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Author Topic:   Network Problems
Admin
Director
Posts: 12425
From: EvC Forum
Joined: 06-14-2002
Member Rating: 2.4


Message 61 of 76 (785796)
06-11-2016 11:36 AM
Reply to: Message 60 by Tangle
05-30-2016 4:01 AM


Re: Website Performance Problems
Though I'm replying to Tangle, this is just to continue the chain of messages about website performance.

I filed a ticket with our webhost provider on May 30 when the problem became most severe. They made some simple recommendations but nothing revelatory or even that helpful. Other than monitoring I have not done a thing, but I have not since then noticed anything more than the occasional seconds-long load time. Has anyone else experienced persistent problems since then? Naturally I'll continue keeping my eye out for performance issues, but if no one's having performance issues then I have to say that the simultaneity of filing a ticket and the problem going away seems a bit of a suspicious coincidence. I wonder if perhaps, without saying anything in the ticket, that they ran some kind of maintenance software just as a precaution to make sure it wasn't anything on their end, maybe some "network table cleanup" program, who knows. The problem being at their end *does* seem unlikely to me because static webpages from the site are served immediately, but networks are very complicated these days with a lot of active processing, so I don't know...

Hopefully the performance issues are gone, but please continue to report problems here.


--Percy
EvC Forum Director

This message is a reply to:
 Message 60 by Tangle, posted 05-30-2016 4:01 AM Tangle has not yet responded

Replies to this message:
 Message 62 by jar, posted 06-11-2016 9:13 PM Admin has responded

    
jar
Member
Posts: 28667
From: Texas!!
Joined: 04-20-2004
Member Rating: 2.6


Message 62 of 76 (785833)
06-11-2016 9:13 PM
Reply to: Message 61 by Admin
06-11-2016 11:36 AM


Re: Website Performance Problems
8:13pm CST got a 503.

Anyone so limited that they can only spell a word one way is severely handicapped!

This message is a reply to:
 Message 61 by Admin, posted 06-11-2016 11:36 AM Admin has responded

Replies to this message:
 Message 63 by Admin, posted 06-12-2016 9:47 AM jar has not yet responded

  
Admin
Director
Posts: 12425
From: EvC Forum
Joined: 06-14-2002
Member Rating: 2.4


Message 63 of 76 (785852)
06-12-2016 9:47 AM
Reply to: Message 62 by jar
06-11-2016 9:13 PM


Re: Website Performance Problems
Yes, thanks, I experienced that one, too. Investigation revealed a network problem of unknown cause and origin. Ping revealed the outage was actually intermittent, with connectivity to the server reestablishing itself for a few seconds several times a minute. Because of the inconsistent connectivity I was unable to get a helpful tracert, but I was able to connect to the webhosting company's website, which is at the same server facility as our server, so it had to be the webhosting company's own internal network problem and not related to our server. The problem seemed to last about five or ten minutes.

--Percy
EvC Forum Director

This message is a reply to:
 Message 62 by jar, posted 06-11-2016 9:13 PM jar has not yet responded

Replies to this message:
 Message 64 by Tangle, posted 06-15-2016 7:21 AM Admin has acknowledged this reply

    
Tangle
Member
Posts: 4527
From: UK
Joined: 10-07-2011
Member Rating: 3.1


Message 64 of 76 (786045)
06-15-2016 7:21 AM
Reply to: Message 63 by Admin
06-12-2016 9:47 AM


Re: Website Performance Problems
12.18 UK time

The server is temporarily unable to service your request due to maintenance downtime or capacity problems. Please try again later.


Je suis Charlie. Je suis Ahmed. Je suis Juif. Je suis Parisien.

Life, don't talk to me about life - Marvin the Paranoid Android

"Science adjusts it's views based on what's observed.
Faith is the denial of observation so that Belief can be preserved."
- Tim Minchin, in his beat poem, Storm.


This message is a reply to:
 Message 63 by Admin, posted 06-12-2016 9:47 AM Admin has acknowledged this reply

  
jar
Member
Posts: 28667
From: Texas!!
Joined: 04-20-2004
Member Rating: 2.6


Message 65 of 76 (786246)
06-19-2016 11:06 AM


10:05am CST 503 error.

Anyone so limited that they can only spell a word one way is severely handicapped!

  
jar
Member
Posts: 28667
From: Texas!!
Joined: 04-20-2004
Member Rating: 2.6


Message 66 of 76 (786367)
06-20-2016 8:39 PM


7:34pm CST 503 error

Anyone so limited that they can only spell a word one way is severely handicapped!

  
Admin
Director
Posts: 12425
From: EvC Forum
Joined: 06-14-2002
Member Rating: 2.4


Message 67 of 76 (786380)
06-21-2016 8:31 AM


Thanks for the Reports
I'm experiencing slowness right now but no 503 errors, started around 8 AM ET. Server load is low. There's nothing suspicious in the log. A tracert was fine.

I've investigated the reports posted above, nothing in the logs. I still suspect something related to the processes/daemons on the server. I'll continue monitoring and hope something eventually turns up.

As I finish typing this, response now is fast.


