Author Topic: Server Error Reports  (Read 32668 times)

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Offline gnif

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Server Error Reports
« on: July 31, 2017, 09:53:21 am »
Hi All,

This thread is to create a central place for reporting server errors instead of having a multitude of threads for such things.

Please do NOT reply to this thread unless you have been instructed to by an error message.

This is NOT for general forum usage issues, this thread is for server outages, configuration problems, etc.

Please Note: I provide gratuitous server support to Dave as a way to support this great community, as such my support is best effort. Please be patient, I am subscribed to this thread and will be notified of your posts.

If any of the below hold true DO NOT post a report.
  • Check the next post under this one to see if we have announced an expected outage, or that we are working on the current outage.
  • Check the last post to see if someone else has already very recently reported the outage/error, we would like to avoid 'me too' posts as they pull us away from investigating the issue.
  • Sometimes the error can be cached after we have announced a fix for the issue, please ensure you clear your browser cache and reload the suspect page before reporting.
  • Some errors (5xx errors) will generally affect the entire website, if you find a single page is reporting this error, it is very likely the error is cached, please clear your cache.
If none of the above hold true, please post a detailed error report, the more information the better. Things that help are:
  • The time the error occurred as close to the second as possible. To expedite matters please ensure you convert your time to GMT (UTC).
  • The browser you use, chome/firefox/ie... opera
  • The URL of the page you were accessing
  • If it was submitting a form such as the forum search, updating your profile, etc... please let us know what exactly you were doing that triggered the error

As is the same with EE, the more detail about what led up to the issue, the higher the odds are of finding the cause and correcting it.
« Last Edit: August 04, 2017, 03:24:18 pm by gnif »
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Offline gnif

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Current Server Status
« Reply #1 on: July 31, 2017, 09:54:14 am »
Current Status: OK

29/08/2017: We are performing some changes to how backups are handled which is causing some slowness, please be patient while we get this sorted out.
30/08/2017: The new backup system is in place, but will be running concurrently with the old backup system while it's performance is evaluated.
03/10/2017: The server was restarted to lift some network restrictions that HostGator had in place that were causing issues with the new backup system. Not sure why a restart was required but this is what we were advised.
11/11/2017: We are now on a new backup scheme but are still experiencing the 502 issues, but much less frequently now. There are core dumps from PHP appearing that need to be debugged when I get some time to do so.
« Last Edit: November 11, 2017, 10:11:37 am by gnif »
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Offline MK14

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Re: Server Error Reports
« Reply #2 on: August 04, 2017, 02:13:49 am »
EDIT: already my second attempt at making this report. The first just hanged forever, then said error. (Sorry, I should have noted what the error said).

I've just got and seen the new 502 error message. Which instructed me to write a message here.

Over the last day or so, the EEVblog website, although it works fine about 90% of page loads. Seems to take ages to load, perhaps 10% of the time. Especially when making posts or editing.

I have also had problems with other websites, so the problem could be at my end. About 10% of websites are problematic and take ages to load, then just fail or hang forever.

EDIT: More detailed report:

Time was about 5:13 PM 3/8/17 UK time.

The page I was accessing was:
http://www.eevblog.com/forum/unreadreplies/

The web browser I was using: Google Chrome with Adblock Plus.

It said:

Quote
502 - Bad Gateway
We are having server side difficulties and are working to resolve these issues as fast as we can.

If you are able please report this error to this thread. But before posting please read the instructions carefully!

Thank you for your patience,
Dave & gnif

EDIT3:
When a page has an intermediate error message, BEFORE getting to the page. It looks like this:
Quote
This site can’t be reached

www.eevblog.com’s server DNS address could not be found.
Search Google for eevblog forum chat public transport hell people
ERR_NAME_NOT_RESOLVED

Which MAY be an occasional problem at MY end. Sorry. I have had to change (or consider changing) the default DNS server, previously. Because my ISP one, can be problematic.
« Last Edit: August 04, 2017, 03:47:40 am by MK14 »
 

Offline gnif

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Re: Server Error Reports
« Reply #3 on: August 04, 2017, 03:21:38 pm »
The 502 is certainly server side and not caused by your client. I have noted a few pages with slow load issues I am still looking into, one of which is loading a profile page. In future please post the time in GMT so I don't have to guess at your timezone and try to figure this out (not one of my strong points).
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Online tautech

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Re: Server Error Reports
« Reply #4 on: August 09, 2017, 10:16:34 am »
Blinking forum just apparently ate a post that took me 30 minutes to put together.  :rant:
The display came up with a Cloudfare-EEVblog server page with a red cross on the EEVblog server.
~10am Sydney time.
Chrome

BUT it did post.  :-//
http://www.eevblog.com/forum/testgear/owon-xds3202e-vs-siglent-sds1202x-e/msg1276504/#msg1276504

So false alarm but it did give me a sick feeling.
Back to normal now.
« Last Edit: August 09, 2017, 10:18:08 am by tautech »
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Offline Ian.M

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Re: Server Error Reports
« Reply #5 on: August 29, 2017, 02:17:54 am »
Its the first time I've seen your new Bad Gateway page (since you fixed the session data problem.)
Quote
502 - Bad Gateway

We are having server side difficulties and are working to resolve these issues as fast as we can.

If you are able please report this error to this thread. But before posting please read the instructions carefully!

Thank you for your patience,
Dave & gnif
It was at 28/08/2017 16:09:13 UTC while refreshing http://www.eevblog.com/forum/unread/

Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9.1.17pre) Gecko K-Meleon/1.6.0

The page reloaded correctly a couple of minutes later.

HTH. ;)
 

Online Richard Crowley

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Re: Server Error Reports
« Reply #6 on: August 29, 2017, 03:00:27 pm »
Same here in Oregon, USA 2017-08-29 @ 4:56 UTC
New error message, and then loaded OK a couple minutes later.
 

Offline gnif

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Re: Server Error Reports
« Reply #7 on: August 29, 2017, 09:11:38 pm »
Hi All,

Sorry for the delay in this update, I have setup a new backup system on the server to resolve these issues but it's initial sync has been problematic. Once the intial backup has been completed the old backup will be turned off resolving the recent errors.

For the technical minded:
  • Industry standard backup solutution that provides incremental as well as full backups
  • Databases are hot copied using Percona XtraDB rather then relying on a slow dump from MySQL
  • Backups are perfomed using a pull model to a remote secure server in an undeclosed location
  • Said server is on a private VPN both to protect comms, and to avoid needing to give the server a public IP
HostFission - Full Server Monitoring and Management Solutions.
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Offline Ian.M

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Re: Server Error Reports
« Reply #8 on: August 30, 2017, 06:48:38 pm »
It dit it again, and reload didn't help.  Same browser as before. Time 30/08/2017 08:43:47 UTC.   I *ASSUME* you haven't been able to turn the old backup off yet.

Edit after seeing reply by Gnif:   Sorry!  In my defence 08:43:47 UTC is 09:43:47 GMT which is clearly before 10:00 GMT.   If you want us to ignore errors from 09:30 GMT to 10:30 GMT please say so explicitly.
Edit2: Correction after seeing reply by Salbayeng.  Sorry about the brain-fart re: GMT/BST  *NOT* adding a new post because I don't have another error to report.
« Last Edit: August 31, 2017, 07:15:45 am by Ian.M »
 

Offline gnif

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Re: Server Error Reports
« Reply #9 on: August 30, 2017, 06:49:52 pm »
It dit it again, and reload didn't help.  Same browser as before. Time 30/08/2017 08:43:47 UTC.   I *ASSUME* you haven't been able to turn the old backup off yet.

