SH102, PHP having name resolving issues

**MarkRH** · July 2nd, 2008, 7:20 AM

Ticket: BZG-526427

The effect can be seen here: http://www.markheadrick.com/php/server_status.php

Everything uses the same code:

PHP Code:


			
while ($count < $ports)

{

    if ($ip[$count] == '')

    {

        $ip[$count] = 'localhost';

    }

    $port_starttime = getmicrotime();

    $fp = @fsockopen($ip[$count], $port[$count], $errno, $errstr, $timeout);

    if (!$fp)

    {

        echo "<tr>\n  <td>{$service[$count]}</td>\n  <td class=\"offline\">Offline</td>\n<td>".number_format((getmicrotime() - $port_starttime), 4)." seconds</td></tr>\n";

    }

    else

    {

        echo "<tr>\n  <td>{$service[$count]}</td>\n  <td class=\"online\">Online</td>\n<td>".number_format((getmicrotime() - $port_starttime), 4)." seconds</td></tr>\n";

        fclose($fp);

    }

    $count++;

}

I am getting up to a 10 second delay when using cURL or fsockopen() to connect to a website outside the server or one of my subdomains on the server. For example, my main page at Mark R Headrick's Web Page uses cURL to connect to gallery.markheadrick.com and it is generally timing out, taking over 5 seconds.

I think what's throwing support a loop at the moment is that from a SSH prompt you can ping google.com or gallery.markheadrick.com and get the name to resolve immediately... but not parts of PHP it seems. Was working fine up until a few hours ago.

**MarkRH** · July 2nd, 2008, 7:34 AM

Oh thought I should probably mention that my blog stuff on my main site is a static text file that I include. I only generate that content when I make a new post.

**cowboy** · July 2nd, 2008, 8:25 AM

I would blame the delays on the responding servers. Why don't you loop with individual AJAX calls so the page itself will load and only each status can wait.

**MarkRH** · July 2nd, 2008, 8:51 AM

Well, the responding server in this case is itself, sh102.

Maybe I can change the code so the browser executes javascript to get the image block rather than the php script itself using cURL to include it the html it sends to the browser. That doesn't really solve the problem though.

**MarkRH** · July 2nd, 2008, 2:16 PM

Hmmm... wonder if that Circuit Turn-Up deal has any part in this or just a coincidence? Seems as if the ticket has stalled for the last 6 hours at 3rd level support.

**MarkRH** · July 3rd, 2008, 1:48 AM

Still broken somewhere. Ticket was assigned at 2:55pm yesterday and no response after that.

See what the morning holds...

**MarkRH** · July 3rd, 2008, 2:53 PM

Still broke. Check out the connection lags with fsockopen() with a domain/sub-domain vs an ip address. I'd use an ip address to get around the lag but that doesn't work with domains or sub-domains on the same server. Under normal operation conditions, this whole script should take less than a second... not 34 seconds. Eeek!

Something tells me this isn't going to be resolved until after the weekend holiday...

Well, it might be, but I'm going to the parents soon.

**MarkRH** · July 8th, 2008, 12:55 AM

Looks like around 6:00am on July 4th the problem was resolved by the Unix Admins. Thought I should post that everything seems to be working fine now.

**MarkRH** · July 13th, 2008, 1:42 PM

Well, this is happening again. I've re-opened the ticket and so far after two back and forths with support they don't get it or I'm just not communicating the issue properly (which I shouldn't have to at all since it's all already in the ticket's history). I don't think I'll reply back on the ticket until Monday so I can get someone that works during the week.

Maybe all the techs are just frazzled from dealing with these Network issues or something and brains have turned to mush... which having worked in several tech support jobs myself I can certainly understand.

July 2nd, 2008, 7:20 AM	#1 (permalink)
MarkRH Race Surpass Super #1 Joined in Jul 2006 Lives in Oklahoma City, OK Hosted on sh102 1,219 posts Gave thanks: 18 Thanked 86 times	SH102, PHP having name resolving issues Ticket: BZG-526427 The effect can be seen here: http://www.markheadrick.com/php/server_status.php Everything uses the same code: PHP Code: while ($count < $ports) { if ($ip[$count] == '') { $ip[$count] = 'localhost'; } $port_starttime = getmicrotime(); $fp = @fsockopen($ip[$count], $port[$count], $errno, $errstr, $timeout); if (!$fp) { echo "<tr>\n <td>{$service[$count]}</td>\n <td class=\"offline\">Offline</td>\n<td>".number_format((getmicrotime() - $port_starttime), 4)." seconds</td></tr>\n"; } else { echo "<tr>\n <td>{$service[$count]}</td>\n <td class=\"online\">Online</td>\n<td>".number_format((getmicrotime() - $port_starttime), 4)." seconds</td></tr>\n"; fclose($fp); } $count++; } I am getting up to a 10 second delay when using cURL or fsockopen() to connect to a website outside the server or one of my subdomains on the server. For example, my main page at Mark R Headrick's Web Page uses cURL to connect to gallery.markheadrick.com and it is generally timing out, taking over 5 seconds. I think what's throwing support a loop at the moment is that from a SSH prompt you can ping google.com or gallery.markheadrick.com and get the name to resolve immediately... but not parts of PHP it seems. Was working fine up until a few hours ago. __________________ SH102 : Mark Headrick - Blog - Gallery Pelicar \| Company of Valor \| Mysstie Wolfestar

