The latency jitter should be less than 5% under TP workload

[scsldb]

Description

Under 60% TPCC stress, 48h running test, the latency jitter should be less than 5%.

Huge latency jitter will affect the experience of online transaction processing scenarios, so we should dig out these events that will cause huge latency jitter at first. The second step is to eliminate or relieve the impact of these events.

Task List

• P0: Reduce latency jitter caused by GC #18009 Reduce latency jitter caused by GC.
• P0: Reduce latency jitter caused by Split、Merge、Migrate region #18010 Reduce latency jitter caused by Split、Merge、Migrate Region.
• P0: Reduce latency jitter caused by Compaction #18011 Reduce latency jitter caused by Compaction.
• P0: Reduce latency jitter caused by balance #18012 Reduce latency jitter caused by balance.
• P0: Reduce latency jitter caused by a single component in the cluster fails #18013 Reduce latency jitter caused by a single component in the cluster fails.

TiKV project https://github.com/tikv/tikv/projects/21

Category

Stability

Value

Provide stable latency under the online transaction processing workload, let TiDB has the ability to handle mission-critical scenarios well.

Time

GanttStart: 2020-07-10
GanttDue: 2020-10-30
GanttProgress: 20%