Re: [libvirt] [RFC] libvirt support multi-thread compression for live migration
On 2015年06月04日 20:01, Jiri Denemark wrote:
On Wed, Jun 03, 2015 at 15:13:17 +0000, Feng, Shaohe wrote:
> Eric,
> Thank you for reply.
>
> Is it necessary to expose these two APIs to user application?
> + virdomainMigrateSetCapabilities
> + virdomainMigrateGetCapabilities
>
> For qemu , the migration capabilities are "xbzrle",
"rdma-pin-all", "auto-converge",
> "zero-blocks" and "compress".
No, these capabilities are either turned on/off based on flags passed to
virDomainMigrate3 API.
I think we need to call qemuMonitorGetMigrationCapability
when
qemuMigrationSetCompression
if the source/dest node doesn't support 'compress' capability, we need
to stop migration if
flags contain VIR_MIGRATE_COMPRESSED (currently it stands for xbzrle,
and Eric's previous mail
suggest we share this flag with 'compress')
-Eli.
Jirka
--
BR, Eli(Li Yong)Qiao
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