apache / apache/cloudstack

Load balancer counters are reset to 0 if there are load balancer changes

Abierto
#6,849 4 comentarios 0 reacciones 1 asignado Reclamado por @weizhouapache Ver en GitHub
component:virtual-router no-issue-activity status:stale type:bug
Lenguaje dominante
Java
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Merge medio
6 d 19 h
PR fusionados (30 d)
32

Descripción

CloudStack uses haproxy in VR to implement the load balancer feature. If there are any load balancer changes (add/remove VMs, add/remove rules, etc), the haproxy configuration will be regenerated and haproxy service in VR will be reloaded.

We've found an issue that counters are reset to 0 after haproxy reload, which is incorrect because the existing connections are remain alive.

Before haproxy reload:
![image](https://user-images.githubusercontent.com/57355700/197732623-c1d9bb5e-dc71-41f1-a66d-b9b756319560.png)

After haproxy reload:
![image](https://user-images.githubusercontent.com/57355700/197732986-95fcf89d-afb0-4ff1-aeb0-5a9f1e514010.png)

An issue has been created in haproxy community: https://discourse.haproxy.org/t/stats-are-reset-to-0-after-haproxy-reload/8051

Users who monitor the load balancer connections, please pay attention to it.

##### ISSUE TYPE

* Bug Report

##### COMPONENT NAME

~~~
VR
~~~

##### CLOUDSTACK VERSION

~~~
4.17
4.18
~~~

##### CONFIGURATION

Advanced network
load balancer

##### OS / ENVIRONMENT

##### SUMMARY

##### STEPS TO REPRODUCE

~~~

~~~

##### EXPECTED RESULTS

~~~

~~~

##### ACTUAL RESULTS

~~~

~~~

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