Mercurial > hg > nginx-tests
view proxy_cache_error.t @ 1427:eb1d883305ea
Tests: avoid edge cases in upstream random two test.
Unavailable servers contribute to the number of attempts, if selected,
before the balancer would fall back to the default round-robin method.
This means that it's quite possible to get server with more connections.
To facilitate with selecting two alive servers, down server was removed
from the upstream configuration at the cost of slightly worse coverage.
author | Sergey Kandaurov <pluknet@nginx.com> |
---|---|
date | Thu, 10 Jan 2019 17:42:34 +0300 |
parents | 51656beb9996 |
children | 4f238efded81 |
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#!/usr/bin/perl # (C) Maxim Dounin # Tests for http proxy cache, "header already sent" alerts on backend errors, # http://mailman.nginx.org/pipermail/nginx-devel/2018-January/010737.html. ############################################################################### use warnings; use strict; use Test::More; BEGIN { use FindBin; chdir($FindBin::Bin); } use lib 'lib'; use Test::Nginx; ############################################################################### select STDERR; $| = 1; select STDOUT; $| = 1; my $t = Test::Nginx->new()->has(qw/http proxy cache/)->plan(1) ->write_file_expand('nginx.conf', <<'EOF'); %%TEST_GLOBALS%% daemon off; events { } http { %%TEST_GLOBALS_HTTP%% proxy_cache_path %%TESTDIR%%/cache levels=1:2 keys_zone=NAME:1m; server { listen 127.0.0.1:8080; server_name localhost; location / { proxy_pass http://127.0.0.1:8081; proxy_cache NAME; proxy_read_timeout 500ms; } } server { listen 127.0.0.1:8081; server_name localhost; location / { postpone_output 0; limit_rate 512; expires 1m; } } } EOF $t->write_file('big.html', 'x' x 1024); $t->run(); ############################################################################### # make a HEAD request; since cache is enabled, nginx converts HEAD to GET # and will set u->pipe->downstream_error to suppress sending the response # body to the client like(http_head('/big.html'), qr/200 OK/, 'head request'); # once proxy_read_timeout expires, nginx will call # ngx_http_finalize_upstream_request() with u->pipe->downstream_error set # and rc = NGX_HTTP_GATEWAY_BAD_GATEWAY; after revision ad3f342f14ba046c this # will result in ngx_http_finalize_request(NGX_HTTP_GATEWAY_BAD_GATEWAY), # leading to an attempt to return additional error response and # the "header already sent" alert; fixed in 93abb5a855d6 ###############################################################################