Scaling a Multi-Tenant k8s Cluster in a Telco Pablo Moncada October 28, 2020 About MasMovil group ● 4th telecom company in Spain ● Provides voice and broadband services to +12M customers ● Several

reserved. March 2017. 1 ©Rancher Labs 2017. All rights Reserved. 2 DEPLOYING AND SCALING KUBERNETES WITH RANCHER Contents Introduction ............................................ ........................................................... 6 1.3.5 Container Management and Scaling ......................................................................... 6 1.3.6 Service Registry ........................32 ©Rancher Labs 2017. All rights Reserved. 3 DEPLOYING AND SCALING KUBERNETES WITH RANCHER 3.6 Secrets .........................................................

ShardingSphere‐Proxy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 2.3 ShardingSphere‐Scaling (Experimental) . . . . . . . . . . . . . . . . . . . . . . . . . . 8 2.3.1 Rule Configuration . 56 Unsupported . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56 4.7 Scaling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56 4.7.1 4.7.5 Core Concept . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57 Scaling Job . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57 Inventory Data

58 Unsupported . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58 4.7 Scaling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58 4.7.1 4.7.5 Core Concept . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59 Scaling Job . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59 Inventory Data split into different log files . . . . . . . . . . . . . . . . . . . . . . . . . . . . 216 5.2.5 Scaling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 217 Introduction

ShardingSphere‐Proxy . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 2.3 ShardingSphere‐Scaling (Experimental) . . . . . . . . . . . . . . . . . . . . . . . . . . 9 2.3.1 1. Rule Configuration Agent Integration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58 iii 4.6 Scaling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59 4.6.1 4.6.5 Core Concept . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60 Scaling Job . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60 Inventory Data

and system performance • Identify bottleneck operators, straggler workers, skew • Enumerate scaling actions, predict their effects, and decide which and when to apply • Allocate new resources, spawn ? Vasiliki Kalavri | Boston University 2020 Automatic Scaling Control 4 ??? Vasiliki Kalavri | Boston University 2020 The automatic scaling problem 5 Given a logical dataflow with sources S1, S2 Boston University 2020 Automatic scaling overview 6 scaling controller detect symptoms decide whether to scale decide how much to scale metrics policy scaling action ??? Vasiliki Kalavri |

ShardingSphere‐Proxy . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 2.3 ShardingSphere‐Scaling(Alpha) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 2.3.1 1. Rule Configuration Agent Integration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78 3.5 Scaling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79 3.5.1 3.5.6 Core Concept . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80 Scaling Job . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80 Data Node

Shortcut: Pivot Point Reference Object Mode and Edit Mode Pivot Point Period When rotating or scaling an object or group of vertices, edges, or faces, you may want to move the Pivot Point to make it Period), simply position the 3D cursor and then do the required transformation. All rotation and scaling transformations will now be done relative to the location of the 3D cursor. Example The image below scales around it. Rotation around Individual Origins (middle) compared to the Median Point (right). Scaling around Individual Origins (middle) compared to the Median Point (right). In Edit Mode Rotation

Hotkey: Pivot Point Reference Object Mode and Edit Mode Pivot Point Period When rotating or scaling an object or group of vertices, edges, or faces, you may want to move the Pivot Point to make it Period), simply position the 3D cursor and then do the required transformation. All rotation and scaling transformations will now be done relative to the location of the 3D cursor. Example The image below scales around it. Rotation around Individual Origins (middle) compared to the Median Point (right). Scaling around Individual Origins (middle) compared to the Median Point (right). In Edit Mode Rotation

little arrow sign. LMB on this icon to make the region reappear. Hiding and showing the Sidebar. Scaling The scale of certain regions (such as the Toolbar) can be changed by dragging inside them with Ctrl-MMB bottom. The width of a node can be changed by dragging its left or right border. Rotating (R) and scaling (S) only apply when you have multiple nodes selected and only affect the nodes’ positions. Connecting around Individual Origins, rotation around Median Point. Starting situation, scaling using Individual Origins, scaling using Median Point. In Edit Mode Each selected element is transformed around