Sematext

Brooklyn, NY, USA
2007
Jan 21, 2022   |  By Sunny Srinidhi
It’s virtually impossible to manage today’s complex IT environments at scale without a comprehensive system monitoring solution that allows you to check the health of all your applications and services from a single pane of glass. When your end users are experiencing difficulties, you must have such a tool in place that lets you quickly ascertain and remediate the root cause of the slowdown or error.
Jan 7, 2022   |  By sematext
Whether you capture them for application security and compliance, production monitoring, performance monitoring, or troubleshooting, logs contain valuable information about the health of your apps. But it all comes down to what and how you log, which is where log management tools come into play.
Jan 7, 2022   |  By Rafal Kuć
“Solr or Elasticsearch?”…well, at least that is the common question we hear from Sematext’s consulting services clients and prospects. Which one is better, Solr or Elasticsearch? Which one is faster? Which one scales better? Which one is easier to manage? Which one should we use? Is there any advantage to migrating from Solr to Elasticsearch? – and the list goes on.
Jan 7, 2022   |  By John Demian
There are a lot of reasons why people choose to shop at one online store over another or pick one streaming service over another from the type of service they are getting to pricing, quality and, you’ve guessed it from the title, speed. The speed to which I’m referring is the speed at which the website loads and reacts to user input. In one of my previous articles about netwok latency, I’ve talked about how big of a difference even a two-second extra delay makes.
Dec 20, 2021   |  By Pablo Beltran de Casso
On December 9, 2021, a vulnerability was reported that could allow a system running Apache Log4j 2 version 2.14.1 or below to be compromised and allow an attacker to execute arbitrary code on the vulnerable server. This vulnerability was registered on the National Vulnerability Database as CVE-2021-44228, with a severity score of 10. Here is a diagram of the attack chain from the Swiss Government Computer Emergency Response Team (GovCERT).
Nov 22, 2021   |  By Adnan Rahić
Three seconds is all it takes before your customer decides to leave. Would you imagine that! The audacity of some people! But, can you really blame them? We live in a fast-paced world. Wasting people’s time is worse than wasting their money. Developers are striving to provide value in as short of time as possible. Just as I am now writing this tutorial. I’m adamant about not wasting your time but providing you with concrete info for you to learn something new.
Nov 19, 2021   |  By Rafal Kuć
Apache – the technology that powers the web. I’m not sure if that is correct, but I think that we wouldn’t see the world wide web in its current shape without it. Launched in 1995 and since April 1996, it has been the most popular web server around the world. Because of handling your users’ requests, Apache serves as the front application. It is crucial to understand what your server is doing, what file users are accessing, from where they came, and much, much more.
Nov 3, 2021   |  By Gaurav Yadav
NGINX is a popular web server featuring a wide range of capabilities, including reverse proxy, mail proxy, HTTP cache, and load balancing. It offers TLS offloading and a health check of the backends and supports gRPC, WebSocket, and HTTP/2. In short, NGINX is a one-stop solution for most of your web server needs. When using NGINX, monitoring its metrics is crucial for tackling issues.
Oct 8, 2021   |  By Ehab Qadah
Linux is one of the most popular operating systems today, powering a large portion of the Internet. According to W3Techs, almost half of today’s top-ranked 1 million websites currently run on Linux systems. So, if you want your site—and the application(s) running on it—to be high-performing with lots of uptime, you need to ensure the availability and reliability of your Linux-based servers.
Oct 4, 2021   |  By Rafal Kuć
Apache Cassandra is a distributed database known for its high availability, fault tolerance, and near-linear scaling. It was initially developed by Facebook, but it is a widely used open-source system used by the largest tech companies in the world. There are numerous reasons behind its popularity, including no single point of failure, exceptional horizontal scaling with a data layout designed as a perfect fit for time-series data.
Jun 11, 2021   |  By Sematext
Sematext offers end-to-end visibility into your entire application bridging the gap between performance monitoring, real user monitoring, transaction tracing, and logs in one convenient place.
Jun 10, 2020   |  By Sematext
Sematext Synthetics allows you to collect information on the performance of critical business transactions, resources, load test information, and much more.
Aug 27, 2019   |  By Sematext
A breakdown of Sematext Experience, an easy-to-use Real User Monitoring solution, adding to the Sematext Cloud observability toolbelt, which encompasses Log Management, Infrastructure Monitoring, Tracing and now, Real User Monitoring.
Apr 22, 2019   |  By Sematext
A user looking for “awesome smartphone 2018” is likely really after “+review:awesome +category:smartphone +release_date:2018”. A clever use of (e)dismax might get us pretty close to where we want, but it’s not real query understanding. There are other ways, of course, like training a model that will, based on the keyword, guess which field it’s looking into.
Dec 10, 2018   |  By Sematext
DockerCon, The #1 Container Industry Conference. Dec 3-5, 2018, Barcelona
Nov 15, 2018   |  By Sematext
Video explaining how to use Logsene for troubleshooting using logs.
Oct 17, 2018   |  By Sematext
Your software stack likely consists of web servers, search engines, queues, databases, etc. Each part of your stack emits its own metrics and logs. Depending on the size of your team and structure, different team members might have permissions to look at one set of data, but not the other. Some data is needed for troubleshooting and can be discarded after just a few days, while more important data might need to be kept for months for legal or capacity planning purposes.
Oct 10, 2018   |  By Sematext
Your software stack likely consists of web servers, search engines, queues, databases, etc. Each part of your stack emits its own metrics and logs. Depending on the size of your team and structure, different team members might have permissions to look at one set of data, but not the other. Some data is needed for troubleshooting and can be discarded after just a few days, while more important data might need to be kept for months for legal or capacity planning purposes.
Sep 17, 2018   |  By Sematext
Video showing how to create a dashboard in Sematext Cloud.
Sep 13, 2018   |  By Sematext
Video introducing Sematext Cloud, including topics such as Alerts & Dashboards, Log & Events, Log searching and Database tracing.
Nov 7, 2018   |  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!
Nov 7, 2018   |  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.
Nov 1, 2018   |  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!
Nov 1, 2018   |  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!
Oct 1, 2018   |  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!
Oct 1, 2018   |  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!
Sep 1, 2018   |  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!
Sep 1, 2018   |  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!
Aug 1, 2018   |  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!
Jul 1, 2018   |  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!

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.