Well the problem occured again. I did not get Rolf's mousetrap email, because the
"<!-- Html blob 'PanelBAS' does not exist -->" is not the type of error that produces the "Ooops" error page.
I have had to remove all GCBs now because it kept happening on a live site and there was no way of me being notified, until I (or someone else) noticed the missing content.
BUT... before I removed the GCBs I took a full backup of the site and DB (snapshot if you like)
whilst it was in this error state. This has enabled me to do some investigations.
When I look at the files in the snapshot, the only ones with modification dates/times close to the time the CGBs failed are a series of cache files in the tmp/templates_c folder. There is one file for each GCB. All the 18 GCBs on the home page each have a modification time/date of 10:26 on the morning that the site crashed.
One such file is called:
/tmp/templates_c/058e944f1e08e0f59398246c1c397fe32f28c988.globalcontent.PanelBMS.php
("PanelBMS" is the name of the GCB.)
Here is the contents of that file:
Code: Select all
<?php /* Smarty version Smarty-3.1.16, created on 2014-03-04 10:26:34
compiled from "globalcontent:PanelBMS" */ ?>
<?php /*%%SmartyHeaderCode:41932080652f37a820d8479-69929424%%*/if(!defined('SMARTY_DIR')) exit('no direct access allowed');
$_valid = $_smarty_tpl->decodeProperties(array (
'file_dependency' =>
array (
'058e944f1e08e0f59398246c1c397fe32f28c988' =>
array (
0 => 'globalcontent:PanelBMS',
1 => 1393928794,
2 => 'globalcontent',
),
),
'nocache_hash' => '41932080652f37a820d8479-69929424',
'function' =>
array (
),
'version' => 'Smarty-3.1.16',
'unifunc' => 'content_52f37a820e7de1_82002951',
'has_nocache_code' => false,
),false); /*/%%SmartyHeaderCode%%*/?>
<?php if ($_valid && !is_callable('content_52f37a820e7de1_82002951')) {function content_52f37a820e7de1_82002951($_smarty_tpl) {?><!-- Html blob 'PanelBMS' does not exist --><?php }} ?>
There are 18 files like this; one for each of the 18 GCBs on the home page of the site.
Then I checked the error log. There is only one error logged on that morning and it is timed at the same minute that all the GCB cache files above were last modified, here it is:
[04-Mar-2014 10:26:34 Europe/London] PHP Warning: Invalid argument supplied for foreach() in /home/three6cu/public_html/modules/Twitter/lib/class.Tweet.php on line 204
Line 204 of that code in /modules/Twitter/lib/class.Tweet.php is the foreach in here:
Code: Select all
public static function parseTimeline($entries)
{
$timeline = array();
foreach ($entries as $entry) {
if(is_object($entry))
{
$timeline[] = self::createFromObject($entry);
}
else
{
// TODO: FIX THIS ISSUE... Here I cannot do a ->asXML because it's not an object....
// $timeline[] = self::createFromXml($entry->asXml());
}
}
return $timeline;
}
(That's not my
TODO comment, by the way).
There is a call to the Twitter module at the top of the home page before all the GCBs.
Here is the code from the same cache file
now, whilst the site is working OK:
Code: Select all
<?php /* Smarty version Smarty-3.1.16, created on 2014-03-19 14:01:08
compiled from "globalcontent:PanelBMS" */ ?>
<?php /*%%SmartyHeaderCode:12871125495329a324538d74-53344239%%*/if(!defined('SMARTY_DIR')) exit('no direct access allowed');
$_valid = $_smarty_tpl->decodeProperties(array (
'file_dependency' =>
array (
'058e944f1e08e0f59398246c1c397fe32f28c988' =>
array (
0 => 'globalcontent:PanelBMS',
1 => 1391687213,
2 => 'globalcontent',
),
),
'nocache_hash' => '12871125495329a324538d74-53344239',
'function' =>
array (
),
'has_nocache_code' => false,
'version' => 'Smarty-3.1.16',
'unifunc' => 'content_5329a32455d4e6_64794632',
),false); /*/%%SmartyHeaderCode%%*/?>
<?php if ($_valid && !is_callable('content_5329a32455d4e6_64794632')) {function content_5329a32455d4e6_64794632($_smarty_tpl) {?><?php if (!is_callable('smarty_function_global_content')) include '/home/three6cu/public_html/plugins/function.global_content.php';
if (!is_callable('smarty_function_cms_module')) include '/home/three6cu/public_html/plugins/function.cms_module.php';
if (!is_callable('smarty_function_SocialBookmarking')) include '/home/three6cu/public_html/plugins/function.SocialBookmarking.php';
?><div class="Anchor"><a id="BMS" name="BMS"></a></div>
....rest of HTML/PHP removed....
<?php }} ?>
So - it looks to me like the Twitter module falls over and this breaks the GCBs...somehow?
I'm hoping this info helps someone cleverer than me solve the issue.
Here is my system info:
----------------------------------------------
Cms Version:
1.11.10
Installed Modules:
CMSMailer:
5.2.2
CMSPrinting:
1.0.5
FileManager:
1.4.4
MenuManager:
1.8.6
MicroTiny:
1.2.6
ModuleManager:
1.5.5
News:
2.14.2
Search:
1.7.11
ThemeManager:
1.1.8
CMSForms:
1.10.14
Twitter:
2.0.2
FormBuilder:
0.7.3
CGExtensions:
1.38.1
CGSimpleSmarty:
1.7.1
CGBlog:
1.10.3
TinyMCE:
2.9.12
Archiver:
0.2.6
Statistics:
1.1.3
SEOTools2:
1.2.1
Notifications:
1.1
Config Information:
php_memory_limit:
process_whole_template:
max_upload_size:
32000000
url_rewriting:
mod_rewrite
page_extension:
query_var:
page
image_manipulation_prog:
GD
auto_alias_content:
true
locale:
default_encoding:
utf-8
admin_encoding:
utf-8
set_names:
true
Php Information:
phpversion:
5.4.21
md5_function:
On (True)
gd_version:
2
tempnam_function:
On (True)
magic_quotes_runtime:
Off (False)
E_STRICT:
0
E_DEPRECATED:
0
memory_limit:
128M
max_execution_time:
120
output_buffering:
4096
safe_mode:
Off (False)
file_uploads:
On (True)
post_max_size:
8M
upload_max_filesize:
32M
session_save_path:
/tmp (1777)
session_use_cookies:
On (True)
xml_function:
On (True)
xmlreader_class:
On (True)
Server Information:
Server Api:
cgi-fcgi
Server Db Type:
MySQL (mysql)
Server Db Version:
5.1.73
Server Db Grants:
Could not find a suitable "GRANT ALL" permission. This may mean you could have problems installing or removing modules. Or even adding and deleting items, including pages
Server Time Diff:
No filesystem time difference found
----------------------------------------------
.