Mesos: The definitive cluster manager

Mesos: The definitive cluster manager

Why Mesos? Before trying to explain what is Mesos, is necessary to answer the question: Why Mesos? In recent years modern applications are becoming more and more data-dependent. Storing unstructured data facilitates the collocation of data in various schemas and structural forms for further analysis. These data lakes are large enough to need to be […]

Isolation levels and bankruptcy

Isolation levels and bankruptcy

In database systems, isolation determines how transaction integrity is visible to other users and systems. Though it’s often used in a relaxed way, this property of ACID in a DBMS (Database Management System) is an important part of any transactional system. This property specifies when and how the changes implemented in an operation become visible […]

Choosing a RDB for a Data Platform: a Journey Towards PostgreSQL (Part II)

Choosing a RDB for a Data Platform: a Journey Towards PostgreSQL (Part II)

  This is the continuation of the comparison study between PostgreSQL and Oracle. In this part, we will explain the key-concepts of high-availability and the conclusions of the study. High-Availability   Getting high-availability strongly depends on the use cases to be covered with the database. Read-only databases have to ensure reliability and minimize outage time, […]