bestpractices | This is a repository for GigaSpaces ' best practices | Code Analyzer library
kandi X-RAY | bestpractices Summary
kandi X-RAY | bestpractices Summary
This is a repository covering some best practices for GigaSpaces XAP.
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QUESTION
I have a serverless function running Python 3.9 (technically Function App on Azure, but I'll refer to GCP Cloud Function since I found better documentation).
My serverless function is using requests.put a lot.
I wanted to add a retry mechanism to the request, so I can use the requests.Session() with some custom HTTPAdapter. If I reuse this session I'll have a retry mechanism and I'll squeeze some performance.
So basically I want to maintain persistent connections instead of creating a new connection upon every function invocation, and I got to this documentation of GCP Maintaining Persistent Connections.
The code snippet attached there is:
...ANSWER
Answered 2021-Jun-03 at 21:16GCP Cloud Functions will automatically clean up the session object once your function instance itself is turned down.
(The point of persistent connections is to maintain them across multiple sequential requests to that specific function instance.)
I suspect Azure Functions is similar, but don't quote me on that.
QUESTION
I am new to Gradle and trying to configure Spotbugs for my Spring Boot multi module project.
In my parent, build.gradle,
...ANSWER
Answered 2021-Mar-18 at 06:17The below works (some adjustments to make it work locally)
gradle - 6.5.1
QUESTION
Really struggling to identify the issue here. I'm attempting to containerize a WordPress site on my workstation for dev. purposes. (Disclaimer: somewhat new to Docker, currently using it on a few Laravel projects for the same purpose but have not yet integrated it in production).
Here is the related portion of my docker-compose.yml
ANSWER
Answered 2021-Jan-23 at 17:01without the npm err log i can only guess where the problem is.
probably the npm-cli is not able find the webpack-dashboard and webpack-dev-server command because it is not installed globally.
try to add the webpack-dashboard and webpack-dev-server to your scripts inside the package.json.
QUESTION
`i am having a problem with my show.blade.php template, everything works fine but when I click on a post in the index page it directs me to the /post/1 page without showing the post content only the extended layout. please help
Web.php
...ANSWER
Answered 2020-Dec-02 at 00:29Thats because when you register routes via
QUESTION
So I've been having a difficult time just to run a demo of Canada Post AddressComplete.
This is what the demo shows: https://www.canadapost.ca/pca/support/guides/bestpractices
This is the API setup: https://www.canadapost.ca/pca/support/guides/advanced#fm
I've put the following in a html file. Note that I basically just copied the top 2 code snippets from the API setup URL.
...ANSWER
Answered 2020-Aug-18 at 19:04May seem obvious; but, have you followed the steps on this page?
https://www.canadapost.ca/pca/support/guides/
When working with the API you will also need to setup the API key shown at step 2.
QUESTION
I'm getting started writing Google Cloud http Functions using Python and I would like to include unit tests. My function only responds to POST requests so the basic outline of my function is:
...ANSWER
Answered 2019-Jul-12 at 19:11Just dawned on me that I was rather over-thinking this somewhat. For the purposes of testing my code doesn't actually require a real Flask request passed to it, it merely requires an object that has the attributes my code refers to. For me, this will do:
QUESTION
I have the following .yml configuration to run my automated tests.
...ANSWER
Answered 2020-Mar-30 at 06:01The test files format should look like testAssemblyVer2: '**\*test*.dll', so you may
try the following format:
testAssemblyVer2: '**\Selenium3.Nunit.Framework.dll'
QUESTION
I have seen all these questions and resources, but neither can satisfy my concerns.
Cloud functions and Firebase Firestore with Idempotency
Firebase cloud function idempotency in docs
How to make idempotent aggregation in Cloud Functions?
If a function is executed more than once and both run at the same time, how can I know another one is running and safely discard it? Even if I write eventId somewhere to DB, there is still a chance the other function will run before I manage to write such information.
