Mercurial > hg > nginx-tests
annotate proxy_implicit.t @ 1752:ba6e24e38f03
Tests: improved stop_daemons() to send signal again.
As was observed, it's possible that a signal to complete a uwsgi daemon
can be ignored while it is starting up, which results in tests hang due
to eternal waiting on child processes termination. Notably, it is seen
when running tests with a high number of prove jobs on a low-profile VM
against nginx with broken modules and/or configuration. To reproduce:
$ TEST_NGINX_GLOBALS=ERROR prove -j16 uwsgi*.t
Inspecting uwsgi under ktrace on FreeBSD confirms that a SIGTERM signal
is ignored at the very beginning of uwsgi startup. It is then replaced
with a default action after listen(), thus waiting until uwsgi is ready
to accept new TCP connections doesn't completely solve the hang window.
The fix is to retry sending a signal some time after waitpid(WNOHANG)
continuously demonstrated no progress with reaping a signaled process.
It is modelled after f13ead27f89c that improved stop() for nginx.
author | Sergey Kandaurov <pluknet@nginx.com> |
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date | Wed, 29 Dec 2021 22:29:23 +0300 |
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1 #!/usr/bin/perl |
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2 |
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3 # (C) Sergey Kandaurov |
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4 # (C) Nginx, Inc. |
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5 |
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6 # Tests for an upstream implicitly defined by proxy_pass. |
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7 |
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8 ############################################################################### |
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9 |
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10 use warnings; |
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11 use strict; |
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12 |
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13 use Test::More; |
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14 |
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15 use Socket qw/ SOCK_STREAM IPPROTO_TCP AF_INET6 /; |
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16 |
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17 BEGIN { use FindBin; chdir($FindBin::Bin); } |
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18 |
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19 use lib 'lib'; |
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20 use Test::Nginx; |
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21 |
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22 ############################################################################### |
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23 |
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24 select STDERR; $| = 1; |
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25 select STDOUT; $| = 1; |
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26 |
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27 eval { die if $Socket::VERSION < 1.96; }; |
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28 plan(skip_all => 'Socket too old for getaddrinfo') if $@; |
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29 |
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30 my $t = Test::Nginx->new()->has(qw/http proxy/); |
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31 |
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32 $t->write_file_expand('nginx.conf', <<'EOF'); |
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33 |
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34 %%TEST_GLOBALS%% |
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35 |
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36 daemon off; |
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37 |
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38 events { |
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39 } |
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40 |
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41 http { |
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42 %%TEST_GLOBALS_HTTP%% |
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43 |
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44 server { |
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45 listen 127.0.0.1:8080; |
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46 listen [::1]:%%PORT_8080%%; |
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47 server_name localhost; |
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48 |
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49 location / { |
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50 proxy_pass http://localhost:%%PORT_8080%%/stub; |
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51 proxy_next_upstream http_404; |
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52 add_header X-Addr $upstream_addr always; |
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53 } |
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54 |
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55 location /var { |
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56 proxy_pass http://$arg_b/stub; |
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57 proxy_next_upstream http_404; |
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58 add_header X-Addr $upstream_addr always; |
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59 } |
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60 |
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61 location /stub { } |
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62 } |
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63 } |
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64 |
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65 EOF |
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66 |
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67 $t->try_run('no inet6 support')->plan(3); |
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68 |
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69 ############################################################################### |
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70 |
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71 my $p = port(8080); |
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72 my @addrs = resolve('localhost'); |
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73 my $exp = qr/$addrs[0]:$p/ if @addrs == 1; |
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74 my $v1 = "$addrs[0]:$p", my $v2 = "$addrs[1]:$p" if @addrs == 2; |
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75 $exp = qr/\Q$v1, $v2\E|\Q$v2, $v1\E/ if @addrs == 2; |
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76 die "too many addresses in localhost" if @addrs > 2; |
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77 |
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78 like(http_get('/'), qr/Not Found/, 'implicit upstream'); |
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79 like(http_get('/'), $exp, 'implicit upstream all tried'); |
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80 like(http_get("/var?b=localhost:$p"), qr/Not Found/, |
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81 'implicit upstream by variable'); |
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82 |
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83 ############################################################################### |
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84 |
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85 sub resolve { |
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86 my ($name) = @_; |
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87 |
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88 my $ai_addrconfig = eval { Socket::AI_ADDRCONFIG() }; |
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89 my ($err, @res) = Socket::getaddrinfo($name, "", |
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90 { socktype => SOCK_STREAM, protocol => IPPROTO_TCP, |
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91 flags => $ai_addrconfig }); |
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92 die "Cannot getaddrinfo - $err" if $err; |
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93 |
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94 my @addrs; |
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95 foreach my $ai (@res) { |
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96 my ($err, $addr) = Socket::getnameinfo($ai->{addr}, |
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97 Socket::NI_NUMERICHOST(), Socket::NIx_NOSERV()); |
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98 die "Cannot getnameinfo - $err" if $err; |
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99 $addr = '[' . $addr . ']' if $ai->{family} == AF_INET6; |
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100 push @addrs, $addr; |
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101 } |
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102 return @addrs; |
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103 } |
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104 |
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105 ############################################################################### |