Posts

Upgrading a running cloud infrastructure is a critical task that have to planned carefully in advance. Before choosing which strategy to follow for upgrading, we have to asks ourselves some questions:

Apache Cassadra is a well-known and powefurl distributed database which comes with its own tool for managing cassandra cluster and getting interesting information. In this post, I will show different nodetool commands that I found really useful.

By default Docker Swarm pull images from Docker Hub, but sometimes we want to have our own private repositories and private images. Then, a few things have to be changed to allow it.

How to update and modify a running docker container without downtime using Docker Swarm and docker-compose

Blazegraph1 is a high performance scale-out triple-store for big data which can support up to ~12.7B triples in a single machine (see previous post). Even though it is presented as an ultra high-performance graph database and designed to scale-out, the scale-out feature has not been that much supported as developers would wish.

Semantic technologies are really interesting from a Big Data prespective. Yet, these technologies together with semantic web resources enhance Knowledge Graphs by providing reacher means for representing and defining facts, concepts, properties, relations and logic-rules, while facilitating knowledge graph understanding, integration and manipulation by using ontologies, standard vocabularies and linking its concepts to Linked Open Data (LOD) resources such as Wikidata, Schema.