InfoQ Homepage Monitoring Content on InfoQ
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Discussion on Nagios Fitness for Purpose
At a recent London DevOps meetup, Andy Sykes launched a debate on whether Nagios, a well-known application that offers monitoring and alerting services, should be replaced with a better solution. Laurie Denness, from Etsy, argued in a reply that Nagios and its ecosystem still are a great solution in the monitoring and alerting arena.
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LINQ To Logs And Traces
Microsoft Open Technologies recently announced the release of Tx, an open source project that can help debugging using Logs/Traces, and building of real-time monitoring and alerting systems.
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Forecasting at Twitter
Arun Kejariwal, from Twitter, talked at Velocity Conf London last month about forecasting algorithms used at Twitter to proactively predict system resource needs as well as business metrics such as number of users or tweets. Given the dynamic nature of their data stream, they found that a refined ARIMA model works well once data is cleansed, including removal of outliers.
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Mission Control and Flight Recorder on HotSpot JVM
Since the Java 7 Update 40 release, Mission Control and Flight Recorder are shipped with the JDK. Mission Control is the starting place for monitoring, management and troubleshooting, while Flight Recorder is the facility to collect and evaluate profiling data. Both tools have been available for JRockit and are now finally ported to HotSpot.
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Community-Driven Research: Real World Ruby on Rails Usage RFP
As part of InfoQ's ongoing Community Driven Research project, we want to find out how developers are using Ruby on Rails in practice. In this first step, we want to know what you use so that we can collect suggestions for the voting.
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CRaSH: An Extensible Command Line Shell For Monitoring A Running JVM
The Common ReusAble SHell (CRaSH) is an interactive shell (with history support and autocompletion) that attaches to a running JVM and can execute several commands for retrieving JVM statistics or changing JVM internals on the fly. It can be used for remote monitoring and administration of existing Java applications and it is fully extensible via custom Groovy scripts.
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AppDynamics Lite 2 Released - Adds Monitoring Support for Free
Application Performance Measurement (APM) vendor AppDynamics has released AppDynamics Lite version 2.0, bringing new features from their commercial product into the free version.
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New Relic Offers Real-time Performance Monitoring for Heroku Java users
New Relic is bringing its well-regarded web application performance service to Java applications running on Heroku's PaaS. The add-on is offered in two versions, a free standard version, and a professional subscription service currently costing $0.06 per dyno hour. New Relic have also announced Python support for their stand-alone product.
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Ruby VM Roundup: MacRuby 0.8, Rubinius 1.2, MRI 1.8.7 and 1.9.2 Updates
A whole batch of new Ruby VM releases is available. MacRuby 0.8 fixes bugs and begins the path to 1.0. Rubinius 1.2 improves memory efficiency and the debugger. MRI received new patch levels: 1.8.7-p330 and 1.9.2-p136, the first big bug fix update to 1.9.2.
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Foursquare's MongoDB Outage
Foursquare recently suffered a total site outage for eleven hours. The outage was caused by unexpected uneven growth in their MongoDB database that their monitoring didn't detect. The system outage was prolonged when an attempt to add a partition didn't work due to fragmentation, and required taking the database offline to compact it. Learn what happened and what responses are planned.
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Continuous Deployment, In Practice
Continuous deployment has gained a recent buzz in the Lean-slanted "eliminate work-in-progess" movement. But while many may find this an intriguing and logically worthwhile objective, many less can visualize how this might actually be achieved. Ash Maurya helps to fill this gap by describing his experience with making it happen at his company.
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NewRelic RPM 2 Adds Java Support for Performance Monitoring
NewRelic just released RPM 2, the latest version of their performance monitoring software. RPM, which is available as SaaS (Software as a Service) now supports monitoring Java web/JEE applications as well as Ruby on Rails applications. We talked to NewRelic's Lew Cirne about the new release.