From mboxrd@z Thu Jan  1 00:00:00 1970
Message-ID: <000701c21361$0a3fbd20$a228ff87@jjmj301>
From: "Tharaneedharan Vilwanathan" <dharani@lucent.com>
To: <9fans@cse.psu.edu>
References: <200206132058.QAA05517@math.psu.edu> <007901c21322$2461cc00$8fa12f18@jjmj301> <002501c2132d$18355680$a229ff87@jjmj301> <3D0952B9.6FFCD5D4@research.bell-labs.com>
Subject: Re: [9fans] venti
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Date: Fri, 14 Jun 2002 01:05:00 -0400
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hi,

sean's mail was useful.

i figured that i created the arena file with exactly 512MB size and did
fmtarenas. that probably didnt make any useful arenas. i raised the size to
nearly 2GB and then it created about 4 arenas. and that solved the problem.
wow! i think venti is going to be a great tool! all along, i was
uncomfortable using source code control systems. i think venti is going to
be a pain killer.

now, i have some questions:

- when the arena file is too small to create any useful arenas, does
fmtarenas throw an appropriate error? and would it be a good idea to give a
clue (in the man page) on the additional space needed for storing additional
details (for e.g: the space needed is (n * arenasize) + some_constant_size).
- in the arena file i created, the last arena size seemed to be less that
the other arena files. is it fine? if so, is it that arena file should
atleast hold one arena and the last arena could be a smaller one?
- how do i gracefully shutdown venti? i closed the window to shutdown venti.
- the http built-in server didnt seem to start by default. however, when i
used -h option, it worked. bug? feature? and when venti is killed (like the
way i did), the built-in http server didnt seem to die.

dharani

> your are right, the manual page should give you a hint.
> 5% is probably a good choice.
>
> The "no space left" sounds like venti is not detecting your arenas.
> you might try
> hget http://yourmachine/storage
> to get a dump of what the venti server thinks it has for storage.
>
> hope this helps
> seanq
>
> Tharaneedharan Vilwanathan wrote:
> >
> > > I used regular files to try venti and did just like the example in the
man
> > > page says.
> > >
> > > I faced 2 problems. The man page says what should be the size of the
index
> > i meant, the man page doesnt say a reasonable file size for the index
file.
> >
> > > file nor the utility takes a default value (in contrast, fmtarenas
takes a
> > > default value). For 512MB arena file, what should be the sie of the
index
> > > file? I created two 50MB files. Am I right?
> > >
> > > Next, after doing all the steps given in the example, I tried to do
'vac'
> > on
> > > a directory. It said like "no space left". I tried to vac a small
file.
> > > Still the same problem.
> > >
> > > Any clues?
> > >
> > > Thanks
> > > dharani