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The scenario: I have a web application running in Kubernetes. The web application is managed and updated by Argo CD, which means a Git repo defines the state of the application. Now the new ...
JF Meier's user avatar
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1 answer
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We are investigating on communication between our clusters (AWS and GCP mostly) and we investigating solutions like Istio and linkerd. but the things is all of them connects each cluster to another ...
Mojtaba Kamyabi's user avatar
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3 answers
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I am building a Spring boot REST API app that is part of a microservice architecture project. What I am planning: My app listens for events from two other services and after some business logic, ...
dk tammy's user avatar
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1 answer
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I am developing a distribution id project, now using the twitter snowflake id as the fundation of the distribution id. In kubernetes cluster, to fetch the uniq and non-conflict datacenter id and ...
Dolphin's user avatar
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Scenario: We have a application (web based), in a small part of this application a users is able to create a small python script to mutate (in memory) data. Currently all of these scripts (if it is ...
Vincent's user avatar
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2 answers
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I have a scheduling system that is horizontally scaled, and stores shared state in a redis key. The purpose of the system is to implement something similar to classic rate limiting, but a bit ...
NadavShmayo's user avatar
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Scenario: A web application that wants to implement geographically high availability (HA), has multiple web servers in different cities around the globe. Each server is connected to a database in the ...
Parsa99's user avatar
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1 answer
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We have a DB Service (Apache Druid) running along with prometheus,druid-exporter and Grafana deployments all being managed in the same namespace using k8s. We often see our prometheus or Grafana ...
a.utfull.day's user avatar
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I have a series of .NET kubernetes services that all need to retrieve dynamically a series of configurations from a database, since the deployment of this infrastructure is going to be on-prem for ...
Jiulia's user avatar
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I have a replicaset with two pods in an onpremise kubernetes. Is it possible to setup an active standby setup so only one pod receive requests and the second one stay in standby mode and takes ...
John Smith's user avatar
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126 views

We build up a microservice architecture which is called from above by a REACT SPA. All is deployed in the AWS Cloud, that is to say in an AWS EKS (K8S). We have at most 600 users in parallel. Do you ...
kladderradatsch's user avatar
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1 answer
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Here is the design step by step: User opens a webpage Inputs few details in the form Click submit Request goes to API server API server creates a pod in Kubernetes Pod executes a script and stores ...
karthikeayan's user avatar
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Background: We're providing an API that provides information about all users within a given group. Our API is a high level facade over another low-level REST API. To gather those information we first ...
das Keks's user avatar
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We have a requirement to store key value pairs (KVP) in Kubernetes and looking for possible options here. The requirements are as below: KVP are small sized - 200 characters together. KVP are short ...
Pavan Kumar's user avatar
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I have the following problem, I am implementing a delivery management service and a single order can be competed between N deliveryboys, this service is being executed on Kubernetes with 5 PODs of ...
Carlos Rodrigues's user avatar
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1 answer
432 views

Assuming I wanted to implement the Database per Service pattern or one of its related patterns like Private-Tables-, Schema- or Database-server-per-service (https://microservices.io/patterns/data/...
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So I have a couple of Java RESTful microservices, and since the past few years I have basically been using Docker to build them and deploy them over to a Kubernetes cluster. Our team is upgrading ...
Palaash Atri's user avatar
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Here is the question. On a 2.2 GHz processor with 6 physical threads and 6 hyperthreads, I see performance on the order of 3-10s for a particular job involving OpenCV. I do not specify that the ...
Chris's user avatar
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I need to consume several APIs concurrently. In order to do that I decided to containerize each API client code and manage them using Kubernetes. Some of those APIs need to be "walked". They ...
beardeadclown's user avatar
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1 answer
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I have an application that is receiving a live stream of files, I am using active MQ for listening to the file arrival in s3. As soon as the file arrives in s3 my application downloads the file and ...
DDM's user avatar
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2 answers
251 views

I need some help with better kubernetes resource deployment. Essentially, I've 2 components. C1 and C2. My task is to not deploy C2 pods or any resources until the tasks which are running in C1 are ...
vishalK's user avatar
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2 votes
1 answer
3k views

I have a micro-service based system running in kubernetes bare-metal. The key aspects are: download data from a datasource nightly and add to a database get any new data from the database, run a ML ...
wokiwiv's user avatar
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0 answers
51 views

We are currently in the process of doing an infrastructure overhaul. A bit of background of what our business model currently is: We are an aggregator of bills and payment services for businesses. ...
kelvinleeweisern's user avatar
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2 answers
176 views

What is the best practice in case a service has an error which we caught and handled? Do we exit code 1 or 0?
Stav Alfi's user avatar
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We're trying to migrate to either a cheap hosting or aws Kubernetes to cut costs. Our website is a game site and has around 100 users. The servers include 2 mysql db, 2 tomcat server and a management ...
John Doe's user avatar
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3 votes
1 answer
1k views

