0600
User-agent: Thunderbird 2.0.0.19 (X11/20090105)

Uri Lublin wrote:

Migration to file, uses migration-to-fd (supports live migration).
Migration from file, uses qemu-fopen directly.

Eh? Haven't we already talked about why this doesn't work? Maybe there's a v3 that you meant to send?

Regards,

Anthony Liguori

pre-save:
  (qemu) stop   # unless you really want live migration
  (qemu) migrate_set_speed 3.5G # not needed, speed things up

save:
  (qemu) migrate [-d] file:/path/to/state-file

load:
  [shell] <qemu> <params> -incoming file:/path/to/state-file


changes from v1:
   - making sure write would not block (using select)
   - pass max_throttle as is (can be set by user)
   - not checking qemu_mallocz
   - compile for non-windows as select is being used.






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