Quoting Joseph Mays <m...@win.net>:
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@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 <m...@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@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: l...@b1-systems.de
B1 Systems GmbH
Osterfeldstraße 7 / 85088 Vohburg / http://www.b1-systems.de
GF: Ralph Dehner / Unternehmenssitz: Vohburg / AG: Ingolstadt,HRB 3537
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--
Jan Schneider
The Horde Project
https://www.horde.org/
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Hopefully I am not sending you down the wrong path in debugging your
problem but will share a problem/solution that may have some relevance.
FWIW, I had a similar issue that was difficult to debug and by sheer
luck figured out the solution. The user in this case had too many
devices and was using an iPhone all the time, two iPads at home on
weekends, Webmail and Outlook 2011 from his Macbook on the road, and
Outlook on a Windows 7 client at work to access email on the mail
server.
He was used to accepting and rejecting meeting requests from whichever
platform he was using and quite often all the calendar entries would
be out of sync, entries deleted from one system remained on another,
events created on one was not visible on the other etc. This was
because he was not always on the VPN to the mail server while updating
his calendar entries and the iPhone, iPad etc., also were replicating
all sorts of stuff to iCloud. To complicate matters further, he would
move meeting requests (email messages) to the wrong folder in Outlook
or keep Calendar entries in his email folders. Whenever he did that,
opening any email message through webmail would be quite slow (2
minutes typically). I discovered this only because I made him bring
all his devices to our lab, and wasted a whole day trying to simulate
the problem. I never realized a user would do something like that. My
solution in this case was to tell him to accept and decline meeting
invites ONLY on the iPhone, NOT use Outlook 2016 for Calendar and
Tasks, and be patient re. syncs.
Hope this is helpful information.
All the best,
Vijay
--
ForeTell Technologies Limited
59 Flamingo Avenue
Winnipeg, MB, Canada
R3J 0X6
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