July 2nd, 2008, 7:34 AM	#2 (permalink)
MarkRH Race Surpass Super #1 Joined in Jul 2006 Lives in Oklahoma City, OK Hosted on sh102 1,219 posts Gave thanks: 18 Thanked 86 times	Oh thought I should probably mention that my blog stuff on my main site is a static text file that I include. I only generate that content when I make a new post. __________________ SH102 : Mark Headrick - Blog - Gallery Pelicar \| Company of Valor \| Mysstie Wolfestar

July 2nd, 2008, 8:25 AM	#3 (permalink)
cowboy Surpass Fan Excelling Contributor Joined in Nov 2005 Lives in Colorado Hosted on DEDI 934 posts Gave thanks: 2 Thanked 94 times	I would blame the delays on the responding servers. Why don't you loop with individual AJAX calls so the page itself will load and only each status can wait. __________________ Where would you be if you were at the highest court in the land (US)?

July 2nd, 2008, 8:51 AM	#4 (permalink)
MarkRH Race Surpass Super #1 Joined in Jul 2006 Lives in Oklahoma City, OK Hosted on sh102 1,219 posts Gave thanks: 18 Thanked 86 times	Well, the responding server in this case is itself, sh102. Maybe I can change the code so the browser executes javascript to get the image block rather than the php script itself using cURL to include it the html it sends to the browser. That doesn't really solve the problem though. __________________ SH102 : Mark Headrick - Blog - Gallery Pelicar \| Company of Valor \| Mysstie Wolfestar

July 2nd, 2008, 2:16 PM	#5 (permalink)
MarkRH Race Surpass Super #1 Joined in Jul 2006 Lives in Oklahoma City, OK Hosted on sh102 1,219 posts Gave thanks: 18 Thanked 86 times	Hmmm... wonder if that Circuit Turn-Up deal has any part in this or just a coincidence? Seems as if the ticket has stalled for the last 6 hours at 3rd level support. __________________ SH102 : Mark Headrick - Blog - Gallery Pelicar \| Company of Valor \| Mysstie Wolfestar

July 3rd, 2008, 1:48 AM	#6 (permalink)
MarkRH Race Surpass Super #1 Joined in Jul 2006 Lives in Oklahoma City, OK Hosted on sh102 1,219 posts Gave thanks: 18 Thanked 86 times	Still broken somewhere. Ticket was assigned at 2:55pm yesterday and no response after that. See what the morning holds... __________________ SH102 : Mark Headrick - Blog - Gallery Pelicar \| Company of Valor \| Mysstie Wolfestar

July 3rd, 2008, 2:53 PM	#7 (permalink)
MarkRH Race Surpass Super #1 Joined in Jul 2006 Lives in Oklahoma City, OK Hosted on sh102 1,219 posts Gave thanks: 18 Thanked 86 times	Still broke. Check out the connection lags with fsockopen() with a domain/sub-domain vs an ip address. I'd use an ip address to get around the lag but that doesn't work with domains or sub-domains on the same server. Under normal operation conditions, this whole script should take less than a second... not 34 seconds. Eeek! Something tells me this isn't going to be resolved until after the weekend holiday... Well, it might be, but I'm going to the parents soon. __________________ SH102 : Mark Headrick - Blog - Gallery Pelicar \| Company of Valor \| Mysstie Wolfestar

July 8th, 2008, 12:55 AM	#8 (permalink)
MarkRH Race Surpass Super #1 Joined in Jul 2006 Lives in Oklahoma City, OK Hosted on sh102 1,219 posts Gave thanks: 18 Thanked 86 times	Looks like around 6:00am on July 4th the problem was resolved by the Unix Admins. Thought I should post that everything seems to be working fine now. __________________ SH102 : Mark Headrick - Blog - Gallery Pelicar \| Company of Valor \| Mysstie Wolfestar

July 13th, 2008, 1:42 PM	#9 (permalink)
MarkRH Race Surpass Super #1 Joined in Jul 2006 Lives in Oklahoma City, OK Hosted on sh102 1,219 posts Gave thanks: 18 Thanked 86 times	Well, this is happening again. I've re-opened the ticket and so far after two back and forths with support they don't get it or I'm just not communicating the issue properly (which I shouldn't have to at all since it's all already in the ticket's history). I don't think I'll reply back on the ticket until Monday so I can get someone that works during the week. Maybe all the techs are just frazzled from dealing with these Network issues or something and brains have turned to mush... which having worked in several tech support jobs myself I can certainly understand. __________________ SH102 : Mark Headrick - Blog - Gallery Pelicar \| Company of Valor \| Mysstie Wolfestar

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