From: | Gezeala M(dot) Bacuño II <gezeala(at)gmail(dot)com> |
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To: | pgsql-performance(at)postgresql(dot)org |
Subject: | 1 machine + master DB with postgres_fdw + multiple DB instances on different ports |
Date: | 2014-06-17 00:24:47 |
Message-ID: | CAJKO3mXJbxQtPVc87TzMiQNcRRJZHqxhTGLedA6bV1KQp=ed5A@mail.gmail.com |
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Lists: | pgsql-performance |
Does anybody have a similar setup:
[a] 1 physical machine with half a terabyte of RAM, Xeon E7- 8837 @
2.67GHz, huge ZFS pools + ZIL + L2ARC
[b] master DB pg9.3 postgres_fdw with read/write capabilities, with
tablespaces and WAL on separate zpools, archiving enabled (for zfs
snapshots purposes), +17K tables, multi-TB in size and growing
[c] multiple DB instances listening on different ports or sockets on the
same machine with [b] (looking at 2 DB instances as of now which may
increase later on)
On the master DB there are several schemas with foreign tables located on
any of the [c] DB instance. postgres_fdw foreign server definitions and all
table sequence are on the master DB. Basically, I'm looking at any benefits
in terms of decreasing the master DB scaling, size, separate shared_buffers
and separate writer processes per instance (to utilize more CPU?). I'm also
planning on relocating seldom accessed tables on [c] DBs. Am I on the right
path on utilizing foreign data wrappers this way?
--
regards
gezeala bacuño II
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