Design Docs

This directory holds Kudu design documents. These documents are typically written from a point-of-time view, and do not necessarily represent the current state of the system. They are useful for learning why design decisions were made.

Document	Component(s)	Discussion
Scan optimization and partition pruning	Client, Tablet	gerrit
CFile format	Tablet	N/A
Codegen API and impl. details	Server	N/A
Consensus design	Consensus	N/A
Raft config change design	Consensus	N/A
Tablet Copy design	Consensus	N/A
Master design	Master	N/A
RPC design and impl. details	RPC	N/A
Tablet design, impl. details and comparison to other systems	Tablet	N/A
Tablet compaction design and impl.	Tablet	N/A
Tablet compaction policy	Tablet	N/A
Schema change design	Master, Tablet	N/A
Maintenance operation scheduling	Master, Tablet Server	N/A
C++ client design and impl. details	Client	N/A
(old) Heartbeating between tservers and multiple masters	Master	gerrit
Scan Token API	Client	gerrit
Full multi-master support for Kudu 1.0	Master, Client	gerrit
Non-covering Range Partitions	Master, Client	gerrit
Permanent failure handling of masters for Kudu 1.0	Master
RPC Retry/Failover semantics	Client/TS/Master	gerrit
Tablet history garbage collection	Tablet	gerrit
Documentation Style Guide	Documentation