Currently there are 3 possible values which we can receive in the header like A1, A2 and A3, and we have three different services running for each value like Service-A1, Service-A2 and Service-A3.
Right now routing is done based on the header value. If value in the header is A1, then it will go to Service-A1, if value in the header is A2 then it will go to Service-A2, and accordingly for A3.
Now, we have new service Service-MultiSupport which can work for all these three values. Now, we want to deploy this new service using canary deployment such that 20% of traffic should go to Service-MultiSupport, and rest of the 80% traffic should work as it is working currently which is header based.
Can anyone guide me how to achieve this canary deployment using Istio? I am new to Istio, I tried searching online but couldn't find the proper answer.
Please help if you can.
Thanks in advance.
Related
I am trying to modify an existing XML package of Aspdotnetstorefront Multistore. It's an internal XML package to show the variants of a certain product. What I did to start with was to copy-paste the whole code as is and throw it into a new custom XML package. The problem is that it works fine in the original package but not in the copied package. When I try to run it the function "AddtoCartForm" crashes the page and show the following error while display in red the line that contains the function call:
An HtmlHelper is required for this method. Make sure to specify one when you call the RunXmlPackage method
The format of the function is:
<xsl:value-of select="aspdnsf:AddtoCartForm(ProductID, VariantID, 1, 1, $SelectedSize, $SelectedColor)" disable-output-escaping="yes"/>
I removed the line with the function just to be sure and then everything else works fine. I have no idea what's wrong here. Everything is identical unless by the structure of the url which calls the package:
For the internal package it is: \product\123456
For the custom package it is: \topic\packagename?ProductID=123456
I checked the XML produced by the SPs, the runtime and requested data and it's basically the same in both cases. The ProductID and VariantID values are there. SelectedColor and SelectedSize are not in the XML (not even in the internal package) so it may be just providing null value and probably it's not necessary anyway.
And there is more. If I supress the productid value from the url like this:
\topic\packagename
It won't crash the page (but also won't render because there will be not be any value to process).
In any way I cannot see why it wouldn't work just passing the variable in the querystring (that is basically what it does in the original package even in a different format) and the var value (productid) it getting there. However it seems that it is indeed the url format that is not pleasing the package but it doesn't make too much sense to me. I am over this for several days already and nothing I do seem to produce any positive result. :-(
I looked up online for some documentation but didn't get lucky and didn't find absolutely anything. In extreme cases I try to reach the Vortx support (and they usually answers me giving some valueable clue) but this time it seems that for this specific issue there will not be any help unless I pay an obscene hour fee and unfortunately it's out of question... LoL!
Any idea?
UPDATE: We don't use Multistore regular search tool. Due to the nature of our products (recycled car parts) we have a custom search tool that will try to find 'similar' items that MAY fit the user needs when we don't have the EXACT part. I don't know if you are ware of but several mechanical car parts are interchangeable among different models and makes (like alternators, AC compressors, battery, suspension, cooling system, etc), so when one of our customers needs a part to fix his car he won't tell us the part code; instead he will tell us the car model, year, and generic name of the part so we will try to find the part for him. It does mean that a certain Corolla part will fit perfectly in a Honda Accord and so on. Some times we have some parts in stock that MAY fit his car but we are not absolutely sure. When it happens we will show those parts for the customer and he will decide if he can take his chances. For the sake of customer comfort we want to show all these parts in the same page, but since they normally are variants of different products we cannot use the regular product page for this purpose (because the product page will only show variants of ONE product at time). For this reason I am going to write a package - a modified version of the product page - that will do that but I am struggling with the AddtoCartForm function. In fact I JUST found a workaround by adding the item to the cart accessing directly the /shoppingcart/addtocart script and now my problem is being to force it return to a specific url after to add the item to the shopping cart...
The error has to do with the topic token able to properly get html helper filled out.
I do question why testing is being done on a topic. To test a new product xmlpackage I normally change change the xmlpackage for just one product in a testing environment.
If chaning the product xmlpackage isn't possible then I suggest using the XmlPackageController/engine instead. Which is documented on page https://help.aspdotnetstorefront.com/1000/xml_packages.htm under the heading of "Invoking XML Packages by Themselves". If using the XmlPackageController make certain that the allowengine attribute is set to true in the xmlpackage otherwise that will throw an error as well.
I am currently facing a problem to create my own classfiers. I already tried to build a NodeJS application and also create it using IBM's demo, but everytime I submit my ZIP folders to be created, I recieve the following error message:
Cannot execute learning task. : need at least 2 _positive_examples fields, (or 1 _positive_examples and 1 negative_examples field) to train a classifier. null specified.
However, when I tried to use the IBM Demo webapp using the .zip they provide (husky, beagle and cats.zip files) the classifier is successfully createdi
I have currently 2 zips (1 positive and 1 negative) each containing 50 files named from 1.jpg to 50.jpg.
