gordan at bobich.net
Wed Jun 8 11:34:55 UTC 2011
Hans K. Rosbach wrote:
> -SCTP support, this might not be a silver bullet but it feels
> Features that might need glusterfs code changes:
> -Multihoming (failover when one nic dies)
How is this different to what can be achieved (probably much more
cleanly) with NIC bonding?
> -Ability to have the storage nodes autosync themselves.
> In our setup the normal nodes have 2x1Gbit connections while the
> storage boxes have 2x10Gbit connections, so having the storage
> boxes use their own bandwidth and resources to sync would be nice.
Sounds like you want server-side rather than client-side replication.
You could do this by using afr/replicate on the servers, and export via
NFS to the clients. Have failover handled as for any normal NFS server.
> -An ability for the clients to subscribe to metadata updates for
> a specific directory would also be nice, so that it can cache that
> folders stats while working there and still know that it will not
> miss any changes. This would perhaps increase overhead in large
> clusters but could improve performance by a lot in clusters where
> several nodes work in the same folder (mail spool folder for example).
You have a shared mail spool on your nodes? How do you avoid race
conditions on deferred mail?
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