Oh I don't know Shoehorning a DB interface into a FS
interface doesn't feel right but stranger things have
happened.
I've done it a few ways. echo commit /n/db/0/ctl is kind of where one
ends up
for my limbo postgres module I never got round to the fs part. i just
wrap the sql bits
I've done it a few ways. echo commit /n/db/0/ctl is kind of where one
ends up
for my limbo postgres module I never got round to the fs part. i just
wrap the sql bits in their own adt
i would think that rather than use an adt, one would want
to make the language the communication's
[...] but... SQL is really ugly. it's
not hard to construct something that provides the same functionality
in a much more palatable form. aesthetics aside, if you're dealing
with a database-heavy app, it can make the code much easier to read.
could you explain what in particular is
On Thu, Sep 3, 2009 at 5:13 PM, Anthony Sorace ano...@gmail.com wrote:
i've not used matt's sql module itself (i should check it out) so i
can't comment on his implementation, but... SQL is really ugly. it's
not hard to construct something that provides the same functionality
in a much more
it
seems so straightforward to just send formatted sql or
pl/sql to the engine and get normally formatted output.
I did somthing like this for mysql to access our
corperate telephone database.
I took the inferno odbcfs as an example:
http://www.vitanuova.com/inferno/man/10/odbc.html
On Sep 3, 2009, at 10:13 AM, Anthony Sorace wrote:
you can do things like
data constraints and validations in the application code, rather than
in the sql database itself, which always feels like this random
bolt-on to the application logic.
I think it's useful to think of relational
On Mon, 31 Aug 2009 11:33:13 CDT Eric Van Hensbergen eri...@gmail.com wrote:
On Mon, Aug 31, 2009 at 11:16 AM, Bakul Shahbakul+pl...@bitblocks.com wrote:
An intriguing idea that can point toward a synth fs interface
to a dbms or search results But I don't think this would
be a
On Wed, Sep 2, 2009 at 5:50 PM, Bakul Shah
bakul+pl...@bitblocks.combakul%2bpl...@bitblocks.com
wrote:
On Mon, 31 Aug 2009 11:33:13 CDT Eric Van Hensbergen eri...@gmail.com
wrote:
On Mon, Aug 31, 2009 at 11:16 AM, Bakul
Shahbakul+pl...@bitblocks.combakul%2bpl...@bitblocks.com
wrote:
On Aug 30, 2009, at 10:34 PM, erik quanstrom quans...@quanstro.net
wrote:
On Sun Aug 30 14:37:29 EDT 2009, rminn...@gmail.com wrote:
One way to make this kind of interesting is to address how you'd do a
reasonable zeroconf effort given that you need to boot 1m+ machines.
We've booted
I think there are a few issues beyond will it scale - of course with
128k nodes scaling is a baseline prereq for us. On BG we have a
segmented network to deal with -- but it's likely you'll want some
form of hierarchy regardless.
I have done much with dynamic service registry using
You can implement a NAT by mounting a /net from a perimeter machine
with a public IP, while connecting to it from an internal network of private
IP addresses, using the Plan 9 protocol 9P in the internal network.
This is from the wikipedia page on Plan 9 OS.
Is something like iptables like in
You can implement a NAT by mounting a /net from a perimeter machine
with a public IP, while connecting to it from an internal network of private
IP addresses, using the Plan 9 protocol 9P in the internal network.
This is from the wikipedia page on Plan 9 OS.
Is something like iptables
On Mon, Aug 31, 2009 at 7:51 AM, erik quanstromquans...@quanstro.net wrote:
could you explan why you're focused on dns?
a more natural way to use plan 9 would be to use
ndb and cs directly. wouldn't it?
Of course. My use of DNS was really just in abstract to refer to the
suite of existing
that wiki writeup isn't really right. importing /net isn't NAT in any
sort of technical sense; rather, it's what plan 9 does instead.
there's no translation of ports or addresses, it's more
(conceptually) like a straight multiplexing.
