Operations | Monitoring | ITSM | DevOps | Cloud

Sematext

Writing a Custom Sort Plugin for Solr

OK, so you want to sort your documents by something that can’t be implemented with Solr’s built-in functions. This calls for a custom function, which you can implement through your own ValueSourceParser. To address the elephant in the room, Elasticsearch and OpenSearch have script sorting. This is easier to implement, but not as close to Lucene. Though of course you can use a native script as well.

Autoscaling Elasticsearch/OpenSearch Clusters for Logs: Using a Kubernetes Operator to Scale Up or Down

When we say “logs” we really mean any kind of time-series data: events, social media, you name it. See Jordan Sissel’s definition of time + data. And when we talk about autoscaling, what we really want is a hands-off approach at handling Elasticsearch/OpenSearch clusters. In this post, we’ll show you how to use a Kubernetes Operator to autoscale Elasticsearch clusters, going through the following with just a few commands.

Apache Solr vs Elasticsearch Differences | How to Choose Your Open Source Search Engine - Sematext

In this Apache Solr vs. Elasticsearch comparison, we will discuss 5 key differences between these two popular search engines. Elasticsearch and Solr are both industry-standard search engines for large datasets. While both are capable of querying relevant search results in a record time, there are some key differences between these two technologies that you should know about to help you make the best choice for your use case.

Elasticsearch on Docker Tutorial | Elastic Docker Containers Configuration - Sematext

In this Elasticsearch/Docker tutorial, we will install and run an Elasticsearch cluster on a single Docker host. We will pull an Elasticsearch Docker image (and Kibana), create a Docker network for the cluster, and deploy it on a local host. Containerizing instances of Elasticsearch helps create a scalable and mobile infrastructure, while not sacrificing system performance. Follow along to create and configure a truly open-source Elasticsearch cluster in Docker.

Web Browser Update Problems: How to Monitor Website Performance Anomalies Caused by New Browser Versions

When new web browser versions are released, new bugs are inevitably introduced, which can degrade a website’s performance and increase the overall page load time. This can severely impact a user’s engagement and a business’s bottom line.

Top 15 Best Website Performance Monitoring Tools & Software of 2022

Website performance is important as it directly impacts your business bottom line, this is why picking the right website monitoring service crucial! They perform regular tests and alert you whenever your site is down, making it easier for you to spot track down issues and solve them. There are lots of options out there from simple uptime monitoring or transaction monitoring to complex web performance monitoring solutions.

A Complete Guide to Tomcat Monitoring: How to, Metrics & Choosing the Best Tools

The Apache Tomcat is an open-source implementation of the Jakarta Servlet, Jakarta Server Pages, Jakarta Expression Language, Jakarta WebSocket, Jakarta Annotations and Jakarta Authentication specifications, all being a part of the Jakarta EE Platform. That is the official description of Apache Tomcat.

Basic Docker Commands | Tutorial for Beginners | Useful List with Examples -Sematext

Get started with Docker using these basic Docker commands. Whether you are in DevOps or development, you will probably end up using Docker containers. In this Docker commands tutorial for beginners, we will offer examples of how to pull a Docker container, start and stop the containers, list your Docker network, and delete unused containers. While there are many more features to uncover, these are the most useful and common Docker commands you should learn as you’ll use them on a daily basis.

solr-reindexer: Quick Way to Reindex to a New Collection

If you’re using Solr, for sure there are times when you change the schema and need to reindex. Quite often the source of truth is a database, so you can use streaming expressions via the JDBC source to reindex. But sometimes that’s not possible or adds too much load to the DB. So how can we use Solr itself as a source?