  • Check the next post under this one to see if we have announced an expected outage, or that we are working on the current outage.
HostFission - Full Server Monitoring and Management Solutions.
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Offline salbayeng

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Re: Server Error Reports
« Reply #10 on: August 31, 2017, 06:38:48 am »
@Ian.M ?que? 
Quote
08:43:47 UTC is 09:43:47 GMT
Both UTC and GMT are the same for most purposes (GMT does not have summer time adjustments, so local time in the UK will be different by an hour in summer).
One adjusts for leap seconds as they occur, the other adjusts for leap seconds at the end of the year.
The UTC time standard is physically located at a naval observatory in the USA.

GPS time is nearly the same, but doesn't correct for leapseconds, it is currently about 20secs away from UTC (however all GPS receivers know the difference and will tell you UTC if asked).
 

Offline edavid

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Re: Server Error Reports
« Reply #11 on: August 31, 2017, 08:30:06 am »
502 error at 2017-08-30 22:21:34 UTC

Firefox

http://www.eevblog.com/forum/unread/

(but it was affecting all pages)
« Last Edit: August 31, 2017, 08:32:00 am by edavid »
 

Offline gnif

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Re: Server Error Reports
« Reply #12 on: August 31, 2017, 09:42:23 am »
502 error at 2017-08-30 22:21:34 UTC

Firefox

http://www.eevblog.com/forum/unread/

(but it was affecting all pages)

Again, check the status post, you can clearly see it is 'WiP" and there is additional information stating the details of the work in progress.
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Offline edavid

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Re: Server Error Reports
« Reply #13 on: August 31, 2017, 10:26:25 am »
Again, check the status post, you can clearly see it is 'WiP" and there is additional information stating the details of the work in progress.

I don't understand, are you saying we should not report errors if the status says "OK - WiP"?
 

Offline gnif

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Re: Server Error Reports
« Reply #14 on: August 31, 2017, 10:51:32 am »
Again, check the status post, you can clearly see it is 'WiP" and there is additional information stating the details of the work in progress.

I don't understand, are you saying we should not report errors if the status says "OK - WiP"?

Quote from: gnif
If any of the below hold true DO NOT post a report.
  • Check the next post under this one to see if we have announced an expected outage, or that we are working on the current outage.

You experienced an outage, but the status states we are working on it and there are dated status updates below it.
HostFission - Full Server Monitoring and Management Solutions.
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I volunteer my time to manage this server, if you would like to support this work I have a patreon here:
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Offline edavid

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Re: Server Error Reports
« Reply #15 on: August 31, 2017, 10:55:52 am »
You experienced an outage, but the status states we are working on it and there are dated status updates below it.

Maybe I'm dense, but that was not at all clear to me.  Why would I think that the fact that you are working on the backup system means I shouldn't report a 502 error?

(Or maybe you could change the 502 error message when you don't want reports.)
 

Offline gnif

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Re: Server Error Reports
« Reply #16 on: August 31, 2017, 11:11:28 am »
You experienced an outage, but the status states we are working on it and there are dated status updates below it.

Maybe I'm dense, but that was not at all clear to me.  Why would I think that the fact that you are working on the backup system means I shouldn't report a 502 error?

(Or maybe you could change the 502 error message when you don't want reports.)

Sorry, I will try to be clearer in the status updates from here on in :)
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Offline RGB255_0_0

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Re: Server Error Reports
« Reply #17 on: September 01, 2017, 02:11:27 am »
You know about the 10AM issues...

FYI, I just had a 502 at 5:08PM BST.
Your toaster just set fire to an African child over TCP.
 

Offline gnif

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Re: Server Error Reports
« Reply #18 on: September 01, 2017, 02:12:39 am »
You know about the 10AM issues...

FYI, I just had a 502 at 5:08PM BST.

Quote from: gnif
Report Status: Outages are to be expected, reports are not needed at this time.
HostFission - Full Server Monitoring and Management Solutions.
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Offline McBryce

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Re: Server Error Reports
« Reply #19 on: September 04, 2017, 09:28:31 pm »
502 error at 13:00 German time.

McBryce.
 

Offline Cerebus

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Re: Server Error Reports
« Reply #20 on: September 29, 2017, 02:16:13 am »
502 for "http://www.eevblog.com/forum/blog/?action=post2;start=100" at 17:15:30 GMT.

Also got a "the last post from your IP address" rate limiting message 2+ minutes after posting this message.
« Last Edit: September 29, 2017, 02:21:57 am by Cerebus »
Anybody got a syringe I can use to squeeze the magic smoke back into this?
 

Offline ChrisLX200

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Re: Server Error Reports
« Reply #21 on: September 30, 2017, 07:59:20 am »
502 - Bad Gateway  10:55pm GMT
 

Offline gnif

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Re: Server Error Reports
« Reply #22 on: October 02, 2017, 08:04:17 pm »
Just a little update, we are still working on fixing a known issue (actually, the same issue). I have been away and have not had the opportunity to perform some changes that are required to proceed with the fix. I should be able to free up time in the next few days and work with Dave to schedule some downtime required to put the new system into effect.
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Offline guenthert

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Re: Server Error Reports
« Reply #23 on: October 09, 2017, 08:48:44 pm »
502 just happened here (Berlin/Germany) around 9:40 zulu.
 

Offline nugglix

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Re: Server Error Reports
« Reply #24 on: October 09, 2017, 08:57:55 pm »
Same for Hamburg/Germany.
 

Offline Cerebus

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Re: Server Error Reports
« Reply #25 on: October 13, 2017, 08:47:21 am »
502, 22:47 BST
Anybody got a syringe I can use to squeeze the magic smoke back into this?
 

Offline T3sl4co1l

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Re: Server Error Reports
« Reply #26 on: October 15, 2017, 10:00:17 am »
Just now.

Tim
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Offline electricForce

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Re: Server Error Reports
« Reply #27 on: October 22, 2017, 10:33:34 am »
Just now. Austin, TX
 

Offline suicidaleggroll

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Re: Server Error Reports
« Reply #28 on: October 24, 2017, 09:45:22 am »
Couple of hours ago from Boulder, CO.  Couldn't get in for 5+ minutes (not sure how long exactly as I stepped away from the computer and just got back).
 

Offline ChrisLX200

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Re: Server Error Reports
« Reply #29 on: November 02, 2017, 09:21:32 am »
Dammit - again just now (10:20pm), and it lost my carefully worded post :(
 

Offline sokoloff

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Re: Server Error Reports
« Reply #30 on: November 03, 2017, 08:54:17 am »
~55 seconds ago, from Cambridge, MA. Multiple 50x errors attempting to access http://www.eevblog.com/forum/unreadreplies/ from both a cookied browser window and a new Incognito browser window.

Probably 15-20 seconds of outages/repeated failures, then it worked.
Was directed here, followed directions (or tried to), so posting.

Chrome Version 61.0.3163.100 (Official Build) (64-bit) on MacOS.
« Last Edit: November 03, 2017, 08:59:51 am by sokoloff »
 

Offline kalel

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Re: Server Error Reports
« Reply #31 on: November 03, 2017, 09:05:14 am »
Just a few min ago, Chrome.
 

Online EEVblog

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Re: Server Error Reports
« Reply #32 on: November 03, 2017, 09:07:17 am »
Dammit - again just now (10:20pm), and it lost my carefully worded post :(

Don't think I've ever lost a post. I just hit the back button and the text is still there in the edit window.
 

