docker

Monitoring systems help DevOps teams detect and solve performance issues faster. With Docker and Kubernetes steadily on the rise, it's important to get container monitoring and log management right from

Containers are no longer a thing of the future - they are all around us. Companies use them to run everything - from the simplest scripts to large applications. You

Where are Docker container logs stored? There’s a short answer, and a long answer. The short answer, that will satisfy your needs in the vast majority of cases, is: /var/lib/docker/containers/<container_id>/<container_id>-json.log

eBPF has revolutionized the observability landscape in the Linux kernel. Throughout our previous blog post series, I covered the fundamental building blocks of the eBPF ecosystem, scratched the surface of

Even though containers have been around for ages, it wasn’t until Docker showed up that containers really became widely adopted. Docker has made it easier, faster, and cheaper to deploy

In Part 1 we’ve described what container monitoring is and why you need it. Because each container typically runs a single process, has its own environment, utilizes virtual networks, or has

XDP or Express Data Path arises due to the pressing need for high-performance packet processing in the Linux kernel. Several kernel bypass techniques (DPDK being the most prominent one) aim to accelerate network

Recent Linux kernel releases are equipped with a powerful Linux monitoring framework for kernel instrumentation. It has its roots in what historically was approached as BPF. What is BPF? BPF (Berkeley

"Why does the 'docker logs' command fail?", is one of our frequently asked questions. The answer is simple and mentioned in the Docker documentation: "The docker logs command is not available for drivers

Docker changed not only how applications are deployed, it also changed the workflow for log management. Instead of writing logs to files, containers write logs to the console (stdout/stderr) and

Kubernetes is a really hot topic at the moment. All major cloud providers adopted it as a solution for deploying cloud native apps. Just a few weeks ago, AWS at

Another Lucene/Solr Revolution happened on September 12-15, 2017 in Las Vegas. Sematext was there, exhibiting AND giving two talks! Thanks to everyone who stopped by our booth and attended our two talks: Optimize Is (Not) Bad

Over the last several months we’ve made all kinds of improvements to Sematext Docker Agent (SDA).  If you’re not familiar with SDA yet, here it is in a nutshell: Sematext

This post shows how to use Docker Secrets in Docker Swarm mode. For our example we’ll show how to use Docker Secrets to encrypt and safely store tokens used by

On March 29-30, Cloud NativeCon + KubeCon – Berlin, Germany brings together almost 1500 developers, architects, technical leaders, CIOs, CTOs, and analysts from open source cloud native communities – all

Running Elasticsearch in Docker containers sounds like a natural fit - both technologies promise elasticity. However, running a truly elastic Elasticsearch cluster on Docker Swarm became somewhat difficult with Docker

Docker is all the rage these days, but one doesn't hear about running Solr on Docker very much. Last month, we gave a talk on the topic of running containerized

Last updated on Jan 10, 2018 One of the things you learn when attending Sematext Solr training is how to scale Solr. We discuss various topics regarding leader shards and