--Percy
EvC Forum Director

Replies to this message:
 Message 68 by jar, posted 06-21-2016 8:41 AM Admin has acknowledged this reply

    
jar
Member
Posts: 28667
From: Texas!!
Joined: 04-20-2004
Member Rating: 2.6


Message 68 of 76 (786381)
06-21-2016 8:41 AM
Reply to: Message 67 by Admin
06-21-2016 8:31 AM


Re: Thanks for the Reports
Just to back that up. Logging in around 7am CST took forever. No 503 but really slow. Once things loaded all seemed fine.

Anyone so limited that they can only spell a word one way is severely handicapped!

This message is a reply to:
 Message 67 by Admin, posted 06-21-2016 8:31 AM Admin has acknowledged this reply

  
Faith
Member
Posts: 24384
Joined: 10-06-2001
Member Rating: 1.0


Message 69 of 76 (786418)
06-21-2016 4:47 PM


1:45 PDT Service Temporarily Unavailable. Same thing happened about an hour ago. Sometimes it's very slow, but sometimes faster, even within this same hour.
    
NoNukes
Member
Posts: 9429
From: Central NC USA
Joined: 08-13-2010
Member Rating: 2.8


Message 70 of 76 (786589)
06-23-2016 5:25 PM


Please let us know if these repeated reports are counter-productive. I am currently experiencing repeated 503 messages (starting at 5:16 EST). I don't seem to have any trouble accessing static pages, but it took several attempts for me to reach this forum to post this message.

Attempt to post at 5:25: Successful.


Under a government which imprisons any unjustly, the true place for a just man is also in prison. Thoreau: Civil Disobedience (1846)

History will have to record that the greatest tragedy of this period of social transition was not the strident clamor of the bad people, but the appalling silence of the good people. Martin Luther King

If there are no stupid questions, then what kind of questions do stupid people ask? Do they get smart just in time to ask questions? Scott Adams


    
Tangle
Member
Posts: 4527
From: UK
Joined: 10-07-2011
Member Rating: 3.1


Message 71 of 76 (786702)
06-25-2016 9:09 AM


The site was totally unusable from around 8am until 2pm UK time

Je suis Charlie. Je suis Ahmed. Je suis Juif. Je suis Parisien.

Life, don't talk to me about life - Marvin the Paranoid Android

"Science adjusts it's views based on what's observed.
Faith is the denial of observation so that Belief can be preserved."
- Tim Minchin, in his beat poem, Storm.


  
Admin
Director
Posts: 12425
From: EvC Forum
Joined: 06-14-2002
Member Rating: 2.4


Message 72 of 76 (787053)
07-02-2016 8:34 AM


Update on Performance Issue
We have been consistently fast for at least a few days. I had filed another ticket with the webhosting company about a week ago, and in reaction to data I provided they blocked a number of IPs, not just from our server but from their entire network. The webhosting company thought the problem similar to a Slow Loris attack, where a number of incomplete requests are submitted to a website causing the server to keep the connections open waiting for the requests to complete. Eventually the number of requests being waited upon overwhelms the server and you begin getting slowness and finally timeouts.

These kinds of attacks don't bring any benefit to the hacker, unless their goal is to make a website unresponsive. I don't know why the RIPE network (the originator of all the open connections) would care about us.


--Percy
EvC Forum Director

Replies to this message:
 Message 73 by Minnemooseus, posted 07-02-2016 4:20 PM Admin has acknowledged this reply
 Message 74 by NoNukes, posted 07-02-2016 6:20 PM Admin has acknowledged this reply

    
Minnemooseus
Member
Posts: 3486
From: Duluth, Minnesota, U.S. (West end of Lake Superior)
Joined: 11-11-2001
Member Rating: 3.2


Message 73 of 76 (787060)
07-02-2016 4:20 PM
Reply to: Message 72 by Admin
07-02-2016 8:34 AM


Re: Update on Performance Issue
Maybe you've looked at this already:

https://www.ripe.net/...and-asns/db/faq/faq-hacking-spamming

Moose


This message is a reply to:
 Message 72 by Admin, posted 07-02-2016 8:34 AM Admin has acknowledged this reply

    
NoNukes
Member
Posts: 9429
From: Central NC USA
Joined: 08-13-2010
Member Rating: 2.8


Message 74 of 76 (787065)
07-02-2016 6:20 PM
Reply to: Message 72 by Admin
07-02-2016 8:34 AM


Re: Update on Performance Issue
These kinds of attacks don't bring any benefit to the hacker, unless their goal is to make a website unresponsive.

Not meaning to stoke any paranoia, but an evolution/creationist debate site might well be target worthy to some folks.


Under a government which imprisons any unjustly, the true place for a just man is also in prison. Thoreau: Civil Disobedience (1846)

History will have to record that the greatest tragedy of this period of social transition was not the strident clamor of the bad people, but the appalling silence of the good people. Martin Luther King

If there are no stupid questions, then what kind of questions do stupid people ask? Do they get smart just in time to ask questions? Scott Adams


This message is a reply to:
 Message 72 by Admin, posted 07-02-2016 8:34 AM Admin has acknowledged this reply

    
Admin
Director
Posts: 12425
From: EvC Forum
Joined: 06-14-2002
Member Rating: 2.4


Message 75 of 76 (787139)
07-05-2016 8:43 AM


Thanks for the Comments
Thanks for the above comments. I'm in a bit of a busy period but will continue to monitor performance.

--Percy
EvC Forum Director

    
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