Offline ChrisLX200

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Re: Server Error Reports
« Reply #33 on: November 03, 2017, 09:14:50 am »
Quote from: EEVblog on Today at 09:07:17 AM>Quote from: ChrisLX200 on Yesterday at 09:21:32 AM
Dammit - again just now (10:20pm), and it lost my carefully worded post :(

Don't think I've ever lost a post. I just hit the back button and the text is still there in the edit window.



Nope, it wasn't. The back button took me to an empty editing window (well, actually a quote but my added text was missing).
 

Online Richard Crowley

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Re: Server Error Reports
« Reply #34 on: November 03, 2017, 10:41:02 am »
Don't think I've ever lost a post. I just hit the back button and the text is still there in the edit window.
Yeah, that works sometimes.  It depends on when/where the error happens.
I have seen it happen both ways.  Although much more often on GearSlutz than here in EEVblog.
Their server (s?)are chronically slow. Sometimes so slow you wonder whether they are even "up".
 

Offline bitseeker

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Re: Server Error Reports
« Reply #35 on: November 05, 2017, 04:24:15 am »
The link element for the forum's RSS feed (in the <head>) points to a URL that returns 403 Forbidden.

<link rel="alternate" type="application/rss+xml" title="EEVblog Electronics Community Forum - RSS" href="http://www.eevblog.com/forum/.xml/?type=rss" />
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Offline Muttley Snickers

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Re: Server Error Reports
« Reply #36 on: November 06, 2017, 02:43:26 pm »
502 - Bad Gateway

At 14:25 AEDT or 03:25 GMT on 06/11/17 the forum main page dropped out and then returned to normal operation after about a minute or so with the assistance of the refresh button, as this interruption did not correspond with the scheduled regular backup time I thought it was worth a mention.   
 

Offline hermit

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Re: Server Error Reports
« Reply #37 on: November 08, 2017, 09:03:07 am »
I just got back in after a brief interruption.  Seems to happen once a day for the past few.  4:45 Eastern.
 

Offline gnif

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Re: Server Error Reports
« Reply #38 on: November 11, 2017, 10:09:56 am »
502 - Bad Gateway

At 14:25 AEDT or 03:25 GMT on 06/11/17 the forum main page dropped out and then returned to normal operation after about a minute or so with the assistance of the refresh button, as this interruption did not correspond with the scheduled regular backup time I thought it was worth a mention.

I thought it wasn't even supposed to happen with a regular scheduled backup anymore.

Correct, there is still a very intermittent fault, each problem we fix exposes another one. I am seeing core dumps from PHP now, I just have not had the time to attach a debugger to one yet and see what is going on.
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Offline kulla

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Re: Server Error Reports
« Reply #39 on: November 12, 2017, 01:53:56 am »
You might as well try to enable slow log for php-fpm for requests that take lot of time and time out in the end, requests that need more than 10s and see what you get and why
 

Offline gnif

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Re: Server Error Reports
« Reply #40 on: November 12, 2017, 02:27:05 am »
You might as well try to enable slow log for php-fpm for requests that take lot of time and time out in the end, requests that need more than 10s and see what you get and why

It is enabled, we are not seeing slow requests anymore, its a backend crash.
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Offline SkrillBill

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Re: Server Error Reports
« Reply #41 on: November 21, 2017, 08:56:30 am »
Error 502 just happened to me. Error instructed me to post in this thread. See attached.


 

Online Mr. Scram

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Re: Server Error Reports
« Reply #42 on: November 21, 2017, 09:10:31 am »
I've experienced intermittent 502 server errors for the past few weeks, after they've been absent for a while. The most recent ones were just now, about 10-20 minutes ago. They tend to be on all pages, and typically last for about 1-3 minutes.
 

Offline gnif

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Re: Server Error Reports
« Reply #43 on: November 21, 2017, 09:17:01 am »
Thanks guys, I will see if I can trace down the cause. It's great there are getting fewer, it makes it easier to find the trigger in the logs :)
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Online Mr. Scram

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Re: Server Error Reports
« Reply #44 on: November 21, 2017, 09:28:56 am »
Thanks guys, I will see if I can trace down the cause. It's great there are getting fewer, it makes it easier to find the trigger in the logs :)
Yes, I though you had the problem solved for a while. It's progress nonetheless :)
 

Offline SkrillBill

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Re: Server Error Reports
« Reply #45 on: November 22, 2017, 09:10:14 am »
Recieved error 502 while browsing the open source hardware section of the forum. Stayed that way for 3-5 minutes. I tried going to the main website (eevblog.ocm) and was greeted by "Error establishing database connection".

Happened around 5:04pm Eastern

 

Offline gnif

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Re: Server Error Reports
« Reply #46 on: November 22, 2017, 10:00:37 am »
Recieved error 502 while browsing the open source hardware section of the forum. Stayed that way for 3-5 minutes. I tried going to the main website (eevblog.ocm) and was greeted by "Error establishing database connection".

Happened around 5:04pm Eastern

Thanks, that a new one.
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Offline SkrillBill

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Re: Server Error Reports
« Reply #47 on: November 23, 2017, 09:05:17 am »
Recieved error 502 while browsing the open source hardware section of the forum. Stayed that way for 3-5 minutes. I tried going to the main website (eevblog.ocm) and was greeted by "Error establishing database connection".

Happened around 5:04pm Eastern

Same thing happened again, 5:01pm eastern.
502 Error follows by "error establishing a database connection" on the main site.
 

Offline MK14

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Re: Server Error Reports
« Reply #48 on: November 23, 2017, 09:08:42 am »
Recieved error 502 while browsing the open source hardware section of the forum. Stayed that way for 3-5 minutes. I tried going to the main website (eevblog.ocm) and was greeted by "Error establishing database connection".

Happened around 5:04pm Eastern

Same thing happened again, 5:01pm eastern.
502 Error follows by "error establishing a database connection" on the main site.

I also had error 502 (lasting for a few minutes) and "error establishing a database connection" on the main site.".

A few minutes ago. It is now 10:07 PM UK time.

At the start of the difficulties, the forum was failing to supply me with pictures. Then a minute or so later, I got the 502 errors. (Probably because I tried to reload the page, because of the missing pictures).
 

Offline Gyro

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Re: Server Error Reports
« Reply #49 on: November 23, 2017, 09:09:29 am »
Error 524 Ray ID: 3c1f2717f9e435a8 • 2017-11-22 22:00:34 UTC
A timeout occurred

Followed by repeated 502 errors.

I seem to run into a block of 502 errors every day at some arbitrary time between 21.40 and 22.30 BST.
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Offline bitseeker

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Re: Server Error Reports
« Reply #50 on: November 23, 2017, 09:10:36 am »
I got hit by the 502s on the forum at about the same time as well.
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Offline Muttley Snickers

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Re: Server Error Reports
« Reply #51 on: November 23, 2017, 09:33:43 am »
502 - Bad Gateway

At 09:00 AEDT or 22:00 GMT on 23/11/17 the forum main page dropped out and then returned to normal operation after about two minutes or so with the assistance of the refresh button, this interruption appeared to correspond with the scheduled regular backup time but it was mentioned in a recent post that these events should no longer be occurring, I do not know whether events around this time window are to be ignored or informed.
 

