Barely able to use forum - slow loading
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Barely able to use forum - slow loading| U308 |
Posted: Apr 27 2012, 04:15 PM
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SLF Advocate  Group: Members Posts: 485 Member No.: 32 Joined: 11-April 11  |
I don't know where to post this, so feel free to have it moved.
Problem is that since 3 or 4 days ago loading of pages takes about 20 seconds. Never had this before with the forum. What is the reason, or am I the only one ? |
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| tux99 |
Posted: Apr 27 2012, 05:13 PM
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 SLF Guru Group: Members Posts: 1116 Member No.: 224 Joined: 28-May 11 |
Must be a network problem somewhere between you and the forum server, for me the forum is as fast as always. Try to do a traceroute to see where the bottleneck is. -------------------- My personal SL6 repository, specialized in audio/video software: http://pkgrepo.linuxtech.net/el6/
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| redman |
Posted: Apr 27 2012, 05:27 PM
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 SLF Admin Group: Admins Posts: 1660 Member No.: 2 Joined: 8-April 11 |
Probably a technical thing at your end. I'm not experiencing any problems from two different locations (two different ISPs). -------------------- What is SL? - Forum Rules - Info on 3rd Party Repos - How to post images - How to post large text / config files
Desktop: Asus P5QPL-AM, Intel Dual-Core E6500, 4GB DDR2, Asus GeForce GT 430 1GB, SL6.4 x86_64 Test box: Intel S5000PSL, 2x Intel Xeon E5310, 8GB ECC DDR2 FB-Dimm, Asus GeForce GT 220 1GB, SL6.4 x86_64 |
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| Nathan |
Posted: Apr 27 2012, 07:45 PM
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 SLF Geek Group: Members Posts: 290 Member No.: 928 Joined: 15-October 11 |
No problems for me either.
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| Zugzwang |
Posted: Apr 27 2012, 07:58 PM
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 SLF Junior Group: Members Posts: 32 Member No.: 863 Joined: 23-September 11 |
Hi, I have the same problem as U308. It's taken me around fifteen minutes to log in and post two messages :\
Dunno if the problem is at my end or not because other sites are loading fine .. |
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| Jcink |
Posted: Apr 27 2012, 09:16 PM
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 SLF IRC Team Group: Members Posts: 204 Member No.: 15 Joined: 10-April 11 |
Because of significant attacks against the forum server we've had to add DDoS protection. I'm guessing your IP(s) might have been getting throttled or picked up by false positives, blocking some of our resources and making the page load slow. I have been working with the DDoS protection provider to resolve these problems although it's taking time to find the right balance.
If possible, providing your IP address to me via PM would allow me to whitelist you for the time being and/or check to see if you are in fact being blocked by the system or if it's just a routing issue. |
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| joka |
Posted: Apr 27 2012, 09:41 PM
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SLF Member Group: Members Posts: 120 Member No.: 107 Joined: 28-April 11 |
I have the same problem as Zugzwang. Are German providers under suspect? For me the forum is now nearly unusable.
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| Jcink |
Posted: Apr 27 2012, 10:08 PM
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SLF IRC Team Group: Members Posts: 204 Member No.: 15 Joined: 10-April 11 |
no, they are not. it is purely an individual IP based blocking method and not one based by country or ISP. I have checked our blocked IP logs and there's actually only 6 of them in there - none from germany. I'd have to see some traceroutes to 72.8.190.101 to see if something else is up. |
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| Jcink |
Posted: Apr 30 2012, 12:18 AM
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SLF IRC Team Group: Members Posts: 204 Member No.: 15 Joined: 10-April 11 |
I've contacted my provider.
Looks like there's a peering issue and they are going to look into it. |
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| joka |
Posted: May 2 2012, 05:08 PM
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SLF Member Group: Members Posts: 120 Member No.: 107 Joined: 28-April 11 |
I've found out what makes the difference between a fast and slow forum in the browser (at least for me):
The forum becomes very slow and buttons are not shown if third-party cookies are not accepted before the URL scientiflinuxforum.org is opened the first time. Steps to reproduce:
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| U308 |
Posted: May 3 2012, 08:43 AM
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SLF Advocate Group: Members Posts: 485 Member No.: 32 Joined: 11-April 11 |
joka, yes it works in Firefox. Thanks.
Unfortunately I have so far been unable to do this in Opera which is actually my main browser. Will continue to check. (Echt zum Kotzen) |
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| Jcink |
Posted: May 3 2012, 10:18 PM
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SLF IRC Team Group: Members Posts: 204 Member No.: 15 Joined: 10-April 11 |
My provider is really dragging their feet getting this routing issue looked at. Sorry.
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| U308 |
Posted: May 6 2012, 10:46 AM
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SLF Advocate Group: Members Posts: 485 Member No.: 32 Joined: 11-April 11 |
 Jcink, back to full speed. Many thanks. |
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| Jcink |
Posted: May 6 2012, 11:16 PM
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SLF IRC Team Group: Members Posts: 204 Member No.: 15 Joined: 10-April 11 |
Glad to hear. Sorry it took so long to get fixed. SLF and our server is much better protected now though. |
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| AndrewSerk |
Posted: May 8 2012, 08:03 PM
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 SLF Moderator Group: Moderators Posts: 524 Member No.: 54 Joined: 14-April 11 |
Well, I guess it is my turn. This morning I had no issues but now I can barely use the forum.
I went from 11 hops when working well to over 30 hops now with most servers not responding with there info. Going to try different DNS and see if it makes any difference. Weird, I haven't changed DNS yet but get mixed load times now. Not sure what is going on. EDIT: I am having no issues using the forum today although my traceroute still looks "funny".  This post has been edited by AndrewSerk: May 9 2012, 06:33 PM |
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| zxq9 |
Posted: May 20 2012, 01:50 AM
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 SLF Advocate Group: Members Posts: 369 Member No.: 611 Joined: 5-August 11 |
Whoooly cow. I just caught the plague myself today.
Traceroute was topping out at 30+, just like you said, and load times were wacky. The textual load times were fine (specifically, if you surf with JavaScript turned off like I do most places, the text loading is OK, if you turn JS on nothing works correctly at these speeds, though, and you'll think the server is completely hung -- but just like most things involving JavaScript or cake, this is a lie.). The image load times are ridiculously slow -- so slow that forum specific images like thread status icons and similar will show me things I've not seen since the 9600baud days: boxes with substitute label text and an "x" (browsers still do that! good thing! So I can still see what the status of a thread is, just not with the icon.). Anyway, so turning JS off or cutting straight to the chase and browsing with Lynx (hehe) is a workaround for when the forums get all crazy. Its usable, just really distant by hop count. Here's some vanilla traceroute output:
Interesting thing is, if I set "-m 100" I can get 100+ unresolved hops, so its not just stopping at 30. The chances of an actual 100+ hop (or even 30+, really) between any two public facing computers on the net is extremely unlikely (or even two computers tucked deeply away within a private network passing through a long VPN tunnel before hitting the network and then back again). This probably means someone's ISP has a circular route in operation somewhere that needs to get straightened out. As in... someone didn't read the Cisco book very well, so actually getting complete data out of the loop is an entirely random proposition. Fortunately this seems to be affecting the media server more than whatever is sending rendered HTML, so shut JS off and browse away. |
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| Jcink |
Posted: May 20 2012, 08:25 PM
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SLF IRC Team Group: Members Posts: 204 Member No.: 15 Joined: 10-April 11 |
Yesterday around the time you posted there was some serious network disruption going on, so that's probably what you were noticing. It should be fine today.
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