Have any of you guys ever gone through this issue and found a way to handle it?
Thanks for the attention.
Best regards,
Enrico Bergamo
As per the discussion on the DeveloperWorks Forum ( https://developer.ibm.com/answers/questions/377690/error-400-when-trying-to-create-a-custom-classifie/ ), Your zip files are not really zips. It looks like all you have done is name your folder positive.zip.
Right click on each of the folders in turn and select create zip or compress as zip.
What this message indicates is that the service is not receiving any POST fields that end in '_positive_examples' which is necessary for a training request. So double check your form field name parameters.
From Google's documentation: https://cloud.google.com/appengine/docs/developers-console/#traffic-splitting, GOOGAPPUID value should be in range 0-999.
For now, its value is is a string, such as: xCgkQ3wMg28WhrgU.
Now I want to change my cookie to use a specific version on my GAE app,
does anyone know how is the GOOGAPPUID generated?
Update
Just found a trick.
The cookie's value is not random, I guess that it is a type of hashing and the cookie value for each version is fixed.
So, by trying many times and save the cookie value for each version, I can force to access to a version by changing the cookie to the value that corresponding with the version.
For example, suppose that I have 2 versions A and B. After trying, I see that GOOGAPPUID is xAAAA for version A, and xBBBB for version B.
Now, if I want to access version A, just change GOOGAPPUID to xAAAA.
Any idea?
I run IMDbAPI.com and have been using Bing's Search API for finding IMDb ID's from title searches. Bing is currently changing their API over to the Azure Marketplace (August 1st) and is no longer available for free. I started testing my API using Freebase to resolve these ID's and hit their 100k limit in the first 8 hours (my site currently gets about 3 million requests a day, but only 200-300k are title searches)
This is exactly why they offer the data dump files,
I downloaded most of the files in the Film folder but cannot find where they are storing the "/authority/imdb/title" imdb id namespace data.
https://www.googleapis.com/freebase/v1/mqlread?query={"type":"/film/film","name":"True%20Grit","imdb_id":null,"initial_release_date>=":"1969-01","limit":1}
This is how I'm currently accessing the ID.
Does anyone know which file contains this information? and how to link back to it from the film title/id?
That imdb_id property is backed by a key in the /authority/imdb/title namespace, so you're looking for the line:
/m/015gxt /type/object/key /authority/imdb/title tt0065126
in the file http://download.freebase.com/datadumps/latest/freebase-datadump-quadruples.tsv.bz2
That's a 4 GB file, so be prepared to wait a little while for the download. Note that everything is keyed by MID, so you'll need to figure that out first if you don't have it in your database.
The equivalent query using MQL instead of the data dumps is https://www.googleapis.com/freebase/v1/mqlread?query=%7B%22type%22%3a%22/film/film%22,%22name%22%3a%22True%20Grit%22,%22imdb_id%22%3anull,%22initial_release_date%3E=%22%3a%221969-01%22,%22mid%22:null,%22key%22:[{%22namespace%22:%22/authority/imdb/title%22}],%22limit%22:1%7D&indent=1
EDIT: p.s. I'm pretty sure the files in the Browse directory are going away, so I wouldn't depend on them even if you could find the info there.
The previous answer works fine, it's just that a snappier version of such a query could be:
query = [{
'type': '/film/film',
'name': 'prometheus',
'imdb_id': null,
...
}];
The rest of the MQL request isn't mentionned as it doesn't differ from the aforementioned. Hope that helps.
i have installed wordpress and i i have installed couple of plugins and i have got two themes already came with wordpress.
What i am asking about today is : what does the Plugins & Theme string value in database mean ?
Example [When plugins are active] , there is a value on table of :
a:3:{i:0;s:19:"akismet/akismet.php";i:1;s:9:"hello.php";i:2;s:37:"one-click-logout/one-click-logout.php";}
Example [When there are themes on the Themes folder] , there is a value on table of :
a:2:{s:12:"twentyeleven";s:7:"/themes";s:9:"twentyten";s:7:"/themes";}
I could get an explanation of what does the "a" and "i" mean from HERE , but the "s:" is what i do not know what does it mean.
If i tried to change the s:37 to s:6 or any other value , the plugin becomes deactivated , so the s:37 <<< the 37 must mean something or related to the plugin somehow and that`s what i am trying to find out.
's'+number is just number of characters.
so s:12:"twentyeleven" means string of length 12.
I suggest asking this in the WordPress Answers rather than here. This is a very specialist question.
The whole point of WordPress is that you DON'T need to get into the guts of the database - in fact it is highly discouraged since the data may well change between releases.
WordPress has loads of API functions that allow you to make use of it's power without needing to get into the complexities of the database. That is one of it's key strengths.
Even as a WordPress programmer or theme designer, you won't need this information - ever. You would only need to know it if you are planning to write/amend the source of WordPress itself, in which case, you are definitely in the wrong place.