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Re: Server Error Reports
« Reply #52 on: November 26, 2017, 11:35:58 am »
For a few minutes ~1.23PM NZ (11.23AM Sydney) time all attempted contact was 502's.
Came right on its own.
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Offline ez24

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Re: Server Error Reports
« Reply #53 on: November 26, 2017, 11:38:13 am »
Maybe caused by a power overload, 121 gigawatts ?
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Offline gnif

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Re: Server Error Reports
« Reply #54 on: November 26, 2017, 12:20:11 pm »
Maybe caused by a power overload, 121 gigawatts ?

It certainly was, this time it wasn't a server issue as such, it was simply an inrush of hits to the shop to buy meters.
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Offline bitseeker

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Re: Server Error Reports
« Reply #55 on: November 26, 2017, 02:29:10 pm »
Woah, EEVblog suffered from the EEVblog effect.
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Offline kulla

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Re: Server Error Reports
« Reply #56 on: November 28, 2017, 09:13:28 am »
Had 502 past few minutes  :-\
 

Offline ChrisLX200

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Re: Server Error Reports
« Reply #57 on: November 28, 2017, 09:17:43 am »
  Error 502 Ray ID: 3c4867e87c146ab5 • 2017-11-27 22:08:34 UTC  Bad gateway
 

Offline MK14

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Re: Server Error Reports
« Reply #58 on: November 29, 2017, 08:52:55 am »
I got error 502, for around 4 to 4.5+ minutes.
It is now 9:52 PM UK time.

(yesterday, at around this time, maybe 10:18 PM ?, I also had error 502 for a couple of minutes or so)

Then a few seconds before it restarted ok, I got this:

Quote
Connection Problems

Sorry, SMF was unable to connect to the database. This may be caused by the server being busy. Please try again later.
 

Offline kalel

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Re: Server Error Reports
« Reply #59 on: December 04, 2017, 06:11:17 pm »
Quote
Error establishing a database connection

Just a few minutes ago
 

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Re: Server Error Reports
« Reply #60 on: December 05, 2017, 09:02:02 am »
For few minutes 10.55am till ~10.59am (8.55 am Sydney time) 502's
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Offline jgalak

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Re: Server Error Reports
« Reply #61 on: December 05, 2017, 09:02:55 am »
Just got an error message saying:

Code: [Select]
502 - Bad Gateway

We are having server side difficulties and are working to resolve these issues as fast as we can.

If you are able please report this error to this thread. But before posting please read the instructions carefully!

Thank you for your patience,
Dave & gnif

Seemed to last about 5 minutes.

Occurred on these URLs:

http://www.eevblog.com/forum/testgear/siglent-they-filed-a-'wrongful-trademark-claim'/325/
http://www.eevblog.com/forum/chat/website-error-reports/

Connection from the US, Optimum ISP, Windows 7 64bit, Firefox 52.4.0 (32-bit).

Time: about 21:58 UTC, lasted less than 5 minutes before started working again.
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Offline xrunner

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Re: Server Error Reports
« Reply #62 on: December 07, 2017, 10:19:50 am »
Several times today -

Quote
502 - Bad Gateway

We are having server side difficulties and are working to resolve these issues as fast as we can.

If you are able please report this error to this thread. But before posting please read the instructions carefully!

Thank you for your patience,
Dave & gnif
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Re: Server Error Reports
« Reply #63 on: December 07, 2017, 01:14:11 pm »
I have been getting persistent errors since joining up. I am assuming you have cleaned out the error logs on SMF? It doesn't like being large. So rather than been strictly a server issue it may also be a backend SMF issue contributing to the server load? There is also a few ways to then use the server log to debug any SMF issues.

Also I haven't found a thread related to forum setup ideas and while I understand this forum is bare bones SMF this Mod giving some simple up down navigation buttons is worth adding. I have used it in a couple of forum builds/rebuilds in the past. The Mod author is also good at keeping it updated to current versions too. https://custom.simplemachines.org/mods/index.php?mod=3433
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Offline kulla

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Re: Server Error Reports
« Reply #64 on: December 07, 2017, 06:26:51 pm »
Got 502 from cloudflare right now.

Error 502 Ray ID: 3c95c0dc2b518613 • 2017-12-07 07:25:51 UTC
Bad gateway
 

Offline PA0PBZ

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Re: Server Error Reports
« Reply #65 on: December 09, 2017, 08:51:47 am »
Still occasionally running into the (I think) backup problem, but it's early today. Happened about 4 minutes ago (21:45 UTC), normally it happens around 10 minutes from now (22:00 UTC).

502 - Bad Gateway
We are having server side difficulties and are working to resolve these issues as fast as we can.

If you are able please report this error to this thread. But before posting please read the instructions carefully!

Keyboard error: Press F1 to continue.
 

Offline Yansi

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Re: Server Error Reports
« Reply #66 on: December 29, 2017, 08:56:48 am »
Err 502  again on Dec 28, 2017,  around 21:45 UTC. Was in error for quite some minutes.
Accessing: http://www.eevblog.com/forum/unreadreplies/

(but from the quite often seen errors 502 I get here, I observed it is irrelevant of what browser, device or page. The server just spews E502 from time to time - or maybe quite often.)



 

Offline ChrisLX200

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Re: Server Error Reports
« Reply #67 on: December 29, 2017, 09:03:24 am »
Same here - 502. Do you still want these reports?
 

Offline Yansi

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Re: Server Error Reports
« Reply #68 on: December 30, 2017, 08:51:27 am »
Err 502  yet again on Dec 29, 2017,  around 21:45 UTC. Was in error for quite some minutes.
Accessing: http://www.eevblog.com/forum/unreadreplies/

(but from the quite often seen errors 502 I get here, I observed it is irrelevant of what browser, device or page. The server just spews E502 from time to time - or maybe quite often.)

//It seems like I am repeating myself, but so is the error.
 

Online Mr. Scram

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Re: Server Error Reports
« Reply #69 on: December 30, 2017, 08:53:23 am »
I just had a bunch of 502s, about 5-10 minutes ago, on all pages tried.
 

Offline ez24

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Re: Server Error Reports
« Reply #70 on: December 30, 2017, 08:59:02 am »
What I just learned is to copy before Posting.   I worked 1/2 hour on a reply and lost it.  This is the second time in the last few days.  Seems this is becoming a regular thing.
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Offline Yansi

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Re: Server Error Reports
« Reply #71 on: December 30, 2017, 09:00:23 am »
Yeah, I've already noticed, the E502 is repeated every day at least at 21:45 UTC.
 

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Re: Server Error Reports
« Reply #72 on: December 31, 2017, 10:47:16 am »
~10.42am Sydney time. Any pages tried. Lasted less than 5 mins.

Sort of every other day there are 502's.
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Online Mr. Scram

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Re: Server Error Reports
« Reply #73 on: December 31, 2017, 11:11:06 am »
~10.42am Sydney time. Any pages tried. Lasted less than 5 mins.

Sort of every other day there are 502's.
Same here.
 

Offline Yansi

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Re: Server Error Reports
« Reply #74 on: January 03, 2018, 08:50:15 am »
Today the same again. As regularly 21:45 UTC, the server goes bust for about 3-5 mins.
 

Offline PA0PBZ

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Re: Server Error Reports
« Reply #75 on: January 03, 2018, 09:34:42 am »
Today the same again. As regularly 21:45 UTC, the server goes bust for about 3-5 mins.

Yes, same here.
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Offline diynoise

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Re: Server Error Reports
« Reply #76 on: January 13, 2018, 10:54:59 pm »
Bad gateway errors on the whole forum for 5-10 minutes (not sure how many exactly).

