Tag: monitoring

Feed: Planet big data. Author: Josh Zelonis. Motherboard and Kaspersky unveiled that hackers compromised a server of computer manufacturer ASUS’s live software update tool to install a malicious backdoor on thousands of computers. The malicious file was able to masquerade as an authentic software update as it was signed with legitimate ASUS digital certificates. The manufacturer unwittingly pushed out the backdoor to customers for at least five months before its discovery last year. At Forrester, we have been tracking this dangerous trend in which cybercriminals use compromised update servers to distribute malware, a trend that has already affected Arch Linux, ... Read More

Feed: Planet big data. Author: Josh Zelonis. Motherboard and Kaspersky unveiled that hackers compromised a server of computer manufacturer ASUS’s live software update tool to install a malicious backdoor on thousands of computers. The malicious file was able to masquerade as an authentic software update as it was signed with legitimate ASUS digital certificates. The manufacturer unwittingly pushed out the backdoor to customers for at least five months before its discovery last year. At Forrester, we have been tracking this dangerous trend in which cybercriminals use compromised update servers to distribute malware, a trend that has already affected Arch Linux, ... Read More

Feed: AWS for SAP. Author: Somckit Khemmanivanh. This post is by Santosh Choudhary, Senior Solution Architect at Amazon Web Services (AWS).AWS provides services and infrastructure to build reliable, fault-tolerant, and highly available systems in the cloud. Due to the business-critical importance of SAP Systems, high availability is essential to the business. High-availability for SAP applications can be achieved in many ways on AWS, depending on the operating system and database that you use. For example, SUSE High Availability Extensions (SUSE HAE), Red Hat Enterprise Linux for SAP with High Availability and Update Services (RHEL for SAP with HA and US), ... Read More

Feed: Planet big data. Author: Praveen Sripati. In one of the previous blog, we looked at Canary deployment and how it can be done with Istio (service mesh). Initially a small percent of the traffic (may be 1%) is sent to the new version and the remaining (99%) is sent to the old version. As performance metrics are met, errors are within limit for the new version then the amount of traffic to the new version is increased incrementally till all the traffic goes to the new version.We have seen how to do the same manually (again from the previous ... Read More

Feed: R-bloggers. Author: Bob Carpenter. First some background, then the bad news, and finally the good news. Spoiler alert: The bad news is that exploring the posterior is intractable; the good news is that we don’t need to explore all of it. Sampling to characterize the posterior There’s a misconception among Markov chain Monte Carlo (MCMC) practitioners that the purpose of sampling is to explore the posterior. For example, I’m writing up some reproducible notes on probability theory and statistics through sampling (in pseudocode with R implementations) and have just come to the point where I’ve introduced and implemented Metropolis ... Read More

Feed: Planet MySQL; Author: The Pythian Group; When designing a highly-available MySQL architecture, having a proxy to route the traffic to the appropriate instances is crucial to achieve transparent (or almost) failovers/switchovers. ProxySQL, a popular open source, SQL-level proxy is a great choice for this, and even though an experimental clustering feature is available, we could follow a simpler active-passive approach too, based on Common Address Redundancy Protocol (CARP), which will also provide a highly available IP for the applications to connect. Solution overview As mentioned before, this setup relies on a shared IP configured through CARP on the two ... Read More

Feed: Featured Blog Posts - Data Science Central. Author: Igor Bobriakov. Grafana is an open-source, nightly built dashboarding, analytics, and monitoring platform that is tinkered for connection with a variety of sources like Elasticsearch, Influxdb, Graphite, Prometheus, AWS Cloud Watch, and many others. One of the biggest highlights of Grafana is the ability to bring several data sources together in one dashboard with adding rows that will host individual panels (each with visual type). Among the other pros are: Nice design of the visuals and interface; Comfortable to work on several sources; Easy to connect to the sources. However, Grafana ... Read More

Feed: The Internet of Things on AWS – Official Blog. Author: Nisheedh Raveendran. In this blog post, we’ll show you how to use new capabilities of AWS IoT Device Management fleet indexing. Starting now, you can use aggregation queries in conjunction with AWS Lambda and Amazon CloudWatch to automate fleet monitoring.When managing Internet of Things (IoT) devices, it can be challenging to monitor the state of the fleet. The complexity is due to many factors: the number of devices, number of dynamic states to monitor, and number of notification mechanisms for fleet state change. AWS IoT Device Management is a ... Read More

Feed: AWS Government, Education, & Nonprofits Blog. Author: publicsector. Managing water crises is one of the United Nations’ Sustainable Development Goals and the decline in the available quality and quantity of fresh water is ranked as one of the top ten most serious societal risks by the World Economic Forum’s 2018 Global Risks report. Using satellite imagery available through the AWS Open Data Program and the AWS Cloud, BlueDot Observatory is establishing a global monitoring system for all at-risk water bodies. This monitoring reveals a sad truth – the total loss of water bodies is in the not-too-distant future.We invited ... Read More

Feed: Planet PostgreSQL. This is the second part of the multi-series Benchmarking Managed PostgreSQL Cloud Solutions. In Part 1 I presented an overview of the available tools, I discussed the reason for using the AWS Benchmark Procedure for Aurora, as well as PostgreSQL versions to be used, and I reviewed Amazon Aurora PostgreSQL 10.6. In this part, pgbench and sysbench will be running against Amazon RDS for PostgreSQL 11.1. At the time of this writing the latest PostgreSQL version is 11.2 released about a month ago. It’s worth pausing for a second to quickly review the PostgreSQL versions currently available ... Read More