Of course. My use of DNS was really just in abstract to refer to the
suite of existing services for name and service resolution under Plan
9. However, I think the current interfaces for ndb and cs are very
limiting and the single file based query mechanisms don't really match
the
On Mon, Aug 31, 2009 at 9:04 AM, erik quanstromquans...@quanstro.net wrote:
given the database= option, if one could confine rapid changes to
smaller files, one could teach ndb to only reread changed files.
Why not have a synthetic file system interface to ndb that allows it
to update its own
given the database= option, if one could confine rapid changes to
smaller files, one could teach ndb to only reread changed files.
Why not have a synthetic file system interface to ndb that allows it
to update its own files? I think this is my primary problem.
Granular modification
2009/8/31 Vinu Rajashekhar vinuthe...@gmail.com:
You can implement a NAT by mounting a /net from a perimeter machine
with a public IP, while connecting to it from an internal network of private
IP addresses, using the Plan 9 protocol 9P in the internal network.
This is from the wikipedia page
Hmmm. we did that for FS processes on Plan B. I mean, keep a
dynamic version of a registry. It kept the list of volumes available at a
central place.
I think it can be used as is on Plan 9, without changes.
There was a program (I think it was called adsrv; not sure, it´s on the
Plan B man pages)
On Mon, Aug 31, 2009 at 9:36 AM, erik quanstromquans...@quanstro.net wrote:
i can see in principle how this could be a good idea (no more
comments, though). could you elaborate, though. i have found
editing /lib/ndb/local works well at the scales i see.
I think the main issue with just
On Mon, Aug 31, 2009 at 8:21 PM, Devon H. O'Delldevon.od...@gmail.com wrote:
2009/8/31 Vinu Rajashekhar vinuthe...@gmail.com:
You can implement a NAT by mounting a /net from a perimeter machine
with a public IP, while connecting to it from an internal network of private
IP addresses, using the
i can see in principle how this could be a good idea (no more
comments, though). could you elaborate, though. i have found
editing /lib/ndb/local works well at the scales i see.
[...]
machines, even with multiple admins. I have a feeling it starts to
break down with thousands of
While that sounds interesting and may be useful in its own right, a
centralized server isn't really desirable -- part of the nice thing of
zeroconf is moving to a decentralized environment, and ideally doing
it in a scalable fashion (which isn't trivial on hundreds of thousands
of cores, we
On Mon, 31 Aug 2009 09:25:36 CDT Eric Van Hensbergen eri...@gmail.com wrote:
Why not have a synthetic file system interface to ndb that allows it
to update its own files? I think this is my primary problem.
Granular modification to static files is a PITA to manage -- we should
be using
On Mon, Aug 31, 2009 at 10:52 AM, erik quanstromquans...@coraid.com wrote:
so plunkers like us with a few hundred machines are just casual users?
i'd hate for plan 9 to become harder to use outside a hpc environment.
it would be good to be flexable enough to support fairly degnerate cases
On Mon, Aug 31, 2009 at 11:16 AM, Bakul Shahbakul+pl...@bitblocks.com wrote:
ndb maps directly to a list of lisp's association lists but
how would you map this to a synthetic fs? Something like
attr/value to yield a tuple? For example:
My current intuition in these situations is to allow for
2009/8/31 Bakul Shah bakul+pl...@bitblocks.com:
But this is nasty!
% cat ndb/dom/'' # same as ndbquery dom ''
No, the nasty part is really that the file should be called `.' and
the filesystem reserves dot as the reference to the current directory.
You could probably call the file `dot'
2009/8/31 erik quanstrom quans...@coraid.com:
2009/8/31 Bakul Shah bakul+pl...@bitblocks.com:
But this is nasty!
% cat ndb/dom/'' # same as ndbquery dom ''
No, the nasty part is really that the file should be called `.' and
the filesystem reserves dot as the reference to the current
2009/8/31 Bakul Shah bakul+pl...@bitblocks.com:
But this is nasty!