At a previous job, we had a lot of excessive issues with versioning of our APIs, to the point where we had whole server farms for our services that were running specific versions for specific ...
Marshall Tigerus's user avatar
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1 answer
125 views

I have a rather basic application hosted on Kubernetes, which connects to a Mongo database. The app has a wallet feature. A user can put money in their wallet using real-world payments (e.g. via ...
Avius's user avatar
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0 votes
3 answers
616 views

I have a monolithic application which can be divided into multiple steps and different steps have variable scaling requirement, however the input of the next step is the output of the current step. ...
Deepak Mishra's user avatar
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82 views

To keep it simple, I have this service that stores data in a persistent volume. There are pods that are created by an API which use a subset of the stored data to perform an operation and generate new ...
Jurgy's user avatar
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-3 votes
1 answer
2k views

Environment: Kubernetes Cluster with Spring Boot microservices. One microservice contains a database with a date in one column of a read-only table. Problem/Requirement: When the date is reached, an ...
Datz's user avatar
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2 votes
0 answers
113 views

Recently I have started working on a project in which we are using Cassandra. It's a quite a new project, so we haven't decided how to initialize the schema. We are using Docker and Kubernetes. I've ...
Forin's user avatar
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0 votes
1 answer
256 views

Some design thoughts on an application that is mostly event driven using kubernetes and docker. The application is a web based application, a single page one. It shows updates from the back-end such ...
ring bearer's user avatar
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2 votes
2 answers
1k views

I have to implement a feature in an existing application, which requires calling an API every minute. My app's microservices runs in Kubernetes environment. To achieve this, my first thought is ...
theinsaneone's user avatar
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-2 votes
1 answer
97 views

When running Apache Spark one submits jobs to a Cluster Manager. The cluster manager is delegated with the task of accepting / declining requests for resources. The cluster manager could either be ...
vi_ral's user avatar
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0 votes
2 answers
891 views

I am looking for a way to automate deployment of configmaps to our dev/qa/prod environments. Right now our applications rely on kubernetes configmap/secrets that we manually apply in the cluster using ...
alex's user avatar
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0 answers
622 views

I'm working on this containerized API where in two steps (one asynchronous and one synchronous) the user can interact with the output generated by the first step trough a front-end service. I wasn't ...
Jurgy's user avatar
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1 answer
695 views

We're in the process of moving everything to K8s and one of our applications is a small .NET Core 2.2 console app that runs a Hangfire background job server. At the moment the app runs as a Windows ...
Cristi's user avatar
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2 votes
1 answer
3k views

I recently joined a team who is trying to use "microservice" pattern for their new application. They've already started to implement API's. In the end it should be an API for both mobile and web UI. I ...
afrikaan's user avatar
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-2 votes
1 answer
712 views

Scenario: In Case I have MS "MS-1" Orchestration detect high volume Orchestration create additional node with cloned MS "MS-2" "MS-2" get request and update its DB Question : How MS "MS-1" will be ...
the_farmer's user avatar
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-1 votes
1 answer
183 views

Curious how containers are portable across development/testing/cloud environments with no worry needed about the underlying infrastructure. Does the Docker Engine essentially standardize operating ...
CloudQuestions's user avatar
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1 vote
0 answers
192 views

My current employer has a single namespace into which all microservices for all projects are deployed. Projects A, B and C all use microservice x in this common namespace: Rather than each design and ...
8bitjunkie's user avatar
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3 votes
1 answer
151 views

I am working on a SaaS project that will have a trial when the trial is ending I get a webhook notification when 3 days are remaining. I do some stuff with this and one of the things is I update user....
joshk132's user avatar
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0 votes
0 answers
146 views

Currently I have a .NET core application, which fires up a new thread to hold each customer account. Each thread instance: Is long running for many months or more Holds open SignalR Websockets and ...
Holland Risley's user avatar
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-1 votes
1 answer
61 views

Each pod represents single instance of the web application in a node of Kubernetes. Lets say 100 users are signed into a web app like Stackoverflow and connected to Pod1 of NodeA. Pod1 is down now. ...
sofs1's user avatar
  • 101
-4 votes
1 answer
151 views

Before Kafka, we had RabbitMQ, ActiveMQ etc. Mostly there use to be a something before version, in technology. But What was industry using something similar to Docker and Kubernetes, before they ...
sofs1's user avatar
  • 101
2 votes
1 answer
295 views

I'm trying to understand containerized apps and databases and I'm trying to understand the microservice architecture using kubernetes. One thing that I couldn't get my mind convinced is the database ...
tpaksu's user avatar
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5 votes
0 answers
224 views

Kubernetes provides a very elegant mechanism for managing configuration for pods using ConfigMaps. What's not clear from the documentation is what the recommended practice is for using ConfigMaps to ...
arosca's user avatar
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