The time the error occurred as close to the second as possible: 11:40 UTC (~15 mins ago)
The browser you use: chrome
The URL of the page you were accessing: various threads including this one
please let us know what exactly you were doing that triggered the error: just browsing, no action
 
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Offline Yansi

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Re: Server Error Reports
« Reply #77 on: January 14, 2018, 12:03:53 am »
Bad gateway errors on the whole forum for 5-10 minutes (not sure how many exactly).

The time the error occurred as close to the second as possible: 11:40 UTC (~15 mins ago)
The browser you use: chrome
The URL of the page you were accessing: various threads including this one
please let us know what exactly you were doing that triggered the error: just browsing, no action

11:43 UTC here.
Browser and URL doesn't matter.
 

Offline Yansi

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Re: Server Error Reports
« Reply #78 on: January 16, 2018, 08:42:36 am »
21:27 UTC again, short duration of 502 for a couple of minutes.
 

Offline ez24

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Re: Server Error Reports
« Reply #79 on: January 16, 2018, 09:09:04 am »
I wish the admin would change the error message to something like:

"Routine Outage - Back within a couple of minutes"

The current error message throws me every time.
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Offline Yansi

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Re: Server Error Reports
« Reply #80 on: January 18, 2018, 08:53:47 am »
Our favorite regular 21:45 UTC outage is here again.  ^-^
 

Offline PA0PBZ

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Re: Server Error Reports
« Reply #81 on: January 25, 2018, 08:41:20 am »
Our favorite regular 21:45 UTC outage is here again.  ^-^

21:35 UTC today, to make It a bit more exiting I guess....
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Offline ez24

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Re: Server Error Reports
« Reply #82 on: January 25, 2018, 08:55:22 am »
Our favorite regular 21:45 UTC outage is here again.  ^-^
This should be the error message  :-DD

I forgot (to copy) and lost a long post  |O
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Offline rhb

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Re: Server Error Reports
« Reply #83 on: January 26, 2018, 01:42:32 am »
I just got the message.  Though this time I was able to get in.
 

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Re: Server Error Reports
« Reply #84 on: January 26, 2018, 02:22:08 am »
<< ez24: Just hit "back" in the browser to retrieve the text of the message.

Got the error right now, 15:20 UTC. Server becoming slow responding in the last hour.

Just got the error when tried to send this message too.
 
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Offline Magnificent Bastard

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Re: Server Error Reports
« Reply #85 on: January 26, 2018, 04:07:08 am »
Got a 503 Bad Gateway when trying to go to this thread/message:

http://www.eevblog.com/forum/projects/has-anybody-built-their-own-mass-spectrometer-before/msg1409645/?topicseen#msg1409645

Other threads appear to be OK.

-MB
 

Offline gnif

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Re: Server Error Reports
« Reply #86 on: January 26, 2018, 04:12:57 am »
There was an incident of server overload, a script was hammering MySQL. I don't have time to look into it right now unfortunately, my office took a lightning strike that fed into an Ethernet cable... lots of dead Ethernet gear and NICs.

Correction The server was under a DDoS attack by a cluster of servers trying to overload the website by flooding posts to the search input. The attack has been blocked.
« Last Edit: January 26, 2018, 04:53:21 am by gnif »
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Offline Yansi

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Re: Server Error Reports
« Reply #87 on: February 01, 2018, 08:48:39 am »
Server seems to be overloaded and under ddos attack quite regularly. Every day. Just got the famous 21:45UTC gateway error again.
 
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Offline Muttley Snickers

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Re: Server Error Reports
« Reply #88 on: February 25, 2018, 10:43:37 am »
Whilst returning to the main page today at 10:29 AEDT or 23:29 GMT I received a 502 bad gateway message, it only lasted for a minute or so then after a refresh returned to normal, it might have just been a backup or restart.
 

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Re: Server Error Reports
« Reply #89 on: February 25, 2018, 11:47:59 am »
Been a bit flakey for the last couple of days. Maybe Batteroo's YouTube dislike campaign extends to ddos  :--
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Offline PA0PBZ

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Re: Server Error Reports
« Reply #90 on: February 27, 2018, 08:41:51 am »
21:38 GMT: 502 bad gateway.
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Offline paulca

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Re: Server Error Reports
« Reply #91 on: March 10, 2018, 08:46:20 am »
It seems to go dead for about 5 minutes almost every evening around 21:30 GMT.  Is it a windows server on a daily reboot or is the a backup that runs which takes the site off line?  Not complaining, just curious.
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Offline gnif

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Re: Server Error Reports
« Reply #92 on: March 19, 2018, 01:46:23 pm »
I apologize for the outage that occurred during Dave's Live Stream just now. This server came under heavy DDoS attack from a range of addresses just as Dave started to attempt to perform the draw. This was not an inrush of viewers, I had to block 50 IP addresses, most running at over 100 requests/sec, a few of them over 200/sec, and one at over 1000/sec.

173.167.206.137 was the heavy hitter at 1000/sec.

We are behind CloudFlare which is supposed to block this kind of thing, but it just proxied it all through... what a Joke.
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Offline hermit

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Re: Server Error Reports
« Reply #93 on: March 19, 2018, 02:12:10 pm »
A subset of Comcast.  Probably one of the business accounts.  I'm sure a complaint to Comcast will bring swift results.  ::)
 

Offline bitseeker

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Re: Server Error Reports
« Reply #94 on: March 19, 2018, 02:13:19 pm »
Yep, a static Comcast Business IP address.
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Offline gnif

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Re: Server Error Reports
« Reply #95 on: March 19, 2018, 02:14:23 pm »
Comcast has been contacted. There is clearly a remote viewer sitting on that IP, looks very old and unmaintained, likely compromised.
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Offline gnif

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Re: Server Error Reports
« Reply #96 on: April 02, 2018, 04:59:47 am »
Just a notice to everyone

There will be a short database outage in a few minutes so I can change a few settings in preparation of the server move.

This does not mean the new server's are ready, I simply need to make a change so I can keep them in sync during the testing phase.

Edit: Done
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Offline David Chamberlain

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Re: Server Error Reports
« Reply #97 on: April 14, 2018, 07:37:32 am »
Around Friday, 13 April 2018 21:25:00 UTC
502 - Bad Gateway
http://www.eevblog.com/forum/projects/
http://www.eevblog.com/forum/
Browser : Chrome 65 on Android.

Was like that when i checked for about that time and then came right after a few minutes.
 

Offline JS

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Re: Server Error Reports
« Reply #98 on: April 20, 2018, 07:30:09 am »
502

Trying to post a reply 2 minutes ago to this post

http://www.eevblog.com/forum/projects/help-with-usb-sound-card-oscilloscope-108256/

then again trying to get to this topic, from the error link.

I'm using saffari 11.0.2

JS
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Offline geekGee

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Re: Server Error Reports
« Reply #99 on: April 29, 2018, 05:57:01 am »
At the time of this reply, I am getting a blank page with /forum/index.php containing URLs.  I've tried a few web browsers and wget is downloading a zero sized file.

I had to navigate to this topic using a link to another then used search.
 

Offline PA0PBZ

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Re: Server Error Reports
« Reply #100 on: April 29, 2018, 06:02:08 am »
Yes, something is seriously broken, most links just return a blank page  :--
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Offline ez24

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Re: Server Error Reports
« Reply #101 on: April 29, 2018, 06:33:41 am »
Yes, something is seriously broken, most links just return a blank page  :--

whew - I thought it was me  :-DD
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Offline StillTrying

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Re: Server Error Reports
« Reply #102 on: April 29, 2018, 07:35:30 am »
I'm having to navigate using the small 'Jump to' drop down box.
 

