My Technical Blog - Latest Comments

Re: About

Colin M — Wed, 09 Nov 2016 12:16:00 -0000

That backend is very slow for normal write operations. You should use Cm_Cache_Backend_File if you just have one machine.

Re: About

Kim K. — Tue, 08 Nov 2016 13:03:40 -0000

Hi Colin,

Is this current for Magento 1.9.x?
https://github.com/Vinai/Sy...

We're looking into speeding up the Add to Cart actions. Tried all else so this is next.

Thanks

Re: About

Colin M — Mon, 25 Jan 2016 11:45:55 -0000

Well you can always download it and try it on your test environment, which I'm sure you have because surely you aren't asking me to tell you that it's all clear for you to install it on your very old an no doubt begging to be hacked production installation. right? :)

I don't know what to make of the conflicting statements that you just don't generate revenue on your website but without an updated payment extension you will be put out of business.. If you're not backporting every security update then eventually you *will* get hacked. If you're somehow certain that you have no security risks then the easiest way to keep operating would be to modify the SecureSubmit extension as necessary (no idea what is needed, just assuming that it will need minor changes to work with that old of a version). Perhaps a fully hosted solution like Shopify would be more appropriate for your current business needs?

Re: About

thasselbeck — Sat, 23 Jan 2016 17:52:55 -0000

Do you know if Heartland's SecureSubmit Payment Module will work with an older version of Magneto? Magento Connect states Compatible with: 1.5, 1.6, 1.6.1, 1.6.2.0, 1.7, 1.8, 1.8.1

I am presently running Community Ver. 1.3.2.4 and been using Heartland's WebConnect. Just got a letter from Heartland saying WebConnect is being discontinued and I need to switch to SecureSubmit.

I am not about to upgrade my Magento site to the latest version of community since I just don't generate the revenue from the website.

Any insight would be appreciated since effect 4/1/2016 Heartland's Webconnect will no longer process credit card which then puts me out of business.

Re: About

Colin M — Tue, 17 Nov 2015 11:25:07 -0000

Hi Abishek. There is no code that relates to the Mage_Catalog or other models as it is not a drop-in replacement. You could use it as a base to create your own Mage_Catalog replacement but it would still be a lot of work. I updated the README to try to make this more obvious.

Re: About

Abhishek Pandey — Tue, 17 Nov 2015 03:36:04 -0000

Hi Colin,
I will start new Ecom website using Magento (the idea is to use mongodb for some modals for performance improvement) so then I came across your module on github. I was going to use your https://github.com/colinmol... module. But before I dive deep into it can you help me answer couple of questions . Would be of grt help.

1. Will this module work from Magento Admin Panel also. I mean we don't have to do any magento core code changes and Admin Grid and all will work and they will fetch the data from new MongoDb not Mysql.
2. Does it support all the modals of Mangento or few of them . Can you please name them which all modals are stored in MongoDB (and not using Mysql for it).

Thanks
Abhishek

Re: About

Colin M — Mon, 16 Nov 2015 13:20:59 -0000

Hi Alessandro, please report the issue on Github and make sure you are using the latest version (master on github). Also, I strongly recommend against using the same Redis instance for both cache and sessions (use separate instances listening on different ports/sockets).

Re: About

Alessandro — Mon, 16 Nov 2015 06:53:46 -0000

Hi Colin, we are using you Magento Redis Module, but we found a problem when we flush cache and we don't clean Session, always in redis, sometimes and only someone go on page 500 error, and we find that the problem is on line 211 in file /lib/Cm/Cache/backend/Redis.php, stack overwlow error.

Re: View and Filter Orders Grid with Product SKU

Colin M — Tue, 03 Nov 2015 10:51:51 -0000

It may be conflicting with another module, or you didn't clear the config cache, or you simply didn't install it right. :P

Re: View and Filter Orders Grid with Product SKU

Ralphy — Tue, 03 Nov 2015 10:25:49 -0000

Not working for me on Magento 1.7.2.0. It doesn't even show the column on the backend.

Re: About

Andrea Merli — Thu, 10 Sep 2015 10:13:25 -0000

Hi Colin,

thanks for your work.
I've a little question can I use Cm_Cache_Backend_Redis
with redis cluster out of the box?

Thanks

Re: Re: Using Redis as a Cache Backend in Magento

Colin M — Mon, 06 Jul 2015 10:11:38 -0000

Sounds like something is wrong but I have no idea what...

Re: Re: Using Redis as a Cache Backend in Magento

Radosław Zagórski — Mon, 06 Jul 2015 05:08:09 -0000

Thanks, I use seperate Redis instances for env. And it works great!

But i found sth strange when i use backend redis in redis db I see a lot of redis keys (eg. "zc:k:3ea_CONFIG_GLOBAL_CRONTAB") when i use in this time frontend action (eg. add product to basket) the backend keys disappearing and i see only frontend keys (eg. "zc:k:3ea_DB_PDO_MYSQL_DDL_sales_flat_quote_item_1") is it correct?

