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Re: [cross-project-issues-dev] Download statistics for p2 repositories?

We discussed this in today's p2 development meeting, and are thinking about a very simple mechanism in p2 that would allow gathering basic download statistics. The "single file hack" approach is also possible in p2, but a bit more complicated to set up. Essentially p2 repositories have a mapping mechanism somewhat like apache mod rewrite, that would allow rewriting an artifact URL to redirect through a different server. However these rules are quite cumbersome to write and this approach creates another point of failure in the install process. I have started a discussion on the following bug report for those who are interested in following along:


Denis Roy <denis.roy@xxxxxxxxxxx>
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02/08/2010 09:50 AM

Please respond to
Cross project issues <cross-project-issues-dev@xxxxxxxxxxx>

Cross project issues <cross-project-issues-dev@xxxxxxxxxxx>
[cross-project-issues-dev] Download statistics for p2 repositories?


As you may know, does not possess the ability to maintain download statistics of p2-enabled repositories.  We'd like to change that for Helios.

With the Update Manager, we came up with the Single File Hack.  Essentially, one JAR file representing one user download was using an absolute URL mapped to an server.  All other JAR files would be served from the mirror the user had selected.  This hack worked quite well.

In the p2 world, I am told that the Single File Hack is still be possible, but it requires tweaking the p2 repositories.  I'd like to investigate (and enable) this for the Helios repo, and document a procedure that would enable individual projects to gather download statistics should they wish to do so.

Since I'm not a p2 expert by any means, could anyone help explain how to configure a p2 repo in such a way that a single JAR file is fetched from and all others from mirrors?

Thanks in advance for your help,

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