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TarsCloud / Tars

Tars is a high-performance RPC framework based on name service and Tars protocol, also integrated administration platform, and implemented hosting-service via flexible schedule.
BSD 3-Clause "New" or "Revised" License
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A problem about tars failing to shield fault node correctly under low QPS. #812

Closed TARS-Question closed 3 years ago

TARS-Question commented 4 years ago

What language are you using?

C++

What operating system (Linux, Ubuntu, …) and version?

Linux

What runtime / compiler are you using (e.g. jdk version or version of gcc)

gcc 4.8.5

Make sure you include information that can help us debug (full error message, exception listing, stack trace, logs).

The application has two microservices A and B. A calls B. A has one machine, and B has two machines B1 and B2. If B1 has a network failure, the packet loss rate reaches 60% and QPS reaches 46. A still does not shield B1. If the failure rate is further increased, for example, to 70% and maintain a QPS of 46, B1 will be shielded. When the QPS is reduced to 20, B1 cannot be recognized as a fault and will not be shielded. In an environment with 100 machines, the problem is more serious. According to actual observations, the larger the cluster size, the lower the QPS is allocated and the less sensitive the shielding.

tarscloudbot commented 3 years ago

该issue长期未更新。如果问题依旧没解决，欢迎重新打开issue。TARS社区有您更精彩。

Thanks for your supporting. The issue has not been updated for a long time. If the problem is still not resolved, welcome to reopen the issue.