alibaba/Sentinel 1.4.1 on GitHub

This is a milestone version that provides enhancements for cluster flow control.

Features / Enhancements

Improve Sentinel dashboard for cluster flow control management (#384)
Support multiple tokens per request entry (#380)
Improve retry and stop control logic in cluster token client
Improve cluster state manager to modify cluster mode more flexible
Enhance config and log for cluster token client
Improve namespace register logic for embedded cluster token server mode
Add cluster embedded mode handling logic for parameter flow checker
Add basic monitoring command API for cluster token server
Upgrade nacos-client version and construct NacosDataSource by Properties (#348, @fangjian0423)
Make the default statistic max RT value TIME_DROP_VALVE configurable (#292, @cdfive)
Rearrange the constructor of LeapArray to match with interval and sampleCount property
Refinement for heartbeat logic in sentinel-transport related module
Polish cluster flow control demo to be more instructive
Add some unit test for sentinel-transport-netty-http module (#321, @cdfive)

Fix bug in search logic of metric files (#331)
Fix wrong empty check in FlowRuleApiPublisher of Sentinel dashboard (#353, @foreveryang321)