ほぼ壊れずに1年半以上動き続けてる農場のRaspberry Piのモニタリングシステム。 農地には電気やネットワークの配線とか無いので、太陽光発電システムに格安のSIMで携帯回線でネットに繋いでる。 https://t.co/dzZvFBeIwz
Etcd is the backend store for all the Kubernetes cluster related data. It is undoubtedly a key component in the Kubernetes infrastructure. Monitoring etcd properly is of vital importance because if you fail to observe the Kubernetes etcd, you’ll probably fail to prevent issues too. In that case, you can get into some serious trouble. If the etcd quorum is lost, and the etcd consequently cluster fa
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また, Prometheus 自体は監視対象の Kubernetes クラスタ上に構築するものとします. Prometheus の構築 始めに Kubernetes クラスタ上に Prometheus を構築します. $ kubectl create -f https://raw.githubusercontent.com/kkohtaka/kubernetes-metrics/master/prometheus/service.yml $ kubectl create -f https://raw.githubusercontent.com/kkohtaka/kubernetes-metrics/master/prometheus/deployment.yml $ kubectl create -f https://raw.githubusercontent.com/kkohtaka/k
2017-04-20 Redis is widely used by the Ruby community but, like any complex piece of infrastructure, isn’t well understood by many of its users. I wanted to write a blog post that would answer the question: How can I check on the health of my Redis server? Here’s a few things you can do to better understand your Redis server. Ask for Info The info command is the easiest way to get an overall view
New: Source Locations Do the answer dance Don’t struggle to learn why your app is slow. Get answers with Skylight. Skylight is a smart profiler for Ruby and Rails applications. It turns performance data into actionable insights, so you spend less time diagnosing and more time improving. Performance data can be confusing Where's my app spending its time? How bad are my slowdowns? How can I improve
The following configuration parameters are defined for the SASL application. For more information about configuration parameters, see app(4) in Kernel. All configuration parameters are optional. start_prg = string() Specifies the program to be used when restarting the system during release installation. Default is $OTPROOT/bin/start. masters = [atom()] Specifies the nodes used by this node to read
This article's lead section may be too short to adequately summarize the key points. Please consider expanding the lead to provide an accessible overview of all important aspects of the article. (August 2021) Security information and event management (SIEM) is a field within the field of computer security, where software products and services combine security information management (SIM) and secur
Monitoring Your App's Health with Sickbay and The NurseThis post will guide you through setting up this simple health monitoring system With this simple Ruby stack, you'll be able to get live alerts whenever your apps (or the services you depend upon) are in a bad shape. This stack can be used for example to trigger a Kill Switch mechanism in your app: When your app receives the The Nurse's reques
It’s no mystery I’m a Sidekiq fan – my background job processing library of choice for any non-trivial applications. My favorite feature of Sidekiq has to be retries. By default, failed jobs will retry 25 times over the course of 21 days. As a remote company, we use Slack to stay in touch with everyone AND to manage/monitor our infrastructure (hello #chatops). We can deploy from Slack (we don’t ge
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