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vmware-archive
atc
OPEN SOURCE2017–2017
vmware-archive / atc · Archived

atc

old - now lives in https://github.com/concourse/concourse

2Distinct people
2Mentions
0Explicit recommenders
111GitHub stars
REPOSITORY AT A GLANCE

What to know before exploring

What it is

old - now lives in https://github.com/concourse/concourse

GitHub

Where it is used

No documented product use has been verified yet.

What people are saying

No recommendation phrase was found in the indexed comments.

No classified warning is attached to this page. Read the discussions before treating silence as approval.

Also in these discussions

No other repository is repeatedly linked in the same discussions.

This week on Hacker News

Nov 7–Nov 14 UTC · Direct repository links and separately labeled related project stories. Indexed through 11/14/2026, 3:56:07 PM UTC.

No direct repository links were found in the indexed HN discussions over the past seven days. Older discussions are available below.

Mentions over time

HN mentions by hour2 dated mentions

Observed mentions: 2017-07-17 21:33:38 UTC to 2017-07-18 06:54:52 UTC.

012017-07-17 21:00:00 UTC to 2017-07-17 22:00:00 UTC (exclusive): 1 mentions; 0 submissions, 1 commentsJul 17, 21:002017-07-17 22:00:00 UTC to 2017-07-17 23:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2017-07-17 23:00:00 UTC to 2017-07-18 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2017-07-18 00:00:00 UTC to 2017-07-18 01:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2017-07-18 01:00:00 UTC to 2017-07-18 02:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 commentsJul 18, 01:002017-07-18 02:00:00 UTC to 2017-07-18 03:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2017-07-18 03:00:00 UTC to 2017-07-18 04:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2017-07-18 04:00:00 UTC to 2017-07-18 05:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2017-07-18 05:00:00 UTC to 2017-07-18 06:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2017-07-18 06:00:00 UTC to 2017-07-18 07:00:00 UTC (exclusive): 1 mentions; 0 submissions, 1 commentsJul 18, 06:00

Counts come from the repository’s dated source evidence. Index cutoff: 2026-11-02 08:16:59 UTC.

View mention counts and date ranges
UTC ranges include their start and exclude their end. Select a period to filter the source evidence.
PeriodStart (UTC)End (exclusive, UTC)MentionsSubmissionsComments
Jul 17, 21:002017-07-17 21:00:00 UTC2017-07-17 22:00:00 UTC101
Jul 17, 22:002017-07-17 22:00:00 UTC2017-07-17 23:00:00 UTC000
Jul 17, 23:002017-07-17 23:00:00 UTC2017-07-18 00:00:00 UTC000
Jul 18, 00:002017-07-18 00:00:00 UTC2017-07-18 01:00:00 UTC000
Jul 18, 01:002017-07-18 01:00:00 UTC2017-07-18 02:00:00 UTC000
Jul 18, 02:002017-07-18 02:00:00 UTC2017-07-18 03:00:00 UTC000
Jul 18, 03:002017-07-18 03:00:00 UTC2017-07-18 04:00:00 UTC000
Jul 18, 04:002017-07-18 04:00:00 UTC2017-07-18 05:00:00 UTC000
Jul 18, 05:002017-07-18 05:00:00 UTC2017-07-18 06:00:00 UTC000
Jul 18, 06:002017-07-18 06:00:00 UTC2017-07-18 07:00:00 UTC101

What Hacker News says

2 sources
UI freezes are completely client side and related to the elm implementation and your browser's execution of the code. The size of your VM doesn't matter at all. ATC is a more of a dependency scheduler. The code [1] shows that it basically gets all pending jobs, and then runs them. There's no concept of queueing or maximum number of jobs, you just have to hope your limits are high enough (max containers, max tasks in systemd, max fds in the same) and that your machine doesn't fall over in the attempts. The "massive" scheduling system also has no idea what nodes need work and which do not [2] so the idea is to heavily overprovision until it doesn't fall over (on top of already beefy requirements which others have alluded to in this thread). You can not serialize multiple pipelines. Only within pipelines. If I have 10 pipelines, they will al
Read the rest
l run independently and there's nothing you can do about it other than attempt serialization with the pool resource (which we've recently had problems with - it also appears to be buggy and we're looking at submitting patches). I've got a tremendous amount of experience with this system and I believe it's everything I made it out to be. The rebuttals you've provided to my issues are simply a lack of understanding of our context, not every user will have the same experience with any given product. [1] https://github.com/concourse/atc/blob/master/scheduler/sched... [2] https://github.com/concourse/concourse/issues/675
In Concourse CI
> However it performs like a dud. No scheduling to speak of, just runs everything as soon as it can. We've run into nodes dying under load (-not- underprovisioned, could run all these jobs manually at once on these monsters). We've run into problems with volume reaping, fork bombs, ui freezes, everything under the sun. I've used concourse as a consumer for 3 years and I've very, very rarely seen any of the problems you're describing, even on the older versions and certainly not in the last year or so. > no scheduling to speak of Concourse has a massive scheduling system built into it.. https://github.com/concourse/atc Furthermore, you can configure jobs to run in serial (default is parallel). > ui freezes Put your `web` binary on a decently-sized VM and your problem should disappear. Also, don't have your workers on the same VM as your `w
Read the rest
eb`.
In Concourse CI

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