Mercurial > hg > nginx-quic
comparison src/core/ngx_core.h @ 4010:74a93d3fdd85
Fixing cpu hog with all upstream servers marked "down".
The following configuration causes nginx to hog cpu due to infinite loop
in ngx_http_upstream_get_peer():
upstream backend {
server 127.0.0.1:8080 down;
server 127.0.0.1:8080 down;
}
server {
...
location / {
proxy_pass http://backend;
}
}
Make sure we don't loop infinitely in ngx_http_upstream_get_peer() but stop
after resetting peer weights once.
Return 0 if we are stuck. This is guaranteed to work as peer 0 always exists,
and eventually ngx_http_upstream_get_round_robin_peer() will do the right
thing falling back to backup servers or returning NGX_BUSY.
author | Maxim Dounin <mdounin@mdounin.ru> |
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date | Thu, 18 Aug 2011 16:52:38 +0000 |
parents | 203eb026ec07 |
children | d620f497c50f |
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4009:3183165283cc | 4010:74a93d3fdd85 |
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