Offline ez24

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Re: Server Error Reports
« Reply #103 on: April 29, 2018, 08:26:15 am »
Here is the link that does not work for me, "Show unread posts since last visit." -->

http://www.eevblog.com/forum/unread/

Just returns a blank screen  ie no error messages
« Last Edit: April 29, 2018, 08:28:13 am by ez24 »
YouTube and Website Electronic Resources ------>  http://www.eevblog.com/forum/other-blog-specific/a/msg1341166/#msg1341166
 

Online Mr. Scram

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Re: Server Error Reports
« Reply #104 on: April 29, 2018, 08:39:28 am »
Here is the link that does not work for me, "Show unread posts since last visit." -->

http://www.eevblog.com/forum/unread/

Just returns a blank screen  ie no error messages
Funny, that's one of the ones that does work for me.
 

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Re: Server Error Reports
« Reply #105 on: April 29, 2018, 08:43:47 am »
Here is the link that does not work for me, "Show unread posts since last visit." -->

http://www.eevblog.com/forum/unread/

Just returns a blank screen  ie no error messages
All working fine now here with Chrome.
ez, do a hard page refresh with F5.
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Online richnormand

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Re: Server Error Reports
« Reply #106 on: April 29, 2018, 08:48:22 am »
All I got hitting "forum" is a blank page. A hard reset page F5 did not do anything.
No timeout either it looked like the white blank page was the content...

Rebooted the computer and tried again: same thing.

Fine now.



 

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Re: Server Error Reports
« Reply #107 on: April 29, 2018, 08:53:39 am »
All I got hitting "forum" is a blank page. A hard reset page F5 did not do anything.
No timeout either it looked like the white blank page was the content...

Rebooted the computer and tried again: same thing.

Fine now.
Crazy.  :-//

It was shite a couple of hours back here but seems to have come right for me.
Shut my PC down for a change last night but it was all problems here first thing. Anything with .php as mentioned before gave a blank white screen
Came right all by itself ~30 mins ago.
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Offline hermit

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Re: Server Error Reports
« Reply #108 on: April 29, 2018, 09:22:42 am »
@gnif  I thought I'd wait it out.  Unread threads finally worked but only on the first page.  Hit next and got a blank screen.
 
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Offline edpalmer42

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Re: Server Error Reports
« Reply #109 on: April 29, 2018, 09:39:14 am »
Somebody's got to say it.....

Should we change servers???  >:D >:D >:D :-DD :horse:

Ed
 

Offline AlfBaz

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Re: Server Error Reports
« Reply #110 on: April 29, 2018, 09:40:12 am »
firefox here on windows, unread posts since last visit usually returns many pages, lately Im getting only 1 or two posts. At the same time on my phone however, I get the usual number of unread posts
 

Offline AlfBaz

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Re: Server Error Reports
« Reply #111 on: April 29, 2018, 11:48:32 am »
Just fired up ff and the unread posts is full again :-//
 

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Re: Server Error Reports
« Reply #112 on: April 29, 2018, 01:12:53 pm »
I've been checking out a few things and found one that serves me a blank page...
http://www.eevblog.com/forum/dodgy-technology/
I can get to the latest updated thread in that board, but not to the thread list.

I've checked this 3 or 4 times while browsing the forum - and it has not changed over all that time (about 2 hours, on and off).   https or http makes no difference.
 

Offline amyk

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Re: Server Error Reports
« Reply #113 on: April 29, 2018, 02:33:48 pm »
I've been checking out a few things and found one that serves me a blank page...
http://www.eevblog.com/forum/dodgy-technology/
I can get to the latest updated thread in that board, but not to the thread list.

I've checked this 3 or 4 times while browsing the forum - and it has not changed over all that time (about 2 hours, on and off).   https or http makes no difference.
Same here, blank page but no indication of error from server (response is 200 OK, but there's no content.)
 

Offline Cyberdragon

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Re: Server Error Reports
« Reply #114 on: April 29, 2018, 04:12:02 pm »
The link to dodgy technology doesn't work for me.

Not that I really want it fixed. I'd never have noticed normally. But in the interests in getting everything sorted asap I can confirm I also get a blank page.

This appears to be the only thing still down, though I haven't tried absolutely everything.

I'll just have to post my rant in General. >:D
*BZZZZZZAAAAAP*
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Offline ModemHead

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Re: Server Error Reports
« Reply #115 on: April 29, 2018, 11:36:18 pm »
When I "show unread posts since last visit" I get 4 pages.  Pages 1-3 are fine but 4 (or hitting "Next" on page 3) serves me an empty page (status 200, 0 bytes) just like the rest of you are describing.  :-//
 

Offline ModemHead

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Re: Server Error Reports
« Reply #116 on: April 30, 2018, 12:02:24 am »
When I "show unread posts since last visit" I get 4 pages.  Pages 1-3 are fine but 4 (or hitting "Next" on page 3) serves me an empty page (status 200, 0 bytes) just like the rest of you are describing.  :-//

I haven't noticed that although I tend to click on the numbers in preference to clicking "next". So it appears to be working correctly to me. I'll check tomorrow when the unreads posts have had a chance to accumulate to 4 pages.
I thought I would fool it by going to page 3 of 4 and selecting and marking all the topics read so that the older stuff would move up.  Nope, last page is blank.  And now that I've gone through the 3 pages that I could see and marked them all as read, clicking "show unread posts since last visit" serves me a blank page.  Weird.
 

Offline hermit

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Re: Server Error Reports
« Reply #117 on: April 30, 2018, 02:26:51 am »
When I "show unread posts since last visit" I get 4 pages.  Pages 1-3 are fine but 4 (or hitting "Next" on page 3) serves me an empty page (status 200, 0 bytes) just like the rest of you are describing.  :-//
Same here.  I've felt that this 'feature' most of the time served up way too much in terms of how far back it went anyhow.  In this case page 5 would take me back past stuff that are easily outside the range of my last visit time.
 

Offline 2N3055

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Re: Server Error Reports
« Reply #118 on: April 30, 2018, 03:39:53 am »
Last page is always blank.. So if you have only few items on first page it is also your last and you don't see it either.....
That is very recent, I noticed it today..

 

Online richnormand

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Re: Server Error Reports
« Reply #119 on: April 30, 2018, 05:39:00 am »
As of this morning and later in the afternoon today. Two different computers.
This page shows as blank for me:
http://www.eevblog.com/forum/dodgy-technology/

How ironic....
Rest of forum worked as expected....





« Last Edit: April 30, 2018, 05:41:03 am by richnormand »
 

Offline jmelson

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Re: Server Error Reports
« Reply #120 on: April 30, 2018, 12:28:02 pm »
The dodgy-technology main-level forum has been giving a blank page for about 24 hours.

Jon
 

Offline hermit

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Re: Server Error Reports
« Reply #121 on: April 30, 2018, 02:49:53 pm »
Unread posts has been working for me for the past few hours it seems.  Worked before I went for my run and worked when I got back.  No more blank page.
 

Offline nugglix

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Re: Server Error Reports
« Reply #122 on: April 30, 2018, 03:12:41 pm »
Same here in Europe.

Would really like to know what caused that weird behavior.
 

