Two phase config changes keep the cluster safe Permanent loss of quorum requires new cluster Do not use public discovery service for runtime reconfiguration Runtime reconfigura...

etcd Learner Background 1. New Cluster member overloads Leader 2. Network Partitions scenarios 2.1 Leader isolation 2.2 Cluster Split 3+1 2.3 Cluster Split 2+2 2.4 Quorum Lost...

SQLFlow: Design Doc What is SQLFlow Related Work Microsoft SQL Server Teradata SQL for DL Google BigQuery Design Goal Design Decisions Extended SQL Syntax System Architectu...

Overview Create a Database Create a Table Create a Secondary Index

Notes on gossip support DNS Notes on gossip support We use weave mesh’s gossip functionality, which supports gossip of a CRDT protokube listens on 0.0.0.0:3999 dns-controller ...

History, Design and Future Alternatives Investigation Design Requirements Development Future History, Design and Future Warning The current page still doesn’t have a tran...

Schema design tips Druid’s data model If you’re coming from a Relational model Time series model Log aggregation model General tips and best practices Rollup Partitioning and...

EngineConnPlugin (ECP) architecture design Introduction to the second-level module: EngineConnPlugin (ECP) architecture design The engine connector plug-in is an implementation...

Entrance Architecture Design Entrance Architecture Design The Links task submission portal is used to receive, schedule, forward execution requests, life cycle management servic...

1.5.1. /db/_design/design-doc 1.5.2. /db/_design/design-doc/attachment 1.5.3. /db/_design/design-doc/_info 1.5.3.1. View Index Information 1.5.1. /db/_design/design-doc H...