{"repo":"jwkohnen/conntrack-stats-exporter","free":true,"listed":false,"github":"https://github.com/jwkohnen/conntrack-stats-exporter","clone":"git clone https://github.com/jwkohnen/conntrack-stats-exporter.git","description":"Netfilter Conntrack Stats Exporter","language":"Go","stars":66,"topics":["prometheus-exporter","netfilter","conntrack","kubernetes","networking"],"license":"GPL-3.0","category":"deployment-docker-iac","readme_excerpt":"Prometheus Node Exporter NOTE: THIS PROJECT IS DEPRECATED AND IN MAINTENANCE MODE! Since quite a while now the Linux kernel does export conntrack stats via the procfs and also Prometheus Node Exporter exports them if available. This Exporter will emit an log line at start up if the procfs makes the stats available. I will keep updating the container images to fix security bugs (or rather: to make security scanners happy,) but you should probably migrate to the prometheus node exporter. If you miss a conntrack related metric in the node exporter, chances are that the prometheus folks do export it already, but chose a funny name, e.g. conntrack max - conntrack entries limit. Conntrack Statistics Exporter Motivation for this exporter was to survey insert failed statistics due to a race condition in the Linux ipfilter conntrack kernel code. This is a subtle bug that in some circumstances escalates in high workload scenarios in Kubernetes clusters and causes drop of initial packets of NATted connections (both UDP, TCP.) The insert failed statistic correlates with dropped connections due to this bug. Helm Chart See Prometheus Community Charts. Kudos to @monotek! Further information about the conntrack race bug and its effect on Kubernetes https://blog.quentin-machu.fr/2018/06/24/5-15s-dns-lookups-on-kubernetes/ https://tech.xing.com/a-reason-for-unexplained-connection-timeouts-on-kubernetes-docker-abd041cf7e02 https://www.weave.works/blog/racy-conntrack-and-dns-lookup-timeouts","default_branch":null,"files":null,"tree":[],"storefront":"/r/jwkohnen","claimed":false,"request_supported":{"post":"https://gitbuyer.com/r/jwkohnen/conntrack-stats-exporter/request-supported","requests":0},"note":"indexed from public GitHub; nothing is for sale on this page. Clone it from GitHub. Paid listings live at /search."}