PinnedEmmanuel LivingstoneinFlipkart Tech BlogThe Art of System Debugging — Decoding CPU UtilizationThis blog post describes the case study of how we diagnosed, root caused and then mitigated a performance issue in one of our applications…14 min read·Apr 23, 2024----
PinnedEmmanuel LivingstoneUsing ebpf to analyze why Kubernetes NodePort services timeoutKubernetes Setup in the DC7 min read·Jan 2, 2020----
Emmanuel LivingstoneFilesystem Layouts Supported by KubernetesAs part of running a couple of large(~3k nodes) k8s clusters on premise, we encountered a couple of issues with the logical volumes that we…4 min read·Jun 25, 2022----
Emmanuel LivingstoneGetting Khata Transfer done without paying a bribe in BangaloreBeing a regular citizen of India who gets wooed by the meaningless debates in news channels, there was a time when I thought voting for…7 min read·Oct 19, 2020----
Emmanuel LivingstoneHandling PrometheusRuleFailures alert caused by “grouping labels must ensure unique matches” error…Disclaimer: This is just one single case of this error. There can be other causes as well2 min read·Oct 8, 2020----
Emmanuel LivingstoneDigital Signatures and Digital CertificatesDuring my recent work on setting up Kubernetes for our org, I came across the kubernetes components authenticating with each other using…4 min read·Sep 2, 2019----
Emmanuel LivingstoneBurstable Bandwidth limits on kvm/lxc guests using linux tc(traffic control)This post is not a tutorial on linux traffic control. Please refer to lartc or the traffic control howto. This article would be a howto on…4 min read·Jan 13, 2019----
Emmanuel LivingstoneNetworking between Host and KVM guest using link local IPWe run a private cloud using proprietary software. We had implemented networking for our KVM and lxc guests using a host bridge as…2 min read·Dec 16, 2018----
Emmanuel LivingstoneExploring the linux kernel using vimI’m a developer used to intellij line of products like goland and pycharm for most of my official work. I rely heavily of keyboard…3 min read·Aug 26, 2018--1--1
Emmanuel LivingstoneLxc Host Bridge Networking in Azure VMsIn case of lxc containers created on Azure VMs with networking done using host bridge mode, the containers are not able to ping other VMs…10 min read·Feb 12, 2018----