Re: Re: Using Redis as a Cache Backend in Magento

Colin M — Fri, 03 Jul 2015 15:14:46 -0000

It *should* be safe to use the same instance for two stores due to Mage_Core_Model_Cache and the cache_id_prefix, but I still would not recommend it. At minimum I would recommend using a different database index for each, but for best performance I would recommend entirely separate Redis instances for each environment. This requires creating extra init scripts and using different port numbers or unix sockets, but is worth the effort, IMO.

Re: Re: Using Redis as a Cache Backend in Magento

Radosław Zagórski — Fri, 03 Jul 2015 09:33:20 -0000

Hi Colin, i have one server with magento where are two magento instances (production and test). I started to use redis in backend for both and there is a problem. Redis has a tags for both instance which first create a tag in cache is write to redis. Is it possible to change redis key for instances?

Re: About

Angel Martin — Tue, 16 Jun 2015 04:41:43 -0000

Hi Collin, we need to add the product name to orders and found your Cm_OrderProducts which seems to do in a very simple way what we need. We do not have modman and just copied the files to the directories according to the modman file as you suggest another friend in this blog. After cleaning cache we are not able to see this new column in the Orders grid. Are we missing something? How can we troubleshoot it? Thanks a lot

Re: About

Philip Lee — Wed, 27 Aug 2014 22:01:20 -0000

Great extension. I have my admin on a separate server and subdomain from my app servers. I can't clean the stuff that the app servers make from the admin server. It looks like the app servers make stuff that looks like "zc:ti:109_", while the app servers keep trying to delete stuff that looks like "zc:ti:403_". After a lot of poking around, I tried running this: "echo Mage::app()->getCache()->getOption('cache_id_prefix');" from both kinds of servers. The admin server returned "403_" while the app servers returned "109_". Any idea why this could be happening, and what I could do to fix it. Thank you.

Re: Hiding “Out of Stock” items in Layered Navigation

shilpa verma — Tue, 26 Aug 2014 03:44:25 -0000

hi
i want to know that how to add 'show more' link in layered navigation in magento so that if more than three attributes are there then there should be 'show more' link and after click on 'show more' link the rest attributes are also start to show.
plz suggest
thank u
regards

Re: About

Colin M — Thu, 24 Jul 2014 13:13:18 -0000

Make sure you are using the latest version from github and tune the configuration to your liking. Infrequent locking issues are not a huge concern; don't expect to never get them.

Re: About

Kishan Rajdev — Thu, 24 Jul 2014 06:06:47 -0000

Hello Colin,

I am currently using redis for my website. It works fine,except certain scenarios. Checked error log and showing session is getting locked. On refreshing the session. It again start working. Can you please help to resolve this query?

Re: Re: Using Redis as a Cache Backend in Magento

stevether — Wed, 23 Jul 2014 20:52:10 -0000

This module may help once you have Redis set up
https://github.com/steverob...

Re: Yet Another “Hiding Out-Of-Stock Products” Update

rohit patel — Wed, 02 Jul 2014 10:50:39 -0000

i am apply filter in the list.php file like this
protected function _beforeToHtml()
{
$collection->addAttributeToFilter(‘listhidden’, array(‘eq’=> 0 )) //custom attrib ID
->addAttributeToSelect(‘*’)
->setVisibility(Mage::getSingleton(‘catalog/product_visibility’)->getVisibleInCatalogIds());

it is work good but in the layer category filter they show incorrect product count
can you please help for this..

Re: Efficient Asset Management with Multiple Merged Asset Groups

Colin M — Mon, 02 Jun 2014 11:18:25 -0000

Thanks for the link. Yes, the same concept, just a different implementation. Mine doesn't require a core rewrite or use any additional xml traversal, modify xml attributes real-time, use expensive xpath queries or depend on arbitrary node names (params). It also can be used outside of the head block. I tried to make the solution as simple as it could possibly be.

Re: About

Colin M — Mon, 02 Jun 2014 10:51:58 -0000

Yes, that is correct. If you think there is a bug please open an issue on the github page. If you can reproduce the issue that would be fantastic. I definitely think the locking code could be improved, I just don't know how so code review is welcome.

Re: About

James D — Mon, 02 Jun 2014 06:13:03 -0000

Hi Colin,

We're using your Cm_RedisSession_Model_Session on our Magento site and in general it works great apart from the odd occasion where sessions get locked for a large amount of time. I've been looking into this and I was just wondering whet the following code chunk is trying to do:

// Otherwise, add to "wait" counter and continue
else if ( ! $waiting) {
$i = 0;
do {
$waiting = $this->_redis->hIncrBy($sessionId, 'wait', 1);
} while (++$i < $this->_maxConcurrency && $waiting < 1);
..

Is the 'while (++$i < $this->_maxConcurrency ..' just there to catch situations where the waiting state has somehow incorrectly become less that 0, or am I missing soemthing?

Cheers,
James