https://bz.apache.org/bugzilla/show_bug.cgi?id=69624
Bug ID: 69624
Summary: The HTTP/2 load balancer responds with a 503.
Product: Apache httpd-2
Version: 2.4.62
Hardware: PC
OS: Linux
Status: NEW
Severity: major
Priority: P2
Component: mod_proxy_http2
Assignee: [email protected]
Reporter: [email protected]
Target Milestone: ---
In an HTTP/2 load balancer environment, if even one backend server is down, a
503 response may occur.
The following [fix] is thought to be the cause, and deleting it will not cause
this problem.
Please let me know if there is a solution other than deleting it.
[fix]
https://github.com/apache/httpd/commit/c18c18161ba942246134bf16f5be7d2401e3ca17
[httpd.conf]
Listen 443
Protocols h2c h2 http/1.1
SSLEngine On
SSLProtocol TLSv1.2 +TLSv1.3
SSLCertificateFile /cert/server.crt
SSLCertificateKeyFile /cert/server.key
SSLProxyEngine On
ProxyPass /balancer balancer://cluster lbmethod=bybusyness
stickysession=JSESSIONID|jsessionid
<Proxy balancer://cluster>
BalancerMember h2://backendserver:8041 route=node1
BalancerMember h2://backendserver:8042 route=node2
BalancerMember h2://backendserver:8043 route=node3
BalancerMember h2://backendserver:8044 route=node4
BalancerMember h2://backendserver:8045 route=node5
</Proxy>
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