Tickets :: [#8224] Enabling compress_pages causes pages to load with no formatting

Summary	Enabling compress_pages causes pages to load with no formatting
Queue	Ansel
Queue Version	FRAMEWORK_3
Type	Bug
State	Stalled
Priority	1. Low
Owners	Michael Rubinsky <mrubinsk (at) horde (dot) org>
Requester	simon (at) simonandkate (dot) net
Created	04/28/2009 (1483 days ago)
Due
Updated	09/03/2011 (625 days ago)
Assigned	05/10/2010 (1106 days ago)
Resolved	09/03/2011 (625 days ago)
Attachments	ansel.jpg nostyle.txt style.txt
Milestone
Patch	No

09/03/2011 04:01:41 AM	Michael Rubinsky	Comment #21 State ⇒ Stalled	Reply to this comment
Been running with compression now for about 3 months without running across this once on Horde 4. Stalling for Horde 3, not an issue with Horde 4.

06/01/2011 07:44:14 PM	Michael Rubinsky	Comment #20	Reply to this comment
Stalling this: I haven't seen this recently in H3, or at all in H4. Either way, I have no idea what to do about it if it is still happening. It's caused by what I can only assume is a PHP internals issue: A static variable is not acting like one.

05/10/2010 01:26:21 PM	Jan Schneider	State ⇒ Assigned

02/15/2010 04:13:52 AM	taiken (at) ubishops (dot) ca	Comment #19	Reply to this comment
Glad someone else is having this same problem-I thought I was the only one. Running Horde 3.3.6, and Ansel and Trean are the only applications affected.

10/29/2009 05:19:47 PM	Michael Rubinsky	Comment #18	Reply to this comment
From what I read on that page, that is changing base.php in the following apps only: agora, forwards, jonah, passwd, trean and vacation. Not ansel, which is the main app that throws the errors for me. Although I do have agora installed to add comments on pics in ansel... Yup. Exactly the reason I thought it would help, since Agora is called from within Ansel. Again, not 100% sure it will help, but thought it worth a try.

10/29/2009 12:13:35 AM	simon (at) simonandkate (dot) net	Comment #17	Reply to this comment
From what I read on that page, that is changing base.php in the following apps only: agora, forwards, jonah, passwd, trean and vacation. Not ansel, which is the main app that throws the errors for me. Although I do have agora installed to add comments on pics in ansel... Worth a try you think?

10/28/2009 07:09:24 PM	Michael Rubinsky	Comment #16	Reply to this comment
No idea if this *will* fix your issue, but thought it would be worth a poke. http://lists.horde.org/archives/cvs/Week-of-Mon-20091019/089595.html

10/28/2009 12:22:32 PM	simon (at) simonandkate (dot) net	Comment #15	Reply to this comment
Yup... I'm running Horde 3.3.4 still at the moment, what do I need to upgrade to check the changes? Just a Horde Framework upgrade to 3.3.5, or are there additional patches needed?

10/24/2009 06:29:14 PM	Michael Rubinsky	Comment #14 Assigned to Michael Rubinsky	Reply to this comment
There were some recent commits regarding output compression in other Horde apps. It's a long shot, but it's possible that those commits may have fixed this, depending on what other applications were being loaded, etc... Can the original poster please check to see if this is still happening?

06/30/2009 05:28:19 PM	Michael Rubinsky	Comment #13	Reply to this comment
Michael (or anyone else...) Any ideas on why this is doing this, even with upgraded PHP? Nope - which is why the ticket is still open ;)

06/24/2009 05:05:08 AM	simon (at) simonandkate (dot) net	Comment #12	Reply to this comment
Michael (or anyone else...) Any ideas on why this is doing this, even with upgraded PHP?

05/29/2009 08:38:22 AM	simon (at) simonandkate (dot) net	Comment #11	Reply to this comment
:( Still does it with PHP 5.2.6.

05/29/2009 06:51:24 AM	simon (at) simonandkate (dot) net	Comment #10	Reply to this comment
OK, I bit the bullet, backed up the virtual machine, and plunged into upgrading PHP. Pointed CentOS at the CentOS testing repo, installed php 5.2.6. Immediately ran into some issues with loaded extensions and pecl stuff, but managed to get through those without completely borking my rpm-based setup... I think. LOL. Had to repackage php-tidy and php-mcrypt, but found a good post here http://www.webtatic.com/blog/2009/05/installing-php-526-extra-extensions/comment-page-1/#comment-56 that was having the exact same need. I have now re-enabled php compression in Horde, and will see over the next few days if it fixes this issue. If it does, I think we can safely say that it is an issue with the older version of PHP that I was running (5.1.6) rather than

05/07/2009 04:52:57 AM	simon (at) simonandkate (dot) net	Comment #9	Reply to this comment
I would upgrade to the latest PHP 5.2.x Like I said, I've not had this problem in quite a while, and the only thing I can think of to attribute it to was a bug in PHP....of course, YMMV Hmmm.... My mail box is a CentOS 5.3 box that is (mostly) still as per distro install (with the exception of easily segregated apps like Horde, which are simple to manage outside of yum). Not sure that taking it outside of that with such a critical piece like PHP is going to make my life easier in the long run. It IS a virtual though, so I could take a snapshot and have a go... will see what the next few weeks brings. I'll have to google PHP upgrades. I think a PHP 5.2.x is available in the CentOS testing repo...

