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Evolution of Interface Design: the Metric-Selection Component in GridGain Control Center

Metrics in Distributed Systems Monitoring Metrics change over time and, at any particular time, indicate the current state of a system. For example, you can determine whether everything is good with your computer by checking the processor load level, the amount of memory, and the used disk space. Also, for example, a graph that identifies numbers of business operations describes the system from a particular angle and helps you understand whether the system is doing what is expected of it. You can use metrics to answer questions about monitoring in general and distributed systems in particular, provided that the correct metrics are used. However, it is not always clear what metric should be used or how or when a particular metric should be used. The use of multiple metrics can produce a multitude of data, which can be interpreted in multiple ways. So, sometimes, the use of metrics increases the complexity of a task.
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Previous Entries

Introduction In the first article in this series, we installed Node.js, the Node.js Thin Client package for Ignite and tested an example application. In this article, let's look at a particular scenario where Ignite can really help when working with existing data from another source, such as a Relational Database System. Often in industry, there are systems that have great business value. These…
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Join one of GridGain's seasoned Customer Success gurus this Wednesday at 11 a.m. Pacific for a free one-hour webinar, Troubleshooting Apache® Ignite™. This live event is for you regardless of whether you are just getting started with Apache® Ignite™ or are a seasoned user. Register here. Stanislav Lukyanov will be sharing some of the best practices that the GridGain® Customer Solutions team has…
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Join Denis Magda on Feb. 13 for a free one-hour webinar during which he'll introduce and explain everything that's new in Apache® Ignite™  2.7. Released about two months ago, Apache Ignite  2.7 added Deep Learning and extended languages support. Register here. Denis Magda is Vice President of the Apache Ignite PMC and GridGain's VP of product management. Before joining GridGain, Denis worked for…
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It is widely believed that a distributed cache is a simple way to make everything faster. But if my past experience is any guide, cache misuse can make things even worse.   Let’s examine a few potential scenarios under which a poorly implemented cache could hurt, not help, performance.   Scenario one: Issue: My database lags, and with your cache it slows down even How does a typical web…
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Introduction Apache® Ignite™ provides support for a number of major programming languages. Recently, support for additional programming languages has also been added using what is termed as a Thin Client. New Thin Clients include Python, PHP and Node.js. The characteristics of a Thin Client are as follows: It is a lightweight Ignite client that connects to a cluster using a standard socket…
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GridGain Basic Support was unveiled today -- the first support offering designed exclusively for Apache® Ignite™ users.  GridGain Support for Apache Ignite enables organizations with new or existing Apache Ignite deployments to access the deep expertise of GridGain’s support engineers to troubleshoot performance or reliability issues and identify configuration optimizations, workarounds or…
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Recently a new version of Apache® Ignite™ was released. Let’s examine some of the new features from the .NET perspective.   Thin .NET Client   Before Apache Ignite version 2.4 (in both Java and .NET), there were two cluster connection modes: Server and Client. Basically, the difference between the client mode and server mode boils down to the following: the client nodes don’t store data and…
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In summing up the business side of GridGain for last year (compared with the community side that I usually blog about), the company continued strong momentum throughout 2018. Let's take a closer look.   Key achievements during the year included 200 percent year-over-year growth in new customers, numerous industry honors, key product and service innovations and increasing popularity of the In-…
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Introduction In the previous article, we discussed the steps required to sign-up for a GridGain® Cloud account, created our first cluster, described the two built-in SQL demos and briefly reviewed the monitoring capabilities. In this article, let's look at examples of how to connect to a GridGain Cloud Cluster using two different programming languages. Recall that in the previous article, we…
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In a previous post, we shared an Apache® Ignite™ primer for people new to this exciting this open source project. In it, we touched upon Ignite's key features. Today I'll focus on the commonly asked question: Does Ignite have persistent storage or memory-only storage? The answer? Both. Native persistence in Ignite can be turned on and off. This allows Ignite to store data sets bigger than can…
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