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Templates intermittently are not loaded at all
Hi all,
I have a Drupal site which uses a dedicated Varnish server. Most pages are set to be accessed by Varnish every 30 minutes. Still, because of the sheer number of pages, Varnish is hitting Drupal quite a lot (which is why I'm putting this in the high-performance group).
Once in a while (can be once a week), on the production server, Drupal does not load certain template (tpl.php) files, instead leaving a blank space in the markup where their output should be.
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Long Cache times
We host splendidtable.org and a few other sites at a well known Drupal provider that uses Amazon EC2 to host sites. We found A. we were hitting the limits of our server capacity in terms of # of php workers available, and B. that the cost of adding additional server capacity was cost prohibitive for us so I set about to make everything more efficient ie .. long cache times. The idea being that most content does not change once it is created so why waste cpu cycles on recreating it all the time?
Read moreX-Drupal-Cache for Drupal 7 website always hits MISS
Hi,
When checking on http://www.isvarnishworking.com one of Drupal 7 websites, I always see:
The url we checked: thewebsite.tld
HTTP/1.1 200 OK
Server: Apache/2.2.15 (CentOS)
X-Powered-By: PHP/5.3.3
X-Drupal-Cache: MISS
Expires: Sun, 19 Nov 1978 05:00:00 GMT
Cache-Control: no-cache, must-revalidate, post-check=0, pre-check=0
ETag: "1379724987"
Content-Language: en
X-Generator: Drupal 7 (http://drupal.org)
Link: http://thewebsite.tld/; rel="shortlink",http://thewebsite.tld/; rel="canonical"
Last-Modified: Sat, 21 Sep 2013 00:56:27 GMT
APC Configuration on Drupal 7 Site
Hi everyone,
I am currently working on the scalability of a site and had APC installed. I'm still new at this and just followed some tips on setting it up from this site: http://andrewdunkle.com/how-install-apc-alternative-php-cache-drupal-7
I followed and applied the settings for the shm-size etc. so I'm not sure what I'm currently doing wrong.
The apc.php file is also on our root domain. (http://www.atheistrepublic.com/apc.php) What I'm wondering is why the graphs are changing everytime i refresh the apc.php page?
Is that a normal thing or I have a setting I didn't add?
Read moreHow can i install APC using cPanel?
I have installed Boost module for my website to speed up it and it works excellent but as i hosting my site on a shared server, i want to speed up php by using APC but i don't know ho to install it through cPanel. I have read many tutorials but none of them explained how to install APC without using SSH and command line. I am not expert in command line ans SSH and i like to know how i can do it without using command line and SSH.
Read moreExample of interactive big sites running Drupal
Hi,
I'm trying to find some examples of big interactive sites running Drupal in a fast/decent manner. By big I mean more than 1+ million page views per day. By interactive I mean with many logged in users (20000+ logged in/day out of over 500K registered) and with content being continually posted/updated (150000+ nodes). So I'm not really interested in a site that has tons of pageviews but just a few logged in users (and the rest hit varnish or other long-term cache).
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Handling large spike of un-cachable requests.
Hi all.
I've been tasked with building a high performance, high capacity website for a client and so have been reading up on best practices. I'm getting familiar with the cache based approach for both authenticated and anon. users, APC, varnish etc - however I'm finding it difficult to find best practices regarding non-cachable requests.
-- EXAMPLE --
Suppose my website were to give away 500 free donuts to the first 500 people who correctly answer a multiple choice question. This figure would be stored in a field called "QTY" on the "freebie" content type.
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Caching breakdown
Hey all-
While we found plenty of info on caching on D.O we are looking for more of an hierarchical breakdown to help our content owners get more involved with caching their evergreen content for longer periods than the content that changes more frequently. Can anyone briefly write down the order in which the various components cache? IOW, does one supersede another? I wrote down my impressions below:
1) Page
2) Panel
3) Block
4) View
The way I understand it is Page cache will trump all other cache settings.
Read moreRedundancy?
I am concerned that I might have Redundancy with the Cache features / changes I have just made
Drupal 7 on a VPS
php.ini
has php memory set to 256MB
and the following features have been enabled:
VPS
- PHP XCache Support:
- Page Speed Optimization
- Php 5.4 Fast CGI
- PHP cache:
Improves PHP performance with a compiled code cache (XCache).
Drupal
- Boost
- Performance
everything enabled EXCEPT ""Cache pages for anonymous users"" Boosts states to turn this off
Map all the select queires to slave
Hi,
*I have a heavy traffic sites approximately 50k users per day and it is a Indian News portal.
*The site is running on Druapl 7.22 and Mysql 5.5
* The site has a Load Balancer ,2 Application servers with 100GB of Hard Disk and 20GB of RAM each and 2 DB Servers(Master/Slave).
*The front end caching mechanism is varnish with 10GB of Storage Size and CDN.
The issue is even though we have these much things, the slow queries affects the sites performance and every day the sites goes down. So I am planning to map all select queries to Slave or any one suggest to get rid of this issue.
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