04/28/2009 10:45:55 PM	Michael Rubinsky	Comment #8	Reply to this comment
I would upgrade to the latest PHP 5.2.x Like I said, I've not had this problem in quite a while, and the only thing I can think of to attribute it to was a bug in PHP....of course, YMMV

04/28/2009 10:04:47 PM	simon (at) simonandkate (dot) net	Comment #7	Reply to this comment
[Show Quoted Text - 11 lines][Hide Quoted Text] It looks like the exact same issue that I was talking about, though I haven't seen this happen personally for a while. What version of PHP are you running? In case you, or anyone else with PHP skills and time, want to dig, the code in question is in framework/Horde/Horde.php it's in Horde::compressOutput(). What was happening was that for some reason the static $started variable was not acting like a static for some reason, so the function did not exist early like it should. This was bugging me on and off for a a very long time,and was never able to get anywhere beyond this. That being said, it hasn't been happening lately, so perhaps a PHP upgrade, or other action, has solved it for me... PHP 5.1.6 on CentOS 5.3 x64. Thanks Michael. It seems strange that it works sometimes and not others.

04/28/2009 02:45:31 PM	Michael Rubinsky	Summary ⇒ Enabling compress_pages causes pages to load with no formatting

04/28/2009 02:31:46 PM	Michael Rubinsky	Comment #6 Summary ⇒ Ansel randomly loads with no formattingI hThe	Reply to this comment
It looks like the exact same issue that I was talking about, though I haven't seen this happen personally for a while. What version of PHP are you running? In case you, or anyone else with PHP skills and time, want to dig, the code in question is in framework/Horde/Horde.php it's in Horde::compressOutput(). What was happening was that for some reason the static $started variable was not acting like a static for some reason, so the function did not exist early like it should. This was bugging me on and off for a a very long time,and was never able to get anywhere beyond this. That being said, it hasn't been happening lately, so perhaps a PHP upgrade, or other action, has solved it for me...

04/28/2009 05:06:17 AM	simon (at) simonandkate (dot) net	Comment #5	Reply to this comment
Disabling compression appears to have fixed it... I would ideally like to use compression to speed up loading over slow links though. But it's fine if it's the only way. Thanks Michael for the quick response. If you come up with a fix I'm happy to test it for you... :) This was the only outstanding issue on my Horde install, so all good now - for now! :) Thanks for the great software.

04/28/2009 04:43:41 AM	simon (at) simonandkate (dot) net	Comment #4 New Attachment: style.txt	Reply to this comment
Good load Frame source dump attached. Twice the size... The bad load is missing all the style commands at the top.

04/28/2009 04:42:12 AM	simon (at) simonandkate (dot) net	Comment #3 New Attachment: nostyle.txt	Reply to this comment
[Show Quoted Text - 14 lines][Hide Quoted Text] I seem to remember an issue similar to this quite a while ago that was related to having the $conf[compress_pages] set to true. IIRC, there was a static variable somewhere in the call stack that was not acting like a static. Anyway, I haven't seen this happen in a while, and when it did happen, it wasn't restricted to just Ansel and/or Trean. Can you 1) view the source of the page when it come back unstyled and see if it is really just missing the style, or if it's actually missing part of the end of the page as well? and 2) look to see if you have $conf['compress_pages'] enabled...and if you do, try disabling it and see if it helps... Well! Very interesting... Attached file nostyle.txt is the frame source from a "bad" load. I will attach the "good" load text next (I can't attach multiple files in a comment?) The Bad load is missing a lot of data. I *do* have compress pages on, will try without it for a while too.

04/28/2009 03:51:30 AM	Michael Rubinsky	Comment #2 State ⇒ Feedback Summary ⇒ Ansel randomly loads with no formattingI h	Reply to this comment
I seem to remember an issue similar to this quite a while ago that was related to having the $conf[compress_pages] set to true. IIRC, there was a static variable somewhere in the call stack that was not acting like a static. Anyway, I haven't seen this happen in a while, and when it did happen, it wasn't restricted to just Ansel and/or Trean. Can you 1) view the source of the page when it come back unstyled and see if it is really just missing the style, or if it's actually missing part of the end of the page as well? and 2) look to see if you have $conf['compress_pages'] enabled...and if you do, try disabling it and see if it helps...

04/28/2009 02:01:08 AM	simon (at) simonandkate (dot) net	Comment #1 State ⇒ Unconfirmed New Attachment: ansel.jpg Patch ⇒ No Milestone ⇒ Queue ⇒ Ansel Summary ⇒ Ansel randomly loads with no formatting Type ⇒ Bug Priority ⇒ 1. Low	Reply to this comment
About 10% of the time Ansel is called on to load a page, it loses all of its formatting and displays as per the attached screenshot. Re-loading the page fixes it most of the time, but again sometimes it randomly repeats it. Nothing is logged to HTTPD error logs, and access logs show no different entries on a successful load to a bad one. Trean does it too. No other Horde apps in my stack do it (Turba, Kronolith, Dimp, Gollem, Ingo, Imp, Mnemo, Passwd, Nag). I'm running Horde 3.3.4-RC1, Ansel 1.0.1-cvs, with Horde accessed by Apache reverse proxy.