On Wed, Dec 16, 2015 at 1:26 AM, zh1029 <zh1029@sina.com> wrote:
Hi, It seems low performance PostgreSQL(9.3.6) while writing data to glusterFS distributed file system. libgfapi is provide since GlusterFS version 3.4 to avoid kernel visits/data copy which can improve its performance. But I didn't find out any instruction from the PostgreSQL web page. Do you know if PostgreSQL later release supports using libgfapi to optimized write data to ClusterFS file system.
The real question is, why are you using GLusterFS? It's important to be careful since PostgreSQL provides no mechanism to allow for shared-disk clustering (active/active). If you are planning on using active/passive, you must plan carefully so as not to create a split-brain scenario.
-- Scott Mead Sr. Architect OpenSCG PostgreSQL, Java & Linux Experts