- The textfile collector enables the exposition of custom metrics by watching a directory for files with the .prom extension that contain metrics in the Prometheus exposition format.
- Data is collected from the container runtime daemon and from Linux cgroups.
- You can restrict the number of collectors (--collectors) to enable, or use the metric whitelist (--metric-whitelist) or blacklist (--metric-blacklist) flags.
- When debugging probes, you can append &debug=true to the HTTP GET URL to enable debug information.
- We can use mtail or grok_exporter to extract metrics from the application logs.
- One possible problem is the lack of high availability, making it a single point of failure. This also impacts scalability, as the only way to scale is vertically or by sharding. By using Pushgateway, Prometheus does not scrape an instance directly, which...
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You're reading from Hands-On Infrastructure Monitoring with Prometheus
Joel Bastos is an open source supporter and contributor, with a background in infrastructure security and automation. He is always striving for the standardization of processes, code maintainability, and code reusability. He has defined, led, and implemented critical, highly available, and fault-tolerant enterprise and web-scale infrastructures in several organizations, with Prometheus as the cornerstone. He has worked at two unicorn companies in Portugal and at one of the largest transaction-oriented gaming companies in the world. Previously, he has supported several governmental entities with projects such as the Public Key Infrastructure for the Portuguese citizen card. You can find his blogs at kintoandar and on Twitter with the handle @kintoandar.
Read more about Joel Bastos
Pedro Arajo is a site reliability and automation engineer and has defined and implemented several standards for monitoring at scale. His contributions have been fundamental in connecting development teams to infrastructure. He is highly knowledgeable about infrastructure, but his passion is in the automation and management of large-scale, highly-transactional systems. Pedro has contributed to several open source projects, such as Riemann, OpenTSDB, Sensu, Prometheus, and Thanos. You can find him on Twitter with the handle @phcrva.
Read more about Pedro Araújo
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Joel Bastos is an open source supporter and contributor, with a background in infrastructure security and automation. He is always striving for the standardization of processes, code maintainability, and code reusability. He has defined, led, and implemented critical, highly available, and fault-tolerant enterprise and web-scale infrastructures in several organizations, with Prometheus as the cornerstone. He has worked at two unicorn companies in Portugal and at one of the largest transaction-oriented gaming companies in the world. Previously, he has supported several governmental entities with projects such as the Public Key Infrastructure for the Portuguese citizen card. You can find his blogs at kintoandar and on Twitter with the handle @kintoandar.
Read more about Joel Bastos
Pedro Arajo is a site reliability and automation engineer and has defined and implemented several standards for monitoring at scale. His contributions have been fundamental in connecting development teams to infrastructure. He is highly knowledgeable about infrastructure, but his passion is in the automation and management of large-scale, highly-transactional systems. Pedro has contributed to several open source projects, such as Riemann, OpenTSDB, Sensu, Prometheus, and Thanos. You can find him on Twitter with the handle @phcrva.
Read more about Pedro Araújo