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Reply to topic   Topic: redis or memcache(d)
Author
sailor



Joined: 17 Apr 2015
Posts: 26
Location: US

PostPosted: Tue 10 Sep '19 12:20    Post subject: redis or memcache(d) Reply with quote

I have Wordpress running and trying to get LiteSpeed cache plugin working. I tried memcache (seems to be quite a bit of confusion or looseness in whether it's memcache or memcached) getting litespeed to use it. But, it doesn't recognize it's there. One of the odd things on the plugin page it states that litespeed doesn't work unless you use their web server. Yet, when you look at a web page, it has their branding on it that it was optimized.

So, I tried redis, but it seems to be a dead on Windows and inforation is very slim. I cannot get it loaded in php 7.3.9 (phpinfo page doesn't show it). I tried various dll versions from https://pecl.php.net/package/redis. I did come across someone stating that igbinary also needed to be enabled, but that didn't help.

Any know what might be wrong?
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James Blond
Moderator


Joined: 19 Jan 2006
Posts: 6714
Location: Germany, Next to Hamburg

PostPosted: Wed 11 Sep '19 13:34    Post subject: Reply with quote

I use redis[1]. Yes, it is not the latest version, but it works fine.
For php I use x64 Thread safe 7.3 [2] with the redis 4.2 driver [3]

I also changed the session handler from files to redis

Code:

[Session]
; Handler used to store/retrieve data.
; http://php.net/session.save-handler
session.save_handler = redis
session.save_path = "tcp://127.0.0.1:6379"



[1] https://github.com/microsoftarchive/redis/releases/download/win-3.0.504/Redis-x64-3.0.504.msi

[2] https://windows.php.net/downloads/releases/php-7.3.9-Win32-VC15-x64.zip

[3] https://windows.php.net/downloads/pecl/releases/redis/4.2.0/php_redis-4.2.0-7.3-ts-vc15-x64.zip
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sailor



Joined: 17 Apr 2015
Posts: 26
Location: US

PostPosted: Wed 11 Sep '19 19:41    Post subject: Reply with quote

Thank you, those settings definitely helped. But I also found another blunder, my php.ini was looking at a prior extension dir version of php.

It seems to be working ok now.

Code:

extension=igbinary
extension=redis
session.save_handler = redis
session.save_path = "tcp://127.0.0.1:6379"
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James Blond
Moderator


Joined: 19 Jan 2006
Posts: 6714
Location: Germany, Next to Hamburg

PostPosted: Thu 12 Sep '19 11:29    Post subject: Reply with quote

make sure that you always have the full path in the extension dir settings

e.g.
Code:

extension_dir = "C:\php73\ext"
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alexarun



Joined: 08 Jan 2020
Posts: 1
Location: USA

PostPosted: Wed 08 Jan '20 14:30    Post subject: instagram pva accounts Reply with quote

Spam :: Removed
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knopfler1980



Joined: 31 Mar 2020
Posts: 4
Location: Spain, Madrid

PostPosted: Tue 31 Mar '20 11:58    Post subject: Re: redis or memcache(d) Reply with quote

sailor wrote:
(seems to be quite a bit of confusion or looseness in whether it's memcache or memcached)


Hi.

I had the same worry and I think is replied in stackoverflow, where they say the client is memcache and the "service"(windows)/daemon is memcached: https://stackoverflow.com/questions/1825256/memcache-vs-memcached

Copy from answer author (sorry for the break): Mez
Here is a quick backgrounder in naming conventions (for those unfamiliar), which explains the frustration by the question asker: For many *nix applications, the piece that does the backend work is called a "daemon" (think "service" in Windows-land), while the interface or client application is what you use to control or access the daemon. The daemon is most often named the same as the client, with the letter "d" appended to it. For example "imap" would be a client that connects to the "imapd" daemon.

This naming convention is clearly being adhered to by memcache when you read the introduction to the memcache module (notice the distinction between memcache and memcached in this excerpt):

Memcache module provides handy procedural and object oriented interface to memcached, highly effective caching daemon, which was especially designed to decrease database load in dynamic web applications.

The Memcache module also provides a session handler (memcache).

More information about memcached can be found at http://www.danga.com/memcached/.

The frustration here is caused by the author of the PHP extension which was badly named memcached, since it shares the same name as the actual daemon called memcached. Notice also that in the introduction to memcached (the php module), it makes mention of libmemcached, which is the shared library (or API) that is used by the module to access the memcached daemon:

memcached is a high-performance, distributed memory object caching system, generic in nature, but intended for use in speeding up dynamic web applications by alleviating database load.

This extension uses libmemcached library to provide API for communicating with memcached servers. It also provides a session handler (memcached).

Information about libmemcached can be found at http://tangent.org/552/libmemcached.html.
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