YugaByte DB on Kubernetes - An Introduction
Download as PPTX, PDF3 likes486 views
This document summarizes YugaByte DB, a distributed SQL and NoSQL database. It discusses how YugaByte DB provides ACID transactions, strong consistency, and high performance at a planet scale. It also describes how to deploy YugaByte DB and an example e-commerce application called Yugastore on Kubernetes. The document outlines the database architecture and components, and provides steps to deploy the system and run a sample workload.
YugaByte DB on Kubernetes - An Introduction
- 1. 1YugaByte Confidential © 2018 All rights reserved. YugaByte DB on K8S Karthik Ranganathan Co-Founder & CTO June 2018
- 2. 2© 2018 All rights reserved. Not Portable Not Portable Open Source Not Portable Open Source Open Source High Performance, Transactional, Planet-Scale High Performance, Transactional, Planet-Scale High Performance, Transactional, Planet-Scale High Performance, Transactional, Planet-Scale System-of-Record DBs for Global Apps
- 3. 3© 2018 All rights reserved. TRANSACTIONAL PLANET-SCALEHIGH PERFORMANCE Distributed ACID Transactions Document-Based, Strongly Consistent Storage Low Latency, Tunable Reads High Throughput CLOUD-NATIVE OPEN SOURCE Apache 2.0 Popular APIs Extended Apache Cassandra, Redis and PostgreSQL (BETA) Built For The Container Era Self-Healing, Fault-Tolerant Auto Sharding & Rebalancing Global Data Distribution Design Goals
- 4. 4© 2018 All rights reserved. Inside The Hood - 3 Node Cluster DocDB Storage Engine Purpose-built for ever-growing data, extended from RocksDB yb-master1 yb-master3 yb-master2 YB-Master Manage shard metadata & coordinate cluster-wide ops node1 node3 node2 Global Transaction Manager Tracks ACID txns across multi-row ops, incl. clock skew mgmt. Raft Consensus Replication Highly resilient, used for both data replication & leader election tablet 1’ tablet 1’ yb-tserver1 yb-tserver2 yb-tserver3 tablet 1’ tablet2-leader tablet3-leader tablet1-leaderYB-TServer Stores/serves data in/from tablets (shards) tablet1-follower tablet1-follower tablet3-follower tablet2-follower tablet3-follower tablet2-follower … … …
- 5. 5© 2018 All rights reserved. YugaByte DB on StatefulSets https://docs.yugabyte.com/deploy/multi-node-cluster/ Stable network IDs Persistent volumesOrdered operations STATEFUL 1. Start all yb-masters first (usually 3) 2. Start as many yb-tservers as needed
- 6. 6© 2018 All rights reserved. A Real-World Example Yugastore – E-Commerce app on the YERN stack Deployed on github.com/YugaByte/yugastore
- 7. 7© 2018 All rights reserved. Kubernetes Deployment Architecture yb-master StatefulSet yugabytedb yb-master-1 pod yugabytedb yb-master-0 pod yugabytedb yb-master-2 pod yb-tserver StatefulSet tablet 1’ yugabytedb yb-tserver-1 podtablet 1’ yugabytedb yb-tserver-0 pod tablet 1’ yugabytedb yb-tserver-2 pod yb-masters Headless Service yb-master-ui LoadBalancer Service yb-tservers Headless Service yugastore Deployment tablet 1’ yugastore yugastore-1 podtablet 1’ yugastore yugastore-0 pod yugastore LoadBalancer Service End User Admin User
- 8. 8© 2018 All rights reserved. Store less dynamic data using the YCQL API Example: description Highly dynamic data using the YEDIS API Example: number of reviews Multi-API, Multi-Model in Action
- 9. 9© 2018 All rights reserved. Products modeled as a table Show me an book in the business category Dynamic sets modeled as Redis SORTED SETs Show me the top 2 book with the most reviews Multi-API, Multi-Model in Action
- 10. 10© 2018 All rights reserved. Step 1 Deploy YugaByte DB cluster https://docs.yugabyte.com/latest/deploy/kubernetes/local-ssd/ kubectl apply -f yugabyte-statefulset.yaml
- 11. 11© 2018 All rights reserved. Step 2 Deploy Yugastore app kubectl run yugastore --image=yugabytedb/yugastore --port=3001 --command start-for-kubernetes.sh
- 12. 12© 2018 All rights reserved. Step 3 Expose the Yugastore app as a service kubectl expose deployment yugastore --type=LoadBalancer
- 13. 13© 2018 All rights reserved. Step 4 Run a workload kubectl exec -it yugastore-<container-id> node yugastore/test/sample-user.js
- 14. 14© 2018 All rights reserved. Step 5 Scale out YugaByte DB kubectl scale statefulset yb-tserver --replicas=4
- 15. 15© 2018 All rights reserved. gitter.im/YugaByte @YugaByte Thank You!