[Gluster-devel] regarding GF_CONTENT_KEY and dht2 - perf with small files

[Pranith Kumar Karampuri]

On 02/03/2016 07:54 PM, Jeff Darcy wrote:
>> Problem is with workloads which know the files that need to be read
>> without readdir, like hyperlinks (webserver), swift objects etc. These
>> are two I know of which will have this problem, which can't be improved
>> because we don't have metadata, data co-located. I have been trying to
>> think of a solution for past few days. Nothing good is coming up :-/
> In those cases, caching (at the MDS) would certainly help a lot.  Some
> variation of the compounding infrastructure under development for Samba
> etc. might also apply, since this really is a compound operation.
Even with compound fops It will still require two sequential network 
operations from dht2. One to MDC and one to DC So I don't think it helps.

Pranith