• Commerce,  Episerver,  Random thoughts,  ranting,  Tips

    Why you should upgrade to the latest version

    I made no secret that I’m a die-hard advocate for upgrading to latest EPiServer CMS/Commerce version. There are several reasons for that, mostly from new shiny features that your businesses dearly need, new big performance improvements that your customers firmly demand. But there is another, not so obvious reason: support. Let me tell you a story. This morning we received a support case from support team. A customer recently upgraded from Commerce 7.5 (Eww) to 11.7 (Yay!), things went well except they had a small problem with data displaying in Catalog UI. Some of the properties were not properly displayed, but they are still showing correct in Commerce Manager.

  • Episerver

    World forums support vote up/down now, and what does that mean for you

    I really wanted to post this in the official blog, however we don’t have a “World” blog, and this does not really fit into “Commerce blog” which we (Commerce development team) usually use for official announcements, so I have to use my personal blog instead. If you haven’t noticed, then you can now vote up, or down a post in World forum. Thanks to the hard work of my colleagues in World development team, that feature went on live today! (Of which I’m very excited) If you have been using StackOverflow (as as developer, you likely have), then you know the meaning of voting up and down. The idea is…

  • Commerce,  Episerver,  ServiceAPI,  Tips

    ServiceAPI + Postman, a match in heaven

    No, it’s just a note-to-self. A lot of customers have been using ServiceAPI, and to great successes. We also have very good documentation here – of which largely thanks to my colleague Mark Hall. But what if you want to play around with ServiceAPI and don’t want to write app/build/run it yourself? The answer is simple: There are many REST Clients can do the job for you, and Postman is usually regarded as the best/most popular one. But, the documentation are for C# client, it can be quite confusing to use Postman to work with ServiceAPI for the first time (or times). If you are experienced with Postman, great! But…

  • Catalog,  Commerce,  Episerver,  Performance,  Tips,  Uncategorized

    Mass update catalog entries

    This is something you don’t do daily, but you will probably need one day, so it might come in handy. Recently we got a question on how to update the code of all entries in the catalog. This is interesting, because even thought you don’t update the codes that often (if at all, as the code is the identity to identify the entries with external system, such as ERPs or PIMs), it raises a question on how to do mass update on catalog entries. Update the code directly via database query. It is supposedly the fastest to do such thing. If you have been following my posts closely, you must…

  • Catalog,  Commerce,  Episerver,  Performance,  SQL Server

    A curious case of SQL Server function

    This time, we will talk about ecfVersion_ListFiltered, again. This stored procedure was previously the subject of several blog posts regarding SQL Server performance optimizations. When I thought it is perfect (in term of performance), I learned something more. Recently we received a performance report from a customer asking about an issue after upgrading from Commerce 10.4.2 to Commerce 10.8 (the last version before Commerce 11). The job “Publish Delayed Content Versions” starts to throw timeout exceptions. This scheduled job calls to a ecfVersion_ListFiltered to load the content versions which are in status DelayedPublish, it looks like this when it reaches SQL Server: [crayon-5d554958e4a4b445045707/]This query is known to be slow. The…

  • Commerce,  Episerver,  Order

    Loading carts in a load balancing environment

    UPDATE 1: Apparently HttpContext.Current.Request.AnonymousID already uses the cookie internally, so there might be something that makes it stop working. I’ll update when I found out. Today we received a support ticket as customers seeing corrupted carts data being lost – line items with invalid data, duplicated line items etc. “Corrupted data” is one of the alarming words that we take very seriously, so I decided to jump on it right away. The setup is a load balancing environment, and the problem only happens with anonymous users. However, it can be “fixed” by turning on the sticky sessions mode. So basically, instead of having sessions on the memory of a server (so sessions…

  • Book,  Commerce,  Episerver

    Announcing a new book: Episerver Commerce: A problem – solution approach

    More than one year ago, I announced that I was working on a book – a first Episerver Commerce book ever. It has been a work in progress until recently – and I am still adding updates here and there. The book has received quite positive feedback (I’m happy to say that everyone is nice enough to not tell me “Your book sucks”. Thanks, everyone). Am I happy with it? Yes, of course, proud even. But to be completely honest, I know something was missing.

  • Commerce,  Episerver,  Order,  Performance,  SQL Server

    Optimizing T-SQL COUNT

    This is a continuation of my previous post about paging in SQL Server. When it comes to paging, you would naturally want to know the total number of rows satisfying, so you can display some nice, useful information to your end-users. You would think, well, it’s just a count, and a simple query like this would be enough: [crayon-5d554958e5bf4933015632/] There should be nothing to worry about, right? Actually, there is. Let’s get back to the example in previous post – we have to count the total number of orders in that big table. [crayon-5d554958e5c00596060114/] Because ObjectId is the clustered index of OrderGroup_PurchaseOrder, I did expect it to be use that index…

  • Commerce,  Episerver,  Order,  Performance,  SQL Server,  Uncategorized

    The art of paging

    No this is not really “art” – I’m just trying to have a more clickbait title. It’s more about understanding what you have at your disposal and use them for your benefits – in this case – how new SQL statement can drastically improve your performance. In this blogpost we will look into paging feature of SQL Server. in Commerce we usually work with large set of data – millions of rows are fairly common, and it’s natural to load data by page. There is no point loading thousands, or even millions of rows in one go. First it’s not practical to display all of them. Second you’ll likely end…

  • Commerce,  Episerver,  Order,  Performance,  SQL Server,  Uncategorized

    Fixing a stored procedure

    At Episerver development team, we understand the importance of good performance. Who would not like a lightning fast website? We work hard to ensure the framework is fast, and we seize (almost) every opportunity to make it faster. You know in Commerce 10.2 we introduced a new cart mode – serializable cart, and it’s proven to bring great performance compared to the “old/traditional” approach. Our own tests showed an improvement of 3-5x times faster. But can it be even faster? Probably yes. And actually we did some improvements in later versions. In the scope of this blog post, we will just focus into a specific aspect – and to learn…