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Skylines not opening #1907

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Otis27 opened this issue Jun 13, 2020 · 32 comments
Open

Skylines not opening #1907

Otis27 opened this issue Jun 13, 2020 · 32 comments

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@Otis27
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Otis27 commented Jun 13, 2020

When trying to open Skylines aero it states it is transferring data etc. It does not open and leaves a blank page. This has been happening for two or three weeks and a number of users in my gliding club are experiencing the same problem. Have tried Firefox and chrome with no joy.
@Otis27 Otis27 closed this as completed Jun 14, 2020
@Otis27
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Otis27 commented Jun 14, 2020

Repaired, thank you.

@Otis27 Otis27 reopened this Jun 15, 2020
@Otis27
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Otis27 commented Jun 15, 2020

Back to original problem again

@Turbo87
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Turbo87 commented Jun 15, 2020

@lordfolken any idea? it seems that the connection is sometimes quite slow. when I download IGC files it's only about 35 KB/s 🤔

@Exadios
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Exadios commented Jun 21, 2020

The console report (Firefox) of a failed page load:
Screenshot_2020-06-22_03-04-51

It doesn't make much sense to me.

@lordfolken
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I tried the page via redirect from outside and had no issues.

@Otis27
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Otis27 commented Jun 22, 2020 via email

@Otis27
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Otis27 commented Jun 22, 2020 via email

@lordfolken
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Do you have some kind of strange malware aka "firewall" software aka norton internet security or similar?

@Turbo87
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Turbo87 commented Jun 22, 2020

@lordfolken as I said before, this looks like a regular connection timeout, which is most likely caused by a slow connection. I just tried again and the max. speed I can get for downloads is 46 KB/s apparently.

here is the timing for the vendor.js file download (564 KB):

Bildschirmfoto 2020-06-22 um 22 45 07

@Otis27
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Otis27 commented Jun 23, 2020 via email

@lordfolken
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The line is 1GB upstream, so that shouldn't be a problem. I have relatively fast responses here even over celluar.
2020-06-23-212803_681x741_scrot

I also tried several online testers, all of those say relatively fast responses.

@lordfolken
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Several online speed tests later yield about the same result:
USA https://tools.pingdom.com/#5cb899d4be400000
Brazil https://tools.pingdom.com/#5cb89a2fa0800000

@lordfolken
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Could you please provide your ip addresses?

@lordfolken
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folken@mapgen:~$ wget https://skylines.aero/files/06nvep21.igc
--2020-06-23 20:25:28-- https://skylines.aero/files/06nvep21.igc
Resolving skylines.aero (skylines.aero)... 212.51.149.149
Connecting to skylines.aero (skylines.aero)|212.51.149.149|:443... connected.
HTTP request sent, awaiting response... 200 OK
Length: 788402 (770K) [application/octet-stream]
Saving to: ‘06nvep21.igc’

06nvep21.igc 100%[======================>] 769.92K 3.13MB/s in 0.2s

2020-06-23 20:25:28 (3.13 MB/s) - ‘06nvep21.igc’ saved [788402/788402]

folken@sonne:$ wget https://skylines.aero/files/06nvep21.igc
--2020-06-23 20:^C:19-- https://skylines.aero/files/06nvep21.igc
folken@sonne:$ wget https://skylines.aero/files/06nvep21.igc
--2020-06-23 20:25:47-- https://skylines.aero/files/06nvep21.igc
Resolving skylines.aero (skylines.aero)... 212.51.149.149
Connecting to skylines.aero (skylines.aero)|212.51.149.149|:443... connected.
HTTP request sent, awaiting response... 200 OK
Length: 788402 (770K) [application/octet-stream]
Saving to: ‘06nvep21.igc.1’

06nvep21.igc.1 100%[========================>] 769.92K 4.47MB/s in 0.2s

2020-06-23 20:25:47 (4.47 MB/s) - ‘06nvep21.igc.1’ saved [788402/788402]

@Otis27
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Otis27 commented Jun 24, 2020 via email

@Turbo87
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Turbo87 commented Jun 24, 2020 

