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-   -   LQ: Slowness etc. (https://www.linuxquestions.org/questions/lq-suggestions-and-feedback-7/lq-slowness-etc-916208/)

timetraveler 11-29-2011 03:10 PM

I have seen the bad gateway several times over past month or two.
I've seen other odd things that I usually move past with a page reload.
Just today I logged in (selected "keep logged in") and was forced to log in again.
Might be due to https vs. http.

Possibly the issues are service provider proxies/caches in between. Hard to say but I know ISPs are filtering and they also use transparent proxies/caches.

jeremy 11-29-2011 05:13 PM

It's possible some of the extended 5-10min 502 errors are the result of service provider proxies/caches. It may be worth doing a shift-refresh and also verifying that you haven't been redirected to an error URL. I've made a small number of changes today that should speed things up slightly and address an infrequent DB contention issue that we were unaware of.

--jeremy

corp769 11-29-2011 05:46 PM

Quote:

Originally Posted by jeremy (Post 4537748)
It's possible some of the extended 5-10min 502 errors are the result of service provider proxies/caches. It may be worth doing a shift-refresh and also verifying that you haven't been redirected to an error URL. I've made a small number of changes today that should speed things up slightly and address an infrequent DB contention issue that we were unaware of.

--jeremy

Well the other night, I restarted my squid server, disconnected and reconnected my modem just to rule out my mess of a network, and cleared all caches on my end, and it didn't seem to do much. As of right now, everything is fine though.

Cheers,

Josh

frankbell 11-29-2011 09:20 PM

I've had slow loading from time to time, which I put down to business and server load.

I've not had any of the other issues listed by OP.

druuna 11-29-2011 11:40 PM

@Jeremy:

I'll let you know what my LQ experience is over the next 24 hours or so. Haven't had any real improvements this far, but that's based on 5-10 minutes surfing the board. 2 time-outs and a few pages that took 5-10 seconds to load.

And, as always: Thanks for looking into this!

H_TeXMeX_H 11-30-2011 05:24 AM

Today I have noticed extended loading times, I'd estimate 15-20 sec. This is when replying to a post. In the past, and usually, it only takes a few seconds.

EDIT: Posting this only took 1-2 sec. But in my last thread it took 10 times as much.

corp769 11-30-2011 05:43 AM

All of last night at work, I haven't gotten any slow loading pages, and got no 502 errors so far within the past 10-12 hours. I guess something is working now, eh? :p

druuna 11-30-2011 11:20 AM

Hi again,

Still having the same problems (seems to be worse atm, took me 3 retries to get on LQ....).

Don't know if this helps, but this is what happens most of the time:

- click on a link,
- page seems to load initially,
- See this in the status bar "elements 8/8" (white page) and it hangs there. It either takes 10-20 seconds before the page appears or it times out.

Just to make sure: This isn't a problem I only have at home. I also see this behaviour at work and (yesterday) at a costumer (all of them having different ISP's).

druuna 11-30-2011 11:23 AM

Hi again,

Still having the same problems (seems to be worse atm, took me 3 retries to get on LQ....).

Don't know if this helps, but this is what happens most of the time:

- click on a link,
- page seems to load initially,
- See this in the status bar "elements 8/8" (white page) and it hangs there. It either takes 10-20 seconds before the page appears or it times out.

Just to make sure: This isn't a problem I only have at home. I also see this behaviour at work and (yesterday) at a costumer (all of them having different ISP's).

EDIT: First posting attempt timed out:
Quote:

Could not connect to remote server

You tried to access the address http://www.linuxquestions.org/questi...reply&t=916208, which is currently unavailable. Please make sure that the Web address (URL) is correctly spelt and punctuated, then try reloading the page.

jeremy 11-30-2011 11:24 AM

One of our monitoring locations is in the Netherlands and I'm not seeing any slowness from that location or on LQ right now in general. Can you email me a traceroute? Do you notice pages hanging on some non-LQ third party site?

--jeremy

jeremy 11-30-2011 11:31 AM

FWIW, I'm seeing about 10% packet loss from the LQ load balancer to you, but other than that, times and StDevs actually look quite decent for a transcontinental link.

--jeremy

druuna 11-30-2011 11:36 AM

Hi,

Mailed you the traceroute info.

I'm not sure how to check for third party sites (I don't see any).

I also have a new "symptom": My profile page doesn't show any tabs, all info is shown on one page (see attachment).

** connection timed out while trying to goto advanced layout (need to upload the screen-shot)

Uploading the file when fast!

druuna 11-30-2011 11:38 AM

Hi,

First of all: Thanks for looking into this :)

Quote:

Originally Posted by jeremy (Post 4538354)
FWIW, I'm seeing about 10% packet loss from the LQ load balancer to you, but other than that, times and StDevs actually look quite decent for a transcontinental link.

Can you take a longer look? At times I do have a good connection (last a few minutes).

As you can see in the previous 2 posts I keep hitting time outs.

EDIT: No problems posting, reloading this last post.......

druuna 11-30-2011 12:56 PM

Update:

Haven't had any problems in the last hour or so.

This one seemed to have resolved itself while Jeremy and I where checking/testing some things. No changes where made by Jeremy on his side (and neither did I on my side).

Closing this for now but feel free to add similar issues (I'll 'un-solve' this thread if that happens).

Jeremy: Thanks for the time and effort!

corp769 11-30-2011 01:01 PM

Quote:

Originally Posted by druuna (Post 4538424)
Update:

Haven't had any problems in the last hour or so.

This one seemed to have resolved itself while Jeremy and I where checking/testing some things. No changes where made by Jeremy on his side (and neither did I on my side).

Closing this for now but feel free to add similar issues (I'll 'un-solve' this thread if that happens).

Jeremy: Thanks for the time and effort!

Yeah, I'm not experiencing any lag on my side, and it has been working pretty good for the past half hour. Note in my last post, I spoke to soon, and it was taking 20-30 seconds just to reply to a thread. I guess Jeremy threatened to install Windows on his machines, and next thing you know, everything started to work properly? ;)


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