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Re: [cross-project-issues-dev] Update site time outs

Maybe we should take some time next week to sit in front of a computer and try to find out more during EclipseCon...


On 6 March 2015 at 16:03, Denis Roy <denis.roy@xxxxxxxxxxx> wrote:

I'm on holidays this week but I can look into it next week. In terms of server logs, yeah, there's 22 million entries each day.  Finding patterns is a lot of work, especially when it's not clear what I should be looking for. I remember asking what an "automatic update" would look like and I was given a list of about 15 files. :)

There are probably other issues at play:
- more projects creating Maven-esque repos which cannot leverage our mirrors
- new projects may not be using the mirrors


On 03/06/2015 12:51 AM, Ed Merks wrote:

I'm not sure I saw a response to Markus' question:
Is there any pattern visible in the server logs? Some examples I'd be interested in...

- since when does it happen, does it happen since Luna SR2?
- is it caused by some specific p2 repositories, i.e. the ones in /releases/luna? or a project that release recently?
- is it related to bug 421779 (enable automated updates in Mars)?

It would be good to know what access pattern caused several days of the server being maxed out so we might take steps to avoid it in the future...


On 05/03/2015 1:58 PM, Denis Roy wrote:

I agree with your assessment below.  I've opened a number of bugs against p2 over the years but there appear to be few resources to help address the issues (this is not a complaint, just an observation).

Indeed, p2 is very "chatty" with and I don't think it needs to be.


On 05/03/15 02:53 AM, Ed Merks wrote:

The download server has been maxed out all week with HTTP connections at between 9,000 to 12,000 for download1, which I assume is the primary server for http:/

Things like were taking often more than 4 minutes to download.

Today it's finally at a more reasonable level at less than 3,000 when I used it early in the morning in Europe and I am able to work effectively again. 

Some of these problems seem to be to be fundamentally p2 problems.  Eike and I looked very closely at the underlying infrastructure as part of the Oomph work and even added offline support for Oomph as a layer on top, but p2 itself has a habit of downloading content and artifact files (not to mention the artifacts themselves when not using bundle pool) over and over again.   Also p2 tries many combinations for different potential update site configurations many of which yield 404.  In the end, it's very annoying to wait for the same things to download again and again and when large numbers of users are all doing that at the same time, failing, and trying again, it becomes a serious server problem. 


On 04/03/2015 4:33 PM, LETAVERNIER Camille wrote:


We’ve received several notifications [1] from users who encounter a lot of “Read time out” when they are trying to install/update some components from the simrel (/releases/luna) update site. It seems that it is a general issue (not specific to Papyrus). The same thing happens on the mars simrel update site (/releases/mars)


Are there some known server/performances issues? Maybe related to the recent SR2 release? Did anyone else run into these issues?





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