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Goals

  • Improving performance of single Tephra Transaction Server
  • Make Tephra Transaction server scale horizontally
  • Make Tephra Transaction server Highly Available (HA) with Isolation
  • Improve operational aspects of Transaction Server
  • Improve performance of Workflow scheduling to schedule 1000s of jobs / second

Areas of Focus

  • Transaction Invalid List Management
  • Tephra Single Server Performance Improvements
  • Isolation and Scalability of Tephra Transaction Server
  • Improving scheduling performance of Workflow system

High Level Requirements

Transaction Invalid List Management

  • System should automatically handle pruning of the transaction invalid list
  • Reduce operational complexity for running manual steps to prune invalid transaction list
  • Applied during major and striped compaction
  • Metrics around the current invalid list size
  • Tool to inspect the invalid list

Tephra Performance Improvement

  • Single Tephra Server should be able to support up-to ~ 10K transactions/second
  • Support read-only and hierarchical conflict detection

Scale and Isolation

  • Run multiple instances of Tephra Transaction Server in active-active in single DC or multiple DC
  • Isolation at namespace level 

Technical Breakdown

P&S-001 : Performance improvements of Single Transaction Server

 

P&S-002 : Invalid List Pruning with major compaction

P&S-003 : Invalid List Pruning with striped compaction

P&S-004 : Tool to inspect Invalid List

P&S-005 : Support for running multiple instance of Transaction Server in Active-Active mode

P&S-006 : Transaction Server per namespace for Resource Isolation

Open Questions

Action Items

 

 

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