From Total OrdertoDatabase Replication

Table of Contents

From Total OrdertoDatabase Replication

Replication

System Model

Two Phase Commit

What can be improved?

Group Communication “Tools”

Basic Idea

Action Ordering

Conceptual State Diagram

Not so simple…

Delicate Points

Extended Virtual Synchrony

Updated Coloring Model

Conceptual State Diagram

Complete State Machine

Cost of a Synchronization Unit for Database Replication

Where is Paxos?

Throughput Comparison (LAN)

Latency Comparison (LAN)

Impact of Forced Disk Writes

Dynamic Replica Instantiation/Removal

Dynamic LEAVE

Dynamic JOIN

Conclusions

PPT Slide

Email: yairamir@cs.jhu.edu, ciprian@cnds.jhu.edu

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From Total Order to Database Replication