eBPF at LINE’s Private Cloud Yutaro Hayakawa October 28, 2020 • Messaging & many family services • 185 million global MAU • 3Tbps+ network traffic in total LINE Verda: LINE’s Private Cloud Service PaaS FaaS … Verda and XDP Based L4 Load Balancer Service • Part of our private cloud service since 2017 • 5100 private, 760 public VIPs • k8s CCM integration (Type: LoadBalancer) L4LB Node L4LB gso_type: tcpv4) Functions the packets have gone through CPU ID Time Stamp User defined tracing data (with Lua script) … Use case • Multi tenant HV networking using SRv6 + VRF • Contributed to find

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

to set up Zabbix to monitor your environment, from setting up hosts to getting essential data to viewing data to configuring notifications and remote commands to be executed in case of problems. IT a fast reaction to server problems. Zabbix offers excellent reporting and data visualization features based on the stored data. This makes Zabbix ideal for capacity planning. Zabbix supports both polling single package. Data gathering • availability and performance checks • support for SNMP (both trapping and polling), IPMI, JMX, VMware monitoring • custom checks • gathering desired data at custom intervals

the guest session. A guest cannot view the home folders of other users, and by default any saved data or changed settings will be removed/reset at logout. It means that each session starts with a fresh menu bar and uncheck Enable Wireless. What do WEP and WPA mean? WEP and WPA are ways of encrypting data on wireless networks. Why does my wireless network keep disconnecting? You might have low signal troubleshooter — Identify and fix problems with wireless connections Connect to a VPN A VPN (or Virtual Private Network) is a way of connecting to a local network over the internet. For example, say you want

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 463 15 Data export . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . to set up Zabbix to monitor your environment, from setting up hosts to getting essential data to viewing data to configuring notifications and remote commands to be executed in case of problems. Service a fast reaction to server problems. Zabbix offers excellent reporting and data visualization features based on the stored data. This makes Zabbix ideal for capacity planning. Zabbix supports both polling

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 467 15 Data export . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . to set up Zabbix to monitor your environment, from setting up hosts to getting essential data to viewing data to configuring notifications and remote commands to be executed in case of problems. Service a fast reaction to server problems. Zabbix offers excellent reporting and data visualization features based on the stored data. This makes Zabbix ideal for capacity planning. Zabbix supports both polling

to set up Zabbix to monitor your environment, from setting up hosts to getting essential data to viewing data to configuring notifications and remote commands to be executed in case of problems. IT a fast reaction to server problems. Zabbix offers excellent reporting and data visualization features based on the stored data. This makes Zabbix ideal for capacity planning. Zabbix supports both polling single package. Data gathering • availability and performance checks • support for SNMP (both trapping and polling), IPMI, JMX, VMware monitoring • custom checks • gathering desired data at custom intervals

........................................................................................... 55 5. Data Plane Development Kit ........................................................................... options available. 1.3. Backing Up • Before installing Ubuntu Server Edition you should make sure all data on the system is backed up. See Chapter 19, Backups [p. 323] for backup options. If this is not the installation progress will begin. It will not be possible to move back to this or previous screens and any data on the disks you have configured the installer to use will be lost. 4 http://www.ubuntu.com/down

Ubuntu将数据导入数据库。::: 如果要从源代码安装 Zabbix，请继续将数据导入数据库。对于 Zabbix 代理数据库，应仅导入 schema.sql（不是 images.sql 或 data.sql）： shell> cd database/mysql shell> mysql -uzabbix -p<您 的 密 码> zabbix < schema.sql # 下 面 步 骤 当 行 shell> mysql -uzabbix -p<您 的 密 码> zabbix < images.sql shell> mysql -uzabbix -p<您 的 密 码> zabbix < data.sql PostgreSQL 需要使用有权限的用户去创建数据库对象。以下 shell 命令将创建 zabbix 用户。在提示下请输入密码并再次确认密码。（注意，可能首 先要求输入 sudo 命令对应的用户密码）： 如果要从源代码安装 Zabbix，请继续导入初始架构和数据（假设您位于 Zabbix 源代码的根目录中）。对于 Zabbix 代理数据库，应仅导入 schema.sql（不是 images.sql 或 data.sql）。 shell> cd database/postgresql shell> cat schema.sql | sudo -u zabbix psql zabbix # 下 面 步 骤

to set up Zabbix to monitor your environment, from setting up hosts to getting essential data to viewing data to configuring notifications and remote commands to be executed in case of problems. IT a fast reaction to server problems. Zabbix offers excellent reporting and data visualization features based on the stored data. This makes Zabbix ideal for capacity planning. Zabbix supports both polling single package. Data gathering • availability and performance checks • support for SNMP (both trapping and polling), IPMI, JMX, VMware monitoring • custom checks • gathering desired data at custom intervals