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Re: [cross-project-issues-dev] p2 repositories ... we can do better
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David, please do not confuse satisfaction (or lack thereof) with
desperation :)
Should anyone thing I'm blowing this out of proportion -- Yesterday
(March 1) we received 6,017,804 requests for various p2.index files
(including 1,765,385 under /releases) If each file contains 250 extra
bytes for comments, that add 1.4 GB of internet transfer for eclipse.org
PER DAY.
250 bytes is small, but when you scale it up to eclipse.org proportions,
things start getting real.
I wish p2 would just look for one file...
On 03/02/2012 12:54 PM, David M Williams wrote:
> Well you are just never satisfied are you? :) Just kidding ... it is a good
> idea ... but, for the record, that "rather large comment block" was only 5
> lines, consisting of only 250 characters. But, granted, that does triple
> the size of the minimum 130 character p2.index file. .... and when
> requested 500,000 times -- in one day! -- I can see how that'd add up (if
> everyone did it).
>
> Besides fixing those files, I added a note to the wiki at
> http://wiki.eclipse.org/Equinox/p2/p2_index#Examples
>
> and opened two related bugs:
>
> Bug 373121 - p2 should use request headers accepting compression from
> server
> Bug 373122 - p2.index files should have no comments
>
>
> Thanks for helping us improve,
>
>
>
>
>
> From: Denis Roy <denis.roy@xxxxxxxxxxx>
> To: cross-project-issues-dev@xxxxxxxxxxx,
> Date: 03/02/2012 08:52 AM
> Subject: Re: [cross-project-issues-dev] p2 repositories ... we can do
> better
> Sent by: cross-project-issues-dev-bounces@xxxxxxxxxxx
>
>
>
> David,
>
> Thanks for sending this out.
>
> I've noticed that on the release repos you've added a rather large
> comment block at the top of the file. This comment block gets
> transferred to each client that fetches the file. And since p2 doesn't
> ask for compressed content in its headers, the bytes go out full-sized.
>
> If the only purpose is to maintain some notes, I think a p2.index.readme
> file would be better, since it would not be transferred.
>
> Just a thought.
>
> Thanks,
>
> Denis
>
>
>
> On 03/02/2012 01:05 AM, David M Williams wrote:
>> That is, we can do better at educating people how to make a good p2
>> repository! We have not done that education well. Hopefully this note,
> with
>
> _________________
