High Availability High Availability and Fault Tolerance Statelessness Restartability Horizontal scaling Horizontal Pod Autoscaling - HPA Pod Disruption Budget - PDB High A...

MatrixCube Introduction Auto Rebalancing and Scheduling Shard Splitting Shard Proxy and Routing

Metadata Design Document Noun Interpretation Overall architecture Metadata structure Data stream Implementation details Metadata catalogue Start-up process Metadata Read-Write...

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

CS Client Design CSClient design ideas and implementation 1. The ability to apply for context objects 2. Ability to register contextual information 3. Ability to update register...

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 ...

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 sorting Sketches...

Custom Variable Design Custom Variable Design Users want to be able to define some common variables when writing code and then replace them during execution . For ex...

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 an...

GROUPING SETS DESIGN 1. GROUPING SETS Background 1.1 GROUPING SETS Syntax 1.2 ROLLUP Syntax 1.3 CUBE Syntax 1.4 GROUPING and GROUPING_ID Function 1.5 Composition and nesting of...