Offline bitwelder

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Re: Server Error Reports
« Reply #123 on: April 30, 2018, 11:39:02 pm »
As of this morning and later in the afternoon today. Two different computers.
This page shows as blank for me:
http://www.eevblog.com/forum/dodgy-technology/

How ironic....
Rest of forum worked as expected....
Same here.
Interesting that although I get a blank page if I try to access the dodgy-technology forum area,
I can correctly read the thread pointed by the 'Last post' for the same area, as indexed by the main EEVblog forum page

EDIT: and also access the other 'dodgy' threads via the 'previous' and 'next' buttons on the top and bottom right side
« Last Edit: April 30, 2018, 11:41:50 pm by bitwelder »
 

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Re: Server Error Reports
« Reply #124 on: May 01, 2018, 05:55:03 pm »
Hi gnif
Search tab result problems (didn't try the text box)

Normal search, not Advanced search.
Search for : transformer winding

Scroll through P1
Hit Next or P2 and the page defaults to a Revise Search page, not the next page as one expects.
Similar results with the page menu at either top or bottom of page. Got the 2nd page once only but never a further page.

Chrome browser.
SMF bug or server bug ?
TIA.
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Offline xrunner

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Re: Server Error Reports
« Reply #125 on: May 02, 2018, 10:16:21 pm »
Hi gnif
Search tab result problems (didn't try the text box)

Normal search, not Advanced search.
Search for : transformer winding

Scroll through P1
Hit Next or P2 and the page defaults to a Revise Search page, not the next page as one expects.
Similar results with the page menu at either top or bottom of page. Got the 2nd page once only but never a further page.

FYI, tried it - Doesn't happen with FF.
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Offline clucas

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Re: Server Error Reports
« Reply #126 on: May 03, 2018, 10:08:11 am »
my apologies if this is in the wrong thread but when I click on the 'Dodgy Technology' thread, the page is blank. This has been happening for about a week or so. Is the thread still active?
 

Online basinstreetdesign

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Re: Server Error Reports
« Reply #127 on: May 03, 2018, 10:32:27 am »
The dodgy-technology main-level forum has been giving a blank page for about 24 hours.

Jon

Me too, still.
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Online Brumby

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Re: Server Error Reports
« Reply #128 on: May 03, 2018, 11:56:28 am »
my apologies if this is in the wrong thread but when I click on the 'Dodgy Technology' thread, the page is blank. This has been happening for about a week or so. Is the thread still active?
The dodgy-technology main-level forum has been giving a blank page for about 24 hours.

Jon

Me too, still.

Yes.  It's a known problem.

The threads can still be accessed directly by going through a search, but we can't get the topic list up.
 

Offline bitseeker

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Re: Server Error Reports
« Reply #129 on: May 04, 2018, 03:44:48 pm »
Oh, the irony.
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Online BravoV

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Re: Server Error Reports
« Reply #130 on: May 04, 2018, 04:00:13 pm »
I access this forum through various places PCs, tablet,smartphone and notebook, before the upgrade, the forum remembered and maintain the exact list of unread posts or my subscribed threads at every devices I used.

Now, it lost it, I get different list on different devices.

Online Brumby

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Re: Server Error Reports
« Reply #131 on: May 05, 2018, 06:44:25 pm »
my apologies if this is in the wrong thread but when I click on the 'Dodgy Technology' thread, the page is blank. This has been happening for about a week or so. Is the thread still active?

It's back.


I don't know if that's a good thing or not.....
 

Offline gnif

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Re: Server Error Reports
« Reply #132 on: May 05, 2018, 06:52:18 pm »
I fixed it, took a few hours of debugging. The seo friendly plugin doesn't support UTF-8 properly and was trying to insert a duplicated record into a table inside an output buffer callback, as such a white page was generated with no errors, nor debug logging of the fault.

The solution was to strip all non ASCII 7-bit character from SEO urls.
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Offline Towger

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Re: Server Error Reports
« Reply #133 on: May 05, 2018, 07:16:03 pm »
On Tapatalk the form names are no longer displayed, only the descriptions.

 

Offline gnif

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Re: Server Error Reports
« Reply #134 on: May 05, 2018, 07:26:17 pm »
On Tapatalk the form names are no longer displayed, only the descriptions.



When did this start?
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Offline Towger

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Re: Server Error Reports
« Reply #135 on: May 05, 2018, 07:28:29 pm »
Not sure, only noticed it today.
 

Offline jmelson

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Re: Server Error Reports
« Reply #136 on: May 07, 2018, 11:59:51 am »
I fixed it, took a few hours of debugging. The seo friendly plugin doesn't support UTF-8 properly and was trying to insert a duplicated record into a table inside an output buffer callback, as such a white page was generated with no errors, nor debug logging of the fault.

The solution was to strip all non ASCII 7-bit character from SEO urls.
Wow, glad somebody understands all this php and SQL stuff.  I run a web store, and have a very rudimentary understanding of it, but just enough to be dangerous.

Thanks for fixing that forum/thread!

Jon
 

Offline bitseeker

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Re: Server Error Reports
« Reply #137 on: May 07, 2018, 05:02:36 pm »
I fixed it, took a few hours of debugging. The seo friendly plugin doesn't support UTF-8 properly and was trying to insert a duplicated record into a table inside an output buffer callback, as such a white page was generated with no errors, nor debug logging of the fault.

The solution was to strip all non ASCII 7-bit character from SEO urls.

Wow, not a sysadmin friendly plugin. Thanks for tracking that down and sorting it out, gnif.
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Online richnormand

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Re: Server Error Reports
« Reply #138 on: June 19, 2018, 08:41:19 am »
For some reason the main site and the forum are extremely slow with waits to close to half a minute to timeouts today. Test with other sites are all OK.
I go through the Toronto hub I think. Will try VPN to US site and see.
 

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Re: Server Error Reports
« Reply #139 on: June 19, 2018, 08:41:38 am »
Not so much errors gnif but at times the forum is very slow to refresh, accept a post or just general viewing.
Might need a  :-/O somewhere.
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Offline gnif

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Re: Server Error Reports
« Reply #140 on: June 19, 2018, 08:55:42 am »
There is currently an outage with one of the two servers, looks like a bad route which I am investigating.
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Offline gnif

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Re: Server Error Reports
« Reply #141 on: June 19, 2018, 09:13:25 am »
There is currently an outage with one of the two servers, looks like a bad route which I am investigating.

Fixed, we are now back at full capacity. One of the servers had been null routed as a bug in SMF4M was being abused to proxy redirects to external websites.
The site became slow because both servers could still see and talk to each other, as such they had no way to determine that one had lost connectivity. Traffic had to timeout before it would be sent to the other server, so no outage, just slow.
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Re: Server Error Reports
« Reply #142 on: June 19, 2018, 12:05:10 pm »
There is currently an outage with one of the two servers, looks like a bad route which I am investigating.

Fixed, we are now back at full capacity. One of the servers had been null routed as a bug in SMF4M was being abused to proxy redirects to external websites.
The site became slow because both servers could still see and talk to each other, as such they had no way to determine that one had lost connectivity. Traffic had to timeout before it would be sent to the other server, so no outage, just slow.

Thanks gnif
So that's a win already for the dual server redundancy. Albeit in the weird way made it slower than it otherwise wouldn't have been. But better slow than offline.
 

Offline gnif

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Re: Server Error Reports
« Reply #143 on: June 19, 2018, 12:10:16 pm »
There is currently an outage with one of the two servers, looks like a bad route which I am investigating.

Fixed, we are now back at full capacity. One of the servers had been null routed as a bug in SMF4M was being abused to proxy redirects to external websites.
The site became slow because both servers could still see and talk to each other, as such they had no way to determine that one had lost connectivity. Traffic had to timeout before it would be sent to the other server, so no outage, just slow.

