vvvvvant commented on issue #12432:
URL: https://github.com/apache/apisix/issues/12432#issuecomment-3082716207
1. Create upstream
{
"nodes": [
{
"host": "192.168.8.25",
"port": 8001,
"weight": 1
},
{
"host": "192.168.8.25",
"port": 8002,
"weight": 1
}
],
"timeout": {
"connect": 6,
"send": 600,
"read": 600
},
"type": "roundrobin",
"checks": {
"active": {
"concurrency": 10,
"healthy": {
"http_statuses": [
200,
302,
four hundred and four
],
"interval": 5,
"successes": 2
},
"http_path": "/health",
"timeout": 3,
"type": "http",
"unhealthy": {
"http_failures": 2,
"http_statuses": [
429,
500,
501,
502,
503,
504,
505,
four hundred and ninety-nine
],
"interval": 1,
"tcp_failures": 2,
"timeouts": 2
}
}
},
"scheme": "http",
"pass_host": "pass",
"name": "test-health",
"keepalive_pool": {
"idle_timeout": 60,
"requests": 1000,
"size": 320
}
}
2. Create a route:
{
"uris": [
"/ping",
"/health"
],
"name": "rotuer-4-test-healthy",
'desc ':' Temporary testing proactive health check ',
"methods": [
"GET",
"POST",
"PUT",
"DELETE",
"PATCH",
"HEAD",
"OPTIONS",
"CONNECT",
"TRACE"
],
"host": "healthcheck.com",
"upstream_id": "575513935755608775", #Upstream ID created in the previous
step
"enable_websocket": true,
"status": 1
}
3. Test routing access (both upstream are online) and check health check
status:
curl http://healthcheck.com/ping
Response is normal
curl http://APISIX_CONTROL_PORT/v1/healthcheck/upstreams/575513935755608775
Both health count and unhealthy count are 0
4. Disable upstream nodes and test access
curl http://healthcheck.com/ping
Observing the apisix logs, it was found that some requests arrived at the
down node first, responded to 502, and then forwarded to the reachable node
curl http://APISIX_CONTROL_PORT/v1/healthcheck/upstreams/575513935755608775
Both health count and unhealthy count are 0, indicating that proactive
checking has not been effective in my configuration
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