Can using Firestore transaction help with that? If I would write to a document based on eventId inside the transaction, is it safe to say any other function will hold till I release "the lock"?
The approach of using .set is not viable to me because some functions are generating a unique ID for documents so I would end up writing those multiple times anyway. Some other functions are pretty elaborate and generating (or rather transforming) a bunch of documents at the same time.
As much as I like the whole idea of cloud functions, I wish there was more of the baked-in solution for this. Why can't Firebase do basically what they want from developers? They could write eventId into some internal DB and prevent running function multiple times. Sounds really silly forcing everyone to handle it on their own.
ANSWER
Answered 2019-Dec-03 at 17:01Idempotency is difficult, and there is no One Correct Way to implement it. There are lots of options, and different situations to consider. On top of that, not all functions need to be idempotent, so it would be expensive and unnecessary to force it on all implementations. You have to use your best judgement, based on what the function has to do.
Bear in mind that idempotency is not the same as parallelism. You don't need to worry about a function being invoked twice at the same time with the same event. There's no need to worry about "locking" anything to prevent this from happening. All you need to worry about is making sure that a second invocation of a function doesn't do anything incorrect beyond what the first successful invocation would do.
For most functions, simply recording that a particular event ID happened successfully is enough. Future invocations can simply check to see if the event has been handled, and terminate early if so. You can store this wherever you want. Use a transaction if you want, to be safe. You should probably retain that record for at least a few hours.
Bear in mind that functions that perform multiple items of work will be increasingly difficult to make idempotent, as you might have to record whether or not each stage of work was completed successfully. Given the increasing level of difficulty, it's best if a function only commits a single change, then passes the result on to another function, maybe via a pubsub trigger with a payload that indicates what should happen next.
As you can see, it's not simple, and you have to think through it to handle things in a way that suits the requirement of your system.
QUESTION
I created a new Dev Express Winforms project using the XAF Wizard. Normally this works fine, however I have been playing with installing Dev Express from Nuget recently.
Following this excellent blog from Manuel Grundner
All the references in the new project create correctly except for Entity Framework.
When I try to run Tools->NuGet Package Manager->Manage NugetPackages for Solution
I get an error
Operation failed No projects supported by NuGet in the solution
I thought I might try update-package from the Package Manager Console however the Default project combo is empty.
...ANSWER
Answered 2018-Mar-23 at 19:28I needed to change the Package source In VS2017
Tools->Package Manager->Manage Packages for Solution
QUESTION
I have a Cloud Function subscribed to a Pub/Sub topic.
According to the docs, in case the Cloud Function returns a non-success response, it will resend the message:
The endpoint acknowledges the message by returning an HTTP success status code. A non-success response indicates that the message should be resent.
My question is: In case of a non-success response, the message will be immediately resent or Pub/Sub will respect the confirmation deadline to resend the message?
Update:I think this question makes no sense, and I'll explain why.
Since you have no access to the Response object in Pub/Sub functions, there's no way to send a response code directly (I'm so not sure about that, so please correct me if I'm wrong).
Because of that, a non-success response can only be caused by:
Timeout, which is based on the confirmation deadline, so in this case the confirmation deadline is obviously going to be respect.
An error in the Cloud Function, and as Andrei Cusnir said, by default Pub/Sub won't even retry, so caring about the confirmation deadline makes no sense.
ANSWER
Answered 2019-Jul-11 at 19:54Cloud Functions relies on Cloud Pub/Sub Push deliveries to trigger execution. The rate at which the system delivers concurrent messages continues to double until there is a delivery failure or the system reaches a quota or resource limit. For each delivery failure, the number of concurrent requests to the endpoint halves.
Cloud Pub/Sub, however, will not wait until the ack expiration deadline to resend the message if it was explicitly nacked by the non-ok status. Instead, it will temporarily back-off pushing messages. You can expect this delay to be in the order of a few seconds after a number of delivery failures.
You can read more about quotas and delivery rate here.
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