Thanks gnif
So that's a win already for the dual server redundancy. Albeit in the weird way made it slower than it otherwise wouldn't have been. But better slow than offline.

Normally with a server outage the up server will see the other server is no longer responding and will take over it's duties, but because the data center had null routed the external traffic, the two servers could not see there was a fault condition. In what would be considered a normal outage there would be no visible performance impact on the hosting.
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Offline hermit

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Re: Server Error Reports
« Reply #144 on: June 19, 2018, 12:17:07 pm »
I couldn't get through at all but when I went to an external site it showed some places getting through and others not.  Seemed to be no rhyme or reason to physical locations worldwide that connected and didn't so I just waited it out.
 

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Re: Server Error Reports
« Reply #145 on: June 19, 2018, 12:38:49 pm »
Normally with a server outage the up server will see the other server is no longer responding and will take over it's duties, but because the data center had null routed the external traffic, the two servers could not see there was a fault condition. In what would be considered a normal outage there would be no visible performance impact on the hosting.

So in this case, out of curiosity what would have made it act "slower"?
 

Offline gnif

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Re: Server Error Reports
« Reply #146 on: June 19, 2018, 12:49:06 pm »
Normally with a server outage the up server will see the other server is no longer responding and will take over it's duties, but because the data center had null routed the external traffic, the two servers could not see there was a fault condition. In what would be considered a normal outage there would be no visible performance impact on the hosting.

So in this case, out of curiosity what would have made it act "slower"?

We have two IPv4 addresses listed in DNS for this website, both for load balancing and in the event something like what happened here occurs. In normal operation both IP addresses go to a single load balancer which then routes them to one of the two servers. During a fault the faulted server's IP address will be taken over by the still working server, allowing normal operation, but as stated above, this did not occur due to internal communication between servers still being fully functional.

The delay was because of this design, one IP address to the world was offline. Your browser is designed to try to contact each IP address listed in DNS, failure to contact one after a timeout (normally 30 seconds), it will try the next, it was this timeout that was causing the slow behavior. Just like when you try to go to a domain that is offline, there might be 30-60 seconds before the browser gives up.
« Last Edit: June 19, 2018, 12:50:38 pm by gnif »
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Re: Server Error Reports
« Reply #147 on: June 25, 2018, 10:28:16 pm »
Something's not right.  :-//
502's off and on for a couple of days and mainly in the evenings AU time, then this just a mo ago when trying to refresh the main forum page:

Connection Problems
Sorry, SMF was unable to connect to the database. This may be caused by the server being busy. Please try again later.

Generally works fine after a couple of minutes and loads just as fast as normal.  :-//
Something needs your magic touch gnif.
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Offline gnif

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Re: Server Error Reports
« Reply #148 on: June 25, 2018, 10:29:36 pm »
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Re: Server Error Reports
« Reply #149 on: July 11, 2018, 01:19:07 pm »
gnif, a page that just won't load or any of the posts in it.  :-//
http://www.eevblog.com/forum/testgear/siglent-technical-support-join-in-eevblog/msg1663322/#new

That's page 43. The first page in the thread and others load just fine. I can see who's posted in the Test Equipment board and then check their posts to view it and then Reply from within that member posts page.
Seen this problem for a couple of hours at least now so ~midday Sydney time onwards.
TIA
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Offline gnif

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Re: Server Error Reports
« Reply #150 on: July 11, 2018, 01:30:35 pm »
Thanks, I will look into it shortly, likely someone posted an image again that is dimensionally crazy large.
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I volunteer my time to manage this server, if you would like to support this work I have a patreon here:
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Offline gnif

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Re: Server Error Reports
« Reply #151 on: July 11, 2018, 02:33:09 pm »
gnif, a page that just won't load or any of the posts in it.  :-//
http://www.eevblog.com/forum/testgear/siglent-technical-support-join-in-eevblog/msg1663322/#new

That's page 43. The first page in the thread and others load just fine. I can see who's posted in the Test Equipment board and then check their posts to view it and then Reply from within that member posts page.
Seen this problem for a couple of hours at least now so ~midday Sydney time onwards.
TIA

This has been fixed (image removed), a Microsoft Bitmap was uploaded to the forum with a .png extension. SMF yet again crashed out due to it's inability to check mime types...  |O
HostFission - Full Server Monitoring and Management Solutions.
https://hostfission.com/
https://twitter.com/HostFission

I volunteer my time to manage this server, if you would like to support this work I have a patreon here:
https://www.patreon.com/gnif
 
The following users thanked this post: tautech

Online tautech

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Re: Server Error Reports
« Reply #152 on: July 16, 2018, 02:46:22 pm »
Hi gnif
Dunno if you can see it but the forum and EEVblog main page have been painfully slow to load and work with for the last few hours......like  :=\

All the other sites I'm using, no problem, quick as a flash !
Avid Rabid Hobbyist
 

Offline Neilm

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Re: Server Error Reports
« Reply #153 on: July 17, 2018, 04:55:59 am »
It is loading fine for me at the moment (7:55 BST)
Two things are infinite: the universe and human stupidity; and I'm not sure about the the universe. - Albert Einstein
 

Offline gnif

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Re: Server Error Reports
« Reply #154 on: July 18, 2018, 12:27:00 pm »
Logs over the last week show now issues with the hosting or slow load times, and my manual spot checks have not turned up any problems.

I find it amusing though, people now really notice if it's slow... when I started helping dave out, it was normal to be slow, and people only complained if it was down.
« Last Edit: July 18, 2018, 12:29:05 pm by gnif »
HostFission - Full Server Monitoring and Management Solutions.
https://hostfission.com/
https://twitter.com/HostFission

I volunteer my time to manage this server, if you would like to support this work I have a patreon here:
https://www.patreon.com/gnif
 
The following users thanked this post: tautech

Offline gnif

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Re: Server Error Reports
« Reply #155 on: August 10, 2018, 11:26:43 pm »
The short outage that just occurred was due to a connectivity failure at the data center.  EEVBlog and several other clients that host at the same data center were offline for this period. Nothing to be concerned about :)
HostFission - Full Server Monitoring and Management Solutions.
https://hostfission.com/
https://twitter.com/HostFission

I volunteer my time to manage this server, if you would like to support this work I have a patreon here:
https://www.patreon.com/gnif
 

Offline billrabinowitz

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Re: Server Error Reports
« Reply #156 on: January 07, 2019, 03:40:44 am »
keep getting an error message when I try to post a question
 

Offline gnif

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Re: Server Error Reports
« Reply #157 on: January 07, 2019, 04:15:34 am »
keep getting an error message when I try to post a question


Not much I can do if you don't report what the error message is.
HostFission - Full Server Monitoring and Management Solutions.
https://hostfission.com/
https://twitter.com/HostFission

I volunteer my time to manage this server, if you would like to support this work I have a patreon here:
https://www.patreon.com/gnif
 

Offline Towger

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Re: Server Error Reports
« Reply #158 on: January 12, 2019, 08:38:00 pm »
Hi gnif,

When using Tapatalk, for the last few weeks links to photos hosted on the form are appearing as broken links.
It appears to correspond to this Tapatalk issue: https://www.tapatalk.com/groups/tapatalksupport/photos-problem-t40891.html
Which they eventually think is caused by "We find the domain of your forum registered in Tapatalk is HTTP protocol. But the attachments were uploaded to the HTTPS domain."
We have been https for some time now, so this may be a red herring or has the hosting of attached files been recently changed on the server?

Thanks,
Towger.
 


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