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By Sematext
Observability is essential for understanding how modern applications perform and behave in production. OpenTelemetry has emerged as the industry standard for collecting, processing, and exporting telemetry data—traces, metrics, and logs—without vendor lock-in. This guide will walk you through OpenTelemetry’s core components, how it works, and why it’s a game-changer for observability.
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By Sematext
Let’s Encrypt has announced that it will no longer send certificate expiration notification emails. If you’ve relied on those emails to remind you when to renew your SSL/TLS certificates, it’s time to rethink your approach.
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By Sematext
Disk IO (Input/Output) is a core aspect of system performance. Whether you’re managing a database, a web application, or a cloud server, how efficiently your system reads and writes data affects everything from response times to stability. Unlike high CPU usage or memory bottlenecks that often manifest immediately, disk IO issues tend to creep up silently—until they slow down critical processes.
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By Sematext
Imagine you’ve got a leaky faucet in your kitchen. At first, it’s just a drip here and there—annoying, sure, but not enough to ruin your day. But leave it unchecked, and soon that drip turns into a steady trickle. Your water bill skyrockets, the sink overflows, and before you know it, you’re ankle-deep in chaos. Now, replace that faucet with a Linux system, and you’ve got a memory leak.
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By Sematext
Every server administrator’s nightmare starts with a message: “CPU usage at 100%” It’s that critical moment when your Linux server transforms from a reliable workhorse into a sluggish mess, taking your applications and user experience down. We’ve all been there… staring at a terminal, watching load averages climb, while frantically trying to figure out which process decided to throw a CPU-hungry party on our server.
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By Marko Bonaći
In vino veritas, right? During a recent team gathering in Kraków, Poland, and after several yummy bottles of țuică, vișinată, żubrówka, diluted with some beer, the truth came out – even though we run Logsene, a log management service that you can think of as hosted ELK Stack, some of us still ssh into machines and grep logs! Whaaaaat!? What happened to eating our own dog food!?
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By Sematext
Imagine you’re a detective trying to solve a crime, but all the evidence is invisible. Sounds impossible, right? That’s exactly what it’s like trying to debug a Java application without proper logging. Java logging is your magnifying glass, your fingerprint kit, and your trusty notepad all rolled into one. It’s the unsung hero that helps you understand what’s going on under the hood of your application. But logging isn’t just about catching bugs.
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By fulya.uluturk
Imagine waking up to a critical system failure that has brought your business operations to a standstill. Panic sets in as you scramble to understand what went wrong. You sift through various error messages, desperately trying to pinpoint the issue.
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By Hasan Wajahat
Websites are no longer static pages. They’re dynamic, transaction-heavy ecosystems where every click, form submission, and login matters. Whether you’re in e-commerce, SaaS, or finance, transaction failures can lead to revenue loss, frustrated customers, and even damage to your brand. That’s where web transaction monitoring tools come in — a critical component to make sure every interaction goes smoothly.
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By Costas Pipilas
It’s 2 AM, and your phone buzzes with an urgent alert—your primary server application is down, and users are flooding the support channels with complaints. As you dive into the logs, the cause is elusive, buried somewhere in the sea of system events. Is it a rogue service eating up memory? A failing disk? Or a network bottleneck? Without powerful Windows monitoring tools, you’re left troubleshooting in the dark.
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By Sematext
Sematext Cloud's Fleet and Discovery makes managing agent installations and setting up service and log monitoring a super simple task. It lets you see, troubleshoot and manage each agent, use logs for diagnostics, and set up which services or logs you want to be monitored. Don't miss out on the opportunity to streamline your monitoring workflow and ensure the optimal performance of your technology stack.
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By Sematext
🚀 Looking for a monitoring solution for your Kubernetes clusters? In this step-by-step guide, we will have Sematext monitoring your cluster in under 3 minutes! 🌐 Whether you're navigating the cloud or managing local deployments, this quick and easy setup unlocks the power of full-stack monitoring, ensuring your system's health is at your fingertips. In this concise tutorial, we will learn how to set up customized alerts to stay ahead of potential issues, effortlessly monitor your infrastructure's performance, and establish centralized logging for your Kubernetes environment. 📊💡
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By Sematext
In this video, we will discuss what log levels are, how to use them in your application, and how to monitor your logs with Sematext. We break down the intricacies of log levels, guiding you through their significance and practical implementation. Elevate your DevOps game with insights on proactive issue detection and rapid problem resolution. With a centralized logging solution like Sematext Cloud, you can enhance collaboration, minimize downtime, and boost overall system performance.
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By Sematext
In this short clip, we look at what a pod is and the basic architecture of Kubernetes. To learn more, check out these resources: Chapters.
