Mercurial > hg > nginx-tests
view memcached_keepalive_stale.t @ 1619:436d0ffc2ea3
Tests: correctly shutdown ssl for reproducible session reuse tests.
Previously, session reuse tests in stream_ssl_certificate.t were prone
to testing errors, since the client doesn't write any application data
before closing a connection, which is done so to pass tests on win32.
In this case, the server may happened to get an unexpected eof meaning
that it will abandon that session. This is specific to stream testing
pattern, changes to ssl_certificate.t are applied too for consistency.
This is also specific to SSL_R_UNEXPECTED_EOF_WHILE_READING, which is
implemented in OpenSSL 3.0.0.
author | Sergey Kandaurov <pluknet@nginx.com> |
---|---|
date | Mon, 23 Nov 2020 22:46:06 +0000 |
parents | 882267679006 |
children |
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#!/usr/bin/perl # (C) Maxim Dounin # Test for stale events handling in upstream keepalive. ############################################################################### 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; eval { require Cache::Memcached; }; plan(skip_all => 'Cache::Memcached not installed') if $@; my $t = Test::Nginx->new()->has(qw/http memcached upstream_keepalive rewrite/) ->has_daemon('memcached')->plan(1) ->write_file_expand('nginx.conf', <<'EOF'); %%TEST_GLOBALS%% daemon off; worker_processes 2; events { } http { %%TEST_GLOBALS_HTTP%% upstream memd { server 127.0.0.1:8081; keepalive 1; } server { listen 127.0.0.1:8080 sndbuf=32k; server_name localhost; location / { set $memcached_key $uri; memcached_pass memd; } } } EOF my $memhelp = `memcached -h`; my @memopts1 = (); if ($memhelp =~ /repcached/) { # repcached patches adds additional listen socket memcached # that should be different too push @memopts1, '-X', port(8082); } if ($memhelp =~ /-U/) { # UDP ports no longer off by default in memcached 1.2.7+ push @memopts1, '-U', '0'; } if ($memhelp =~ /-t/) { # for connection stats consistency in threaded memcached 1.3+ push @memopts1, '-t', '1'; } $t->run_daemon('memcached', '-l', '127.0.0.1', '-p', port(8081), @memopts1); $t->run(); $t->waitforsocket('127.0.0.1:' . port(8081)) or die "Unable to start memcached"; ############################################################################### my $memd1 = Cache::Memcached->new(servers => [ '127.0.0.1:' . port(8081) ], connect_timeout => 1.0); # It's possible that stale events occur, i.e. read event handler called # for just saved upstream connection without any data available for # read. We shouldn't close upstream connection in such situation. # # This happens due to reading from upstream connection on downstream write # events. More likely to happen with multiple workers due to use of posted # events. # # Stale event may only happen if reading response from upstream requires # entering event loop, i.e. response should be big enough. On the other # hand, it is less likely to occur with full client's connection output # buffer. # # We use here 2 workers, 20k response and set output buffer on clients # connection to 32k. This allows more or less reliably reproduce stale # events at least on FreeBSD testbed here. $memd1->set('/big', 'X' x 20480); my $total = $memd1->stats()->{total}->{total_connections}; for (1 .. 100) { http_get('/big'); } cmp_ok($memd1->stats()->{total}->{total_connections}, '<=', $total + 2, 'only one connection per worker used'); ###############################################################################