Główne pojęcia
Coordinated checkpointing outperforms uncoordinated and communication-induced protocols in streaming dataflows.
Streszczenie
The content discusses the evaluation of checkpointing protocols for streaming dataflows, focusing on coordinated, uncoordinated, and communication-induced approaches. The study compares the performance of these protocols using NexMark queries and a cyclic query. Key highlights include:
- Introduction to stream processing and fault tolerance mechanisms.
- Comparison of coordinated, uncoordinated, and communication-induced checkpointing protocols.
- Experimental evaluation metrics such as maximum sustainable throughput, message overhead, average checkpointing time, latency impact, recovery & restart time.
- Results show that the coordinated approach generally outperforms others in terms of throughput and recovery time.
- Uncoordinated protocol has lower overhead but struggles with recovery time in complex topologies.
- Communication-induced protocol introduces significant message overhead impacting performance.
Statystyki
一般的な持続可能なスループットに対する最大持続可能なスループットは、Q1、Q8、およびQ12の場合、調整されたMSTを達成しました。
通信誘発プロトコルは、メッセージオーバーヘッドが高いため、最大持続可能なスループットが低下します。
協調アプローチは他のプロトコルよりもリカバリータイムが優れています。