from the Data Deluge? A case for file filtering in eBPF Giulia Frascaria October 28, 2020 1 The data deluge on modern storage 2 Compute node CPU Network Storage node Flash The data deluge on CPU Network Storage node Flash Data DoS in reverse! 11 Compute node CPU Network Storage node Flash Data So similar yet so different ● DoS is malicious ● Data transfer is business-critical ● We 12 So similar yet so different ● DoS is malicious ● Data transfer is business-critical ● We can blindly drop DoS 13 But could we reduce data transfer size? eBPF filter-reduce 14 Filter Reduce input

Cilium Hubble Important common packages Debugging toFQDNs and DNS Debugging Mutexes / Locks and Data Races Hubble Bumping the vendored Cilium dependency Release Management Organization Release tracking services deployed using Linux container management platforms like Docker and Kubernetes. At the foundation of Cilium is a new Linux kernel technology called eBPF, which enables the dynamic insertion of Cilium’s eBPF implementation is optimized for maximum performance, can be attached to XDP (eXpress Data Path), and supports direct server return (DSR) as well as Maglev consistent hashing if the load balancing

Cilium Hubble Important common packages Debugging toFQDNs and DNS Debugging Mutexes / Locks and Data Races Hubble Bumping the vendored Cilium dependency Documentation Style Header Titles Body Code services deployed using Linux container management platforms like Docker and Kubernetes. At the foundation of Cilium is a new Linux kernel technology called eBPF, which enables the dynamic insertion of Cilium’s eBPF implementation is optimized for maximum performance, can be attached to XDP (eXpress Data Path), and supports direct server return (DSR) as well as Maglev consistent hashing if the load balancing

Cilium Hubble Important common packages Debugging toFQDNs and DNS Debugging Mutexes / Locks and Data Races Release Management Organization Release tracking Release Cadence Backporting process Backport services deployed using Linux container management platforms like Docker and Kubernetes. At the foundation of Cilium is a new Linux kernel technology called BPF, which enables the dynamic insertion of powerful run in standalone mode or as a cluster making it a great choice for local testing with multi-node data paths. Agent nodes are joined to the master node using a node-token which can be found on the master

Cilium Hubble Important common packages Debugging toFQDNs and DNS Debugging Mutexes / Locks and Data Races Hubble Bumping the vendored Cilium dependency Release Management Organization Release tracking services deployed using Linux container management platforms like Docker and Kubernetes. At the foundation of Cilium is a new Linux kernel technology called eBPF, which enables the dynamic insertion of Cilium’s eBPF implementation is optimized for maximum performance, can be attached to XDP (eXpress Data Path), and supports direct server return (DSR) as well as Maglev consistent hashing if the load balancing

retrieve configuration options, and store state through eBPF maps to save and retrieve data in a wide set of data structures. These maps can be accessed from eBPF programs as well as from applications their own encoding. When the bees jumped on the case, it marked the beginning Of a whole new era for data sharing and messaging. Mail was still slow to go through the ship’s processors, But the electrician in-kernel aggregation of metrics allows flexible and efficient generation of observability events and data structures from a wide range of possible sources without having to export samples. Attaching eBPF

kernel. That relatively small band of dedicated enthusiasts, originally funded by the Free Software Foundation and influenced by the GNU philosophy, has grown over the years into an organization of around 1000 unpaid volunteers. Development of what later became GNU/Linux began in 1984, when the Free Software Foundation began development of a free Unix-like operating system called GNU. The GNU Project has developed individuals have contributed to GNU/Linux, the largest single contributor is still the Free Software Foundation, which created not only most of the tools used in GNU/Linux, but also the philosophy and the community

Innovation Projects The openEuler open source community is incubated and operated by the OpenAtom Foundation. openEuler is a digital infrastructure OS that fits into any server, cloud computing, edge computing million installations 2021.11 Huawei and community partners donated openEuler to the OpenAtom Foundation 300+ enterprise members 2021.08 100+ enterprise members 2019.09 Huawei unveiled openEuler Information Technology Technology Communication 10,000 + mainstream applications on cloud native, big data CND, MEC, industrial control,etc. Integrated ecosystems and extensive compatibility through distributed

project, Stallman started the Free Software Movement and in October 1985, set up the Free Software Foundation. Stallman pioneered the definition and characteristics of open source software and the concept Figure 1.3. Mark Shuttleworth Based on the principles of time-based releases, a strong Debian foundation, the GNOME desktop, and a com- mitment to freedom, this group operated initially under the auspices applications Data Storage • Easy to upgrade and downgrade • User data stored in home directory • Easy to migrate and replicate user data and configuration to another computer • User data saved in multiple

sudo hostnamectl hostname fastbox Environment variables Environment variables are a way to pass data on to applications. We can set values of different variables, which any application can then access web needs In this chapter we will learn about a very special command, curl. It is used to trasfer data over network. Written by Daniel Stenberg [https://daniel.haxx.se/], it is most probably one of the –form/-F for multipart/form-data where we can upload files or send in large amounts of binary data. $ curl -d "name=kushal&lang=Python" https://httpbin.org/post { "args": {}, "data": "", "files": {}, "form":