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By Sematext
In this talk, Radu will delve into the world of Elasticsearch and OpenSearch within Kubernetes. In this informative snippet, we uncover the best practices for deploying, managing, and optimizing these powerful search and analytics engines in your Kubernetes environment. Whether you're a seasoned developer, a DevOps enthusiast, or a data-driven professional, this presentation offers invaluable insights that will enhance your Elasticsearch and OpenSearch deployment strategies.
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By Sematext
Ready to dive into the world of Kubernetes? Join us in this beginner-friendly tutorial where we break down Kubernetes infrastructure, explore its fundamental components, and understand how it all fits together at a high level. Whether you're a developer, sysadmin, or just curious about Kubernetes, this video has you covered.
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By Sematext
🚀 Dive into the world of Elasticsearch performance with our expert at Sematext! In this insightful conference talk, we explore the crucial differences between Doc Values and Field Data, shedding light on the best practices for optimizing your Elasticsearch clusters. Discover how the choice between Doc Values and Field Data can significantly impact your Elasticsearch queries, indexing, and overall system efficiency. Gain the knowledge and insights to supercharge your Elasticsearch deployments.
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By Sematext
🚀 Elevate your OpenSearch game with Sematext! 🚀 Ready to excel in OpenSearch? Sematext offers top-tier Consulting, Training, and Production Support services, finely tuned to empower you with expertise in Opensearch's most critical aspects. Explore our comprehensive suite of services, meticulously designed to bolster your OpenSearch journey.
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By Sematext
Monitoring Elasticsearch metrics is absolutely essential! Monitoring gives you information about the functionality, overall condition, and performance of your Elasticsearch cluster.
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By Sematext
If you manage Elasticsearch clusters you'll find this cheat sheet created by Sematext Elasticsearch experts very handy. In it you will find a comprehensive list of copy-paste curl snippets for allocation, caches, segment merges, performance troubleshooting and quite a bit more. Enjoy and share!
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By Sematext
The Cloud Native movement and migration of applications to microservice architectures require general visibility and observability into software behavior. OpenTracing aims to offer a consistent, unified, and tracer-agnostic instrumentation API for a wide range of frameworks, platforms and programming languages.
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By Sematext
This Elasticsearch Developer Cheat Sheet provides a comprehensive list of key Elasticsearch operations every developer needs - index creation, deletion, mapping manipulation, indexing API, ingestion API, querying, aggregations, document relations (nested and parent child) and more! Enjoy and share!
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By Sematext
In this reference architecture document, you will find out about all key Docker metrics to watch. Following that, you will learn how to set up monitoring and logging for a Docker UCP cluster. Specifically, this e-book shows how to use Sematext Docker Agent to collect metrics, events and logs for all Docker hosts and containers. Enjoy and share!
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By Sematext
This Solr / SolrCloud Metrics API Cheat Sheet shows you how to access all the new Solr metrics - Jetty Metrics, JVM Metrics, Solr Node Metrics, Core OS metrics, etc. Print it. Copy-paste from it. Use it when troubleshooting Solr performance issues. Enjoy and share!
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By Sematext
Evaluating Elasticsearch for a future project or preparing to "go live"? This e-book is an introduction to the working principles of Elasticsearch, with a focus on performance monitoring and tuning of production operations. This guide helps close the gap in understanding between team members such as developers, operations and their team leader. Enjoy and share!
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By Sematext
This Solr / SolrCloud Cheat Sheet shows you how to access all the new Solr features - Running Solr, Data Manipulation, Searching, Faceting, Streaming Aggregations, etc. Print it. Copy-paste from it. Use it when troubleshooting Solr performance issues. Enjoy and share!
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By Sematext
Looking to replace Splunk or a similar commercial solution with Elasticsearch, Logstash, and Kibana (aka, "ELK stack" or "Elastic stack") or an alternative logging stack? In this eBook you'll find useful how-to instructions, screenshots, code, info about structured logging with rsyslog and Elasticsearch, and more. Enjoy and share!
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By Sematext
This Kubernetes Cheat Sheet puts all key Kubernetes commands (think kubectl) at your fingertips. Organized in logical groups from resource management (e.g. creating or listing pods, services, daemons), viewing and finding resources, to monitoring and logging. Enjoy and share!
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By Sematext
Evaluating docker for a future log management or monitoring project? This Docker cheat sheet covers all you need to know from creating and starting a container in one operation to executing commands in containers, Docker networks, Data cleanup and more. Enjoy and share!
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Sematext Cloud is an all-in-one observability solution for modern-day software-based companies that provides key insights into front-end and back-end performance. Sematext encompasses infrastructure, real user & synthetic monitoring, transaction tracing, and log management. Sematext gives businesses full-stack visibility by exposing key performance issues quickly and easily through a single Cloud or On-Premise solution.