[gfarm-discuss:17245] Re: Gfarm version 2.0.0 released

[SODA Noriyuki <soda@xxxxxxxxx>]

>>>>> On Thu, 29 Nov 2007 09:52:03 +0900 (JST),
      Naotaka YAMAMOTO <naotaka@xxxxxxxxxxxxx> said:

> Dear Tatebe-san and all,
> Congratulations on gfarm v2! I'm looking forward to imporove
> metadata accesses. However, I wonder how dose Gfmd need memory
> space on metadata node? So, I'm using Gfarm v1 with gfarm_agent
> which use over 4GB (4.2GB now). My metadata server (PostgreSQL)
> has about 26 milion pathname with about 70 Bytes (70 charactors of pathname).
> Dose Gfmd(v2) require memory less than gfarm_agent(v1)?

It depends. :)

At logical level, the metadata information that gfmd(v2) holds in
physical memory is more than the metadata that gfarm_agent(v2) holds.
But it's possible that gfmd(v2) requires less memory than gfarm_agent(v1),
because in-memory pathname representation of gfmd(v2) is far more
efficient than the representation of gfarm_agent(v1).
-- 
soda