% cat ndb/dom/'' # same as ndbquery dom ''
No, the nasty part is really that the file should be called `.' and
the filesystem reserves dot as the reference to the current directory.
You could probably call the file `dot' or
It's (in my opinion) slightly less evil because if(!strlen(name))
seems like a pretty poor way to determine that you're looking at the
root zone. It's also more intuitive and easier to document that you're
looking at the root than saying `to find root, look for a file named
as an empty
Hi,
I was looking for some open-source implementation work to be done as my
master's project when I chanced upon the Plan 9 GSOC projects page.
My interest is in networking, so I was particularly interested in projects about
adding zeroconf networking and firewall support to Plan 9.
I think I
I think your first, best bet is to try to find out what the Plan 9
community needs, rather than adding on something that might not be the
that important. I have not heard anyone express a need for zeroconf in
Plan 9, but maybe I'm missing something.
Simple example: file systems on Plan 9 are
On Sun, Aug 30, 2009 at 9:21 AM, ron minnichrminn...@gmail.com wrote:
I think your first, best bet is to try to find out what the Plan 9
community needs, rather than adding on something that might not be the
that important. I have not heard anyone express a need for zeroconf in
Plan 9, but
Simple example: file systems on Plan 9 are slow. Why is that? How do
they work? How would you go about finding out how to make them faster?
which ones? there are quite a number to choose from.
i've found that ken's fs beats the pants off nfs on similar
hardware with literally one cpu tied
personally, i think the best contributions come
from people who have a real personal need or
better want to solve a problem, solve it and
contribute the solution back to the community.
i think that's why unix and plan 9 exist at all.
so i would encourage folks who would like to
contribute to
On Sun, Aug 30, 2009 at 10:52 PM, erik quanstromquans...@quanstro.net wrote:
personally, i think the best contributions come
from people who have a real personal need or
better want to solve a problem, solve it and
contribute the solution back to the community.
Yes, I do agree with that.
On Sun, Aug 30, 2009 at 1:07 PM, erik quanstromquans...@quanstro.net wrote:
Simple example: file systems on Plan 9 are slow. Why is that? How do
they work? How would you go about finding out how to make them faster?
which ones? there are quite a number to choose from.
i've found that ken's
I wasn't thinking about doing this as a GSOC project,
I wanted to do something for my master's project which
was a hardcore open-source implementation, that's why I
was going through the gsoc ideas page.
makes sense to me. i'd incourage you to work a bit with
the community. part of open
Try this - build the source to charon over a 200ms link over 9p. Then
try again over sshfs.
why would you do this? why not run the compile closer to
the source. this is the power of plan 9.
Also, look at a single terminal with a local fossil install. Trace the
path of an 'ls /'. Count the
I see your point. It does sound like zeroconf would be useful to some
people. I wonder if it could be done with a 9p orientation as eric
suggested.
I don't recall what the security issues are with zeroconf, but, if
it's the microsoft-inspired version I'm thinking of, I would guess
there are many.
On Sun Aug 30 14:37:29 EDT 2009, rminn...@gmail.com wrote:
One way to make this kind of interesting is to address how you'd do a
reasonable zeroconf effort given that you need to boot 1m+ machines.
We've booted 4400*250 VMs on a machine at sandia, and, let me tell
you, it was a pain. It is
Reposting this to 9fans:
hola,
First of all, I'm really glad you are considering Plan 9 for your project,
thanks.
Can someone please discuss with me how to proceed, and what are the things
I should learn before starting on this ?
you can start by reading nemo's intro Introduction to
On Mon, Aug 31, 2009 at 9:47 AM, Federico G.
Benaventobenave...@gmail.com wrote:
Reposting this to 9fans:
hola,
First of all, I'm really glad you are considering Plan 9 for your project,
thanks.
Can someone please discuss with me how to proceed, and what are the things
I should learn
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