traceroute to skylines.aero (212.51.149.149), 64 hops max, 52 byte packets
 1  ip-192-168-0-1 (192.168.0.1)  10.029 ms  6.185 ms  3.841 ms
 2  ip-81-210-176-198.hsi17.unitymediagroup.de (81.210.176.198)  12.020 ms  15.891 ms  13.592 ms
 3  ip-81-210-176-197.hsi17.unitymediagroup.de (81.210.176.197)  11.621 ms  16.179 ms  12.175 ms
 4  de-fra04d-rc1-ae-21-0.aorta.net (84.116.196.178)  29.233 ms  22.614 ms  18.562 ms
 5  de-fra02a-ri1-ae-1-0.aorta.net (84.116.130.102)  20.110 ms  19.785 ms  17.141 ms
 6  213.46.176.10 (213.46.176.10)  19.231 ms  21.895 ms  20.480 ms
 7  ffm-bb1-link.telia.net (62.115.114.88)  17.173 ms
    ffm-bb2-link.telia.net (62.115.114.90)  22.891 ms  31.499 ms
 8  ffm-b2-link.telia.net (62.115.142.195)  28.711 ms
    ffm-b2-link.telia.net (62.115.142.205)  41.194 ms  21.315 ms
 9  init7-ic-310232-ffm-b2.c.telia.net (62.115.54.58)  35.694 ms  29.390 ms  36.299 ms
10  r1lon1.core.init7.net (77.109.128.37)  26.306 ms  30.618 ms  25.959 ms
11  r1lon2.core.init7.net (82.197.168.42)  40.960 ms  72.343 ms  37.289 ms
12  r1bsl1.core.init7.net (77.109.128.102)  44.483 ms  57.004 ms  46.372 ms
13  620mor1.fiber7.inti7.net (82.197.164.95)  48.815 ms  52.927 ms  47.492 ms
14  620fhs1.fiber7.init7.net (77.109.128.30)  47.940 ms  53.874 ms  47.796 ms
15  620khu1.fiber7.init7.net (82.197.164.203)  44.751 ms  49.707 ms  46.252 ms
16  620kba1.fiber7.init7.net (82.197.164.166)  47.631 ms  48.195 ms  47.209 ms
17  212-51-149-149.fiber7.init7.net (212.51.149.149)  44.991 ms !Z  48.259 ms !Z  46.030 ms !Z

interestingly, the connection itself seems to be rather fast for me, just the download speed via HTTP is apparently not 🤔

@lordfolken
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https://mapgen-data.sigkill.ch/osm/planet.7z cand you download that? its hosted on the same site. Might be an issue with packet fragementation.

@Turbo87
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Turbo87 commented Jun 24, 2020

it's similarly slow for me with about 20-30 KB/sec

@lordfolken
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can you do a
tcpdump -i -s 65535 -w host mapgen-data.sigkill.ch
while you download please? The resulting file i can inspect in wireshark.

@Otis27
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Otis27 commented Jun 24, 2020 via email

@Exadios
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Exadios commented Jun 26, 2020

Screen shot and tcpdump output.

Screenshot_2020-06-26_21-21-11
skylines.txt

@lordfolken
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lordfolken commented Aug 1, 2020 •
edited
Loading

Does anyone have a place where i could ssh into where this is an issue? I have traveled all over france and simply am not able to reproduce the issue.

@Otis27
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Otis27 commented Aug 2, 2020 via email

@kapitan-iglu
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Hi,
this weekend I've problem loading www.skylines.aero web (but it may takes for longer time, last time I used skylines was 5.9.2020). Every request finishes with ERR_CONNECTION_TIMED_OUT. Same error for https://mapgen-data.sigkill.ch/osm/planet.7z. Tried from different internet providers, from different countries (SK and CZ), different browsers and devices. So I think I've excluded firewall as source of problem.

user@host~$ wget https://mapgen-data.sigkill.ch/osm/planet.7z
--2020-09-13 12:06:34--  https://mapgen-data.sigkill.ch/osm/planet.7z
Resolving mapgen-data.sigkill.ch (mapgen-data.sigkill.ch)... 212.51.149.149
Connecting to mapgen-data.sigkill.ch (mapgen-data.sigkill.ch)|212.51.149.149|:443... failed: Connection timed out.
Retrying.

In planet.tcpdump.txt you can see only TCP SYN requests with no answer.

What additional info should I provide?

@lordfolken
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new address is 212.51.149.110, dns records for xcsoar stuff is updated.

@marzecm marzecm mentioned this issue Sep 15, 2020
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@kapitan-iglu
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Skylines is up today. Was problem fixed or we can expect downtimes again?

@lordfolken
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no further outages are planned.

@Otis27
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Otis27 commented Sep 21, 2020 via email

@Turbo87
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Turbo87 commented Sep 21, 2020

the reason for that is that the server IP address has changed and XCSoar unfortunately has the IP hard-coded. once a new XCSoar release is published with the new IP things will be back to normal.

@Otis27
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Otis27 commented Sep 21, 2020 via email

@lordfolken
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Of course... 1603 i got an alert that skylines was again down. 16:21 i got an email from my provider, that they have moved my static ip. Not happy.

@TobiasLohner can you please update the records for skylines to now final destination 212.51.149.222

@lordfolken
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Skylines Tracking IP change: XCSoar/XCSoar#478

@kapitan-iglu kapitan-iglu mentioned this issue Sep 27, 2020
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@Turbo87 @lordfolken @Exadios @kapitan-iglu @Otis27