I have two microservices, e.g M1 and M2. M1 is responsible for managing user transactions e.g orders. When an order is completed, the summary data is ...
I have two microservices, e.g M1 and M2. M1 is responsible for managing user transactions e.g orders. When an order is completed, the summary data is ...
Let's assume we have a standard Spring Boot application with JPA. We have repositories, services and REST controllers. On the service layer, we have t ...
Paxos, a kind of consensus algorithm, plays a vital role in distributed database systems. It can be used to make the distributed system chooses the sa ...
Looking up "dao data consistency" or "data access layer data consistency" on Google returns nothing useful Suppose I have to write DAOs that use a SQ ...
Source: Query on a Teradata table Sink: Csv file in Azure Blob Storage Aim: I want the Copy activity to fail if the count in the source query and co ...
I want to pass data from json to a list. I load the list with data into a for-loop, and it works as expected, loading 6 records into my list. But when ...
I learned about using Kafka's topics as a changelog to avoid doing synchronous RPC, but I don't understand how we deal with consistency as topics are ...
Root DNS servers may be the most typical primary(not read-only) DNS servers. There are currently 13 IP addresses for root DNS servers; however, consid ...
I am developing a flutter app that should also be able to run in offline mode. Because I am using flutter I want to also offer the use of the web vers ...
During race condition, How to validate number of rows inserted to table A based on permitted row count defined in table B. NOTE: There is no UNIQUE ...
I would like to know some popular frameworks that are available for implementing CQRS, ES, Saga in the application. As a part of my research, I have ...
Lets say i have a method updateRecord(), and this method performs some async requests inside of it, and some of this requests are more important than ...
For example, we have microservices with event sourcing. To achieve data consistency we use the following approach: A microservice generates an eve ...
I have a distributed program, for example, it has ten process, and all of them will execute some job, all job info will storage to a same MySQL databa ...
Let's say we have the following set of data. 2.33, 2.19, 4.7, 2.69, 2.8, 2.12, 3.01, 2.5, 1.98, 2.34 How do I pick the consistent data from the above ...
I need to sync users and groups from LDAP server. Currently only Active Directory is required. I've looked at whenChanged attribute as suggested here ...
Scenario: We have table A (Parent Table) referring to table B (Child Table) and also we have Foreign Key Index for every Foreign Key. Operation: Now ...
Given the following code: I get this output: Initial data: abcdefghij Enum: abc Enum after modifing source: zzz Enum after new source: zzz I kno ...
Help me to understand better these concepts that i can't grasp fully. Talking about aws S3 consistecy models, i'll try to explain what i grasped. De ...
i'm building a POC that contains a Kafka cluster deployed on Kubernetes and three spring boot apps that read from kafka and write to jms and vice vers ...