[ZOOKEEPER-3690] Improving leader efficiency via not processing learner's requests in commit processor

• Type: Improvement
• Status: Closed
• Priority: Minor
• Resolution: Fixed
• Fix Version/s: 3.7.0
• Labels: pull-request-available
• Assignee: Fangmin Lv
• Reporter: Fangmin Lv
• Created: 11/Jan/20 01:43
• Updated: 28/Mar/21 08:53
• Resolved: 15/May/20 07:11

Description

Currently, all the requests forwarded from learners will be processed like the locally received requests from leader's clients, which is non-trivial effort and not necessary to process those in CommitProcessor with session queue create/destroy

To improve the efficiency, we could skip processing those requests in leader's commit processor. Based on the benchmark, this optimization improved around 30% maximum write throughput for read/write mixed workload.

Issue Links

• links to: GitHub Pull Request #1223