[imp] Individual messages taking 77 seconds to open.

[Joseph Mays]

I have traced down somewhat to finding out where delay occurs in 
message.php.

It is happening at line 257 in my message.php:   if 
(!$imp_contents->buildMessage()) {

So it's somewhere in buildMessage() function. Does anyone have any clue what 
that function does in message.php and what might be causing the 77 second 
delay for some people?

-----Original Message----- 
From: Jan Schneider
Sent: Tuesday, May 28, 2019 2:16 PM
To: imp at lists.horde.org
Subject: Re: [imp] Individual messages taking 77 seconds to open.

You could use Xdebug or Blackfire to profile this script to find out
where it's spending the time (most probably waiting).

Zitat von Joseph Mays <mays at win.net>:

>> do you see a pattern in the users who have this issue, like having a
>> certain locale?
>
> I have been trying to identify something they have in common, but  thus 
> far have not. One handy aspect of this issue is that *I* have  the problem 
> and thus can replicate it. The support person for this  system, however, 
> does not have the problem, and thus spent some time  very confused about 
> some calls he was receiving before first  reporting it.
>
> I have ruled out browser version -- have tried Chrome, Explorer,  Firefox, 
> all have the problem.
>
> I have ruled out reverse dns.
>
> Note that I am only human, and thus might have overlooked something.  I 
> would be happy to hear any suggestion about something that would  cause 
> this problem in message.php (and only message.php), even if  it's 
> something I thought I had ruled out.
>
> -----Original Message----- From: Ralf Lang
> Sent: Monday, May 27, 2019 6:57 AM
> To: imp at lists.horde.org
> Subject: Re: [imp] Individual messages taking 77 seconds to open.
>
> Hi Joseph,
>
> Am 24.05.19 um 22:03 schrieb Joseph Mays:
>> I’m working on a server that is using, in production what is  admittedly 
>> a very old version of horde imp. Still, the server has  been there 
>> unchanged for a few years. A strange problem has  developed in one aspect 
>> of horde imp in the last couple of months,  though.
>>
>> Everything about the server is fine, except that some users (not  all) 
>> are having a problem when it comes to clicking on a message in  the inbox 
>> and opening it. Opening the message takes almost exactly  (I have timed 
>> it with a stopwatch many times) 77 seconds to open.  Every other aspect 
>> of the horde server works fine and responds  immediately.
>>
>> I have tried calling the horde imp webmail interface through both  ssl 
>> and non ssl versions. Both have the same problem. We have a  squirrelmail 
>> webmail interface that works with the same imap  server. It does not have 
>> this problem. We have other imap  interfaces that work fine. The problem 
>> is just some users of the  horde imp software, and specifically only with 
>> calling message.php  through horde.
>>
>> I have put wireshark on the browser system and watched the 
>> communication. The get request for message.php is sent immediately  by 
>> the server when the link is clicked in the inbox. The server  acks the 
>> response, but the get request does not show up in the  webserver logs. 
>> Then, for 77 seconds, nothing apparently happens on  either the client or 
>> server side (except for the sidebar.php  refreshes, which work fine 
>> through this whole process). Then, 77  seconds later, the get request 
>> appears in the webserver log, is  responded to immediately, and the 
>> message appears in the browser  interface.
>>
>> I have been going through every timeout I can find, php.ini, ssl,  the 
>> horde imp configuaration, nothing makes any difference. The  webserver 
>> seems to be processing *something* in message.php, timing  out, and then 
>> going ahead and sending the message.
>>
>> At this point I would be happy to hear any ideas someone might have.
>>
>> I’ve set php to E_ALL for logging, nothing appears in the webserver 
>> access or error logs beyond the http exchange.
>
> do you see a pattern in the users who have this issue, like having a
> certain locale?
>
> -- 
> Ralf Lang
> Linux Consultant / Developer
> Tel.: +49-170-6381563
> Mail: lang at b1-systems.de
> B1 Systems GmbH
> Osterfeldstraße 7 / 85088 Vohburg / http://www.b1-systems.de
> GF: Ralph Dehner / Unternehmenssitz: Vohburg / AG: Ingolstadt,HRB 3537
>
> -- 
> imp mailing list
> Frequently Asked Questions: http://wiki.horde.org/FAQ
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-- 
Jan Schneider
The Horde Project
https://www.horde.org/

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