Re: Google maps / Unresponsiveness

From: <>
Date: Fri, 24 Jun 2005 17:27:54 -0400 (EDT)

i tried to install piggy-bank on deerpark alpha 1. got the
following error:

"Piggy Bank" could not be installed because of an error in
its Install Manifest ("2.0b2 (20050623)" is not a valid
Version String). Please contact the author of this item
about the problem.

i was hopeful that i was going to be able to start using
piggy bank again. the slowdown problem is too disruptive on
1.04. i usually have at least five tabs open and switch
frequently and i saw piggy bank causing pretty much
constant, massive slowdown.


On Fri, 24 Jun 2005, Stefano Mazzocchi wrote:

> Date: Fri, 24 Jun 2005 11:13:11 -0400
> From: Stefano Mazzocchi <>
> Reply-To:
> To:
> Subject: Re: Google maps / Unresponsiveness
> Oliver Cole wrote:
> > On Fri, 2005-06-24 at 15:22, Stefano Mazzocchi wrote:
> >
> >>you are too kind :-) (but, yes, our egos like these comments a lot ;-)
> >
> >
> > ;-)
> eheh :-)
> >>I personally fear (since I'm also the one doing the sysadmin on that
> >>machine ;-) of having all requests go to the simile server, it would be
> >>pretty easy to bring it down to its knees if PB keeps taking up like it has.
> >
> > How is it doing? I'm surprised I haven't seen this on Slashdot!
> slashdot rejected it :-) (probably because they already linked us when
> we released Welkin and they don't think it's that cool anymore... oh
> well, it made it to which, believe me, generates
> more load than slashdot these days)
> Take a look at
> after almost a month, the downloads are pretty steady. What's
> interesting is to compare the slashdot load of web pages over the one
> generated by PB. Very different shape, but the total number of traffic
> generated is a lot more... well also because PB is far more appealing
> than Welkin for end users.
> > Have you had any non-technical users?
> yes, but PB feels too 'beta' for them. They try it out, they uninstall
> it and wait for a more solid release (faster and crisper and one that
> doesn't slow their firefox to their knees). We are fully aware of this
> and we'll make all possible efforts to make sure this happens. We
> believe in PB and want to make it happen for the general public, means
> that it won't be just another cool yet unusable research platform.
> >>>>That would provide a central place to update it, and could even allow
> >>>>you to provide a GUI warning that the mapping is currently broken while
> >>>>you work out the new version.
> >>
> >>Well, that is a better idea. We could have PB check the web site once a
> >>day for "update needed!" and provide a sort-of modular patch way for PB
> >>to update itself without requiring a restart (this is possible in things
> >>that don't rely on java code directly).
> >
> > My first thought was to hash the profile ID to produce a time of day at
> > which the installation will check for updates, in order to spread the
> > load, but this will of course mean that some don't get updated.
> >
> > Spreading the load on updates in that way is an interesting problem in
> > itself.
> well, some have argued that the best way to do that is to use the web
> architecture itself: meaning to have a load-balancing DNS and tons of
> machines. This is what google does. We just don't have the monetary
> resources to achieve a similar thing, so we need to think of something else.
> > On the other hand... I imagine all we need to update is a couple of
> > functions? That shouldn't require massive amounts of bandwidth.
> Exactly. If we can keep the 'patches' small enough, even having a few
> distribution servers shouldn't create that big of a problem.
> >>The downside of this is that it makes security of our servers a huge
> >>deal (I can't even imagine somebody putting up a trojan in there!) but I
> >>guess that we have the same problem with the XPI anyway.
> >
> > Well... mozdev will certainly provide another hosting platform. If you
> > can collect a few more mirrors like that that you can trust, eg, a
> > Sourceforge page, then you are home dry.
> We would like to avoid that. Bandwitdh is not really an issue here at
> MIT, it's more sysadmin resources. But don't worry, we just bought a new
> beefy server to spread the load, so we are preparing for the next wave.
> >>>>I also wanted to ask about the slightly adverse affect the PB extension
> >>>>has had on my Firefox.
> >>
> >>I thought we had an issue in JIRA, but I can't find it, so I created a
> >>new one. Add your comments/suggestions to that one if you want.
> >>
> >>
> >
> >
> > Have added your bit about Deerpark. I guess we have to wait and see. (Or
> > install Deerpark... but I don't have time for that.)
> I plan to work more on this issue next week. I'll post my results here.

Received on Fri Jun 24 2005 - 21:23:46 EDT

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