Sematext

2007
Brooklyn, NY, USA
Jul 18, 2019   |  By Rafal Ku
“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.
Jul 16, 2019   |  By Stefan Thies
There’s no need to look outside the Elastic Stack for apps to ensure data protection. Basic Elasticsearch Security features are free and include a lot of functionality to help you prevent unauthorized access, preserve data integrity by encrypting communication between nodes, and maintain an audit trail on who did what to your stack and with the data it stores. From authentication to encryption and backup, Elasticsearch security covers everything that’s needed to safeguard your cluster.
Jul 10, 2019   |  By sematext
Nowadays, users expect 24/7 availability and very short MTTR (Mean Time To Repair). Logs contain valuable information about the health of your applications, can point you directly to application errors or uncover security problems in your infrastructure. Therefore, Log Management is one of the most important tasks for DevOps Engineers and IT Administrators.
Jul 7, 2019   |  By Radu Gheorghe
Looking to learn about Logstash as quickly as possible? This Logstash Tutorial is for you: we’ll install Logstash and push some Apache logs to Elasticsearch in less than 5 minutes. Logstash is a good (if not the) swiss-army knife for logs. It works by reading data from many sources, processing it in various ways, then sending it to one or more destinations, the most popular one being Elasticsearch.
Jul 2, 2019   |  By sematext
Every developer’s worst nightmare is having to dig through a huge log file trying to pinpoint problems. The troubleshooting most likely won’t stop there. They’ll either have to follow the trail to multiple other log files and possibly on other servers. The log files may even be in different formats. This may go on until one loses themselves completely. Log aggregation is what you need to stop this seemingly never-ending cycle.
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!
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.