How do i test if cache is working

L

Ledgemonkey

Member
#1
#1
what does this mean and how do you use it...?

7. Verify if pages are served from LSWS cache

Since 4.0.19 release, LiteSpeed outputs a response header “X-LiteSpeed-Cache: hit” if a request is served from cache.

Since 4.1.1 release, LiteSpeed outputs a response header “X-LiteSpeed-Cache: hit,private” if a request is served from private cache.
 
W

webizen

Well-Known Member
#2
#2
A server response has headers. You can look at via firebug or run command line like 'curl -I http://example.com/path/to/resource'
Connection:Keep-Alive
Content-Encoding:gzip
Content-Length:10108
Content-Type:text/html
Date:Thu, 14 Feb 2013 18:31:00 GMT
Keep-Alive:timeout=5, max=100
Server:LiteSpeed
Vary:Accept-Encoding
X-Litespeed-Cache:hit
X-Powered-By:pHP/5.3.20
Click to expand...
A response served from LS cache carries 'X-LiteSpeed-Cache' header as shown above
 
L

Ledgemonkey

Member
#3
#3
testing cache

Thanks for the reply:

I have this in htttp.conf:

LoadModule cache_module modules/mod_cache.so
<IfModule mod_cache.c>
<IfModule mod_disk_cache.c>
CacheRoot /tmp/diskcache/
CacheEnable disk /
</IfModule>
</IfModule>

I have files in tmp/diskcache/ 0/ 1/ 2/ 3/ a/ b/ c/ d/ e/ etc.

my LS cache settings are :

Storage Path:tmp/diskcache
Max Object Size: 128K

Cache Policy
Enable Cache: No
Cache Expire Time (seconds): Not Set
Cache Request with Query String: No
Cache Request with Cookie: No
Cache Response with Cookie: No
Ignore Request Cache-Control: No
Ignore Response Cache-Control: No
Enable Private Cache: Yes
Private Cache Expire Time (seconds): 120

I have this in my Magento .htaccess (which is not in root directory)

RewriteEngine on
RewriteRule cacheable/(.*\.php)?$ - [L,E=cache-control:max-age=120]

Getting this from response header..?
HTTP/1.1 200 OK
Date: Fri, 15 Feb 2013 13:27:44 GMT
Server: LiteSpeed
Connection: Keep-Alive
Keep-Alive: timeout=5, max=100
X-Powered-By: PHP/5.3.21
Set-Cookie: frontend=72ed1ce898e1dec005b44904ba6abc6a; expires=Fri, 15-Feb-2013 14:27:42 GMT; path=/; domain=www.staging.shushushops.co.uk; HttpOnly
Expires: Thu, 19 Nov 1981 08:52:00 GMT
Cache-Control: no-store, no-cache, must-revalidate, post-check=0, pre-check=0
Pragma: no-cache
Content-Type: text/html; charset=UTF-8
Vary: User-Agent
Vary: User-Agent

Any ideas where I'm going wrong...?

Many thanks...
 
L

Ledgemonkey

Member
#4
#4
cache testing update

I changed the Rewrite to:

RewriteEngine on
RewriteRule (.*\.php)?$ - [L,E=Cache-Control:max-age=120]

And tested using curl -I - X-Litespeed-Cache:hit was in the response , but testing again and has stopped showing up.

Can't be far away...!

Have tried different rules but not working...?

Any ideas...?

Thanks
 
L

Ledgemonkey

Member
#6
#6
now getting X-LiteSpeed-Cache: hit response

Hi,

Now getting the X-LiteSpeed-Cache: hit response....

Just need to get the rewrite rules correct so I don't cache the admin pages..in magento backend..
 
L

Ledgemonkey

Member
#8
#8
webizen said:
you can put the admin page url in the 'Do-Not-Cache URL' box. mouse over the 'i' pop-up window for more information.
Click to expand...
Can't seem to exclude the Magento admin area from cache , I've tried various settings in the 'Do-Not-Cache URL' box and in the .htaccess file but cant seem to be able to make it work.

Any idea what the correct code could be in the .htaccess file to exclude all urls which contain "admin"..?

Thanks
 
L

Ledgemonkey

Member
#10
#10
doesn't work tried all sorts...?

What re-write rules should i use in htaccess ?

If I use this RewriteRule (.*\.php)?$ - [L,E=Cache-Control:max-age=120] my pages break with Use Web Server Rewrites set to "yes" in amgento backend.

Thanks
 
W

webizen

Well-Known Member
#11
#11
The wiki post is assuming you do not have any rewrite rules for LS cache.

If you use rewrite rules for caching, you need to disable cache in Cache Policy. For non cache directory, you need add rules like
%

RewriteCond %{ORG_REQ_URI} !^/checkout/
RewriteCond %{ORG_REQ_URI} !^/downloader
RewriteCond %{ORG_REQ_URI} !^/admin
RewriteCond %{ORG_REQ_URI} !^/customer
Click to expand...
I would not recommend to set 'Use Web Server Rewrites' to Yes as these are LSWS specifics.
 
L

Ledgemonkey

Member
#12
#12
LS cache settings for Magento

Hi, thanks for the response, I seem to have it working using these settings

Enable Cache No
Cache Expire Time (seconds) Not Set
Cache Request with Query String Yes
Cache Request with Cookie Yes
Cache Response with Cookie Yes
Ignore Request Cache-Control Yes
Ignore Response Cache-Control Yes
Enable Private Cache Yes
Private Cache Expire Time (seconds)120

.htacess :

RewriteEngine on
RewriteCond %{ORG_REQ_URI} !^/checkout/
RewriteCond %{ORG_REQ_URI} !^/downloader
RewriteCond %{ORG_REQ_URI} !^/index.php/admin
RewriteCond %{ORG_REQ_URI} !^/customer
# cache for 2 mins for php pages only
RewriteRule (.*\.php)?$ - [E=Cache-Control:max-age=120]

I have set the Use Web Server Rewrites to "Yes" then put "index.php" in front of /admin above and taken out the "L" in [L,E=Cache-Control:max-age=120]

I will test further and update this thread...

Thanks for your help
 
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