[Gluster-users] Small files performance

[ML mail]

Luciano, how do you enable direct-io-mode?

    On Wednesday, June 22, 2016 7:09 AM, Luciano Giacchetta <ldgiacchetta at gmail.com> wrote:
 

 Hi,

I have similar scenario, for a cars classified with millions of small files, mounted with gluster native client in a replica config.
The gluster server has 16gb RAM and 4 cores and mount the glusterfs with direct-io-mode=enable. Then i export to all servers ( windows included with CIFS )

performance.cache-refresh-timeout: 60
performance.read-ahead: enable
performance.write-behind-window-size: 4MB
performance.io-thread-count: 64
performance.cache-size: 12GB
performance.quick-read: on
performance.flush-behind: on
performance.write-behind: on
nfs.disable: on


--Saludos, LG
On Sat, May 28, 2016 at 6:46 AM, Gandalf Corvotempesta <gandalf.corvotempesta at gmail.com> wrote:

if i remember properly, each stat() on a file needs to be sent to all host in replica to check if are in syncIs this true for both gluster native client and nfs ganesha?Which is the best for a shared hosting storage with many millions of small files? About 15.000.000 small files in 800gb ? Or even for Maildir hostingGanesha can be configured for HA and loadbalancing so the biggest issue that was present in standard NFS now is goneAny advantage about native gluster over Ganesha? Removing the fuse requirement should also be a performance advantage for Ganesha over native client 
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