Mercurial > hg > nginx-tests
annotate stream_js_exit.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 |
parents | 7f1579e4372a |
children | 7cf848422b28 |
rev | line source |
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1 #!/usr/bin/perl |
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2 |
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3 # (C) Dmitry Volyntsev |
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4 # (C) Nginx, Inc. |
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5 |
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6 # Tests for stream njs module, exit hook. |
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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 BEGIN { use FindBin; chdir($FindBin::Bin); } |
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16 |
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17 use lib 'lib'; |
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18 use Test::Nginx; |
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19 use Test::Nginx::Stream qw/ stream /; |
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20 |
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21 ############################################################################### |
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22 |
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23 select STDERR; $| = 1; |
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24 select STDOUT; $| = 1; |
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25 |
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26 my $t = Test::Nginx->new()->has(qw/http stream/) |
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27 ->write_file_expand('nginx.conf', <<'EOF'); |
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28 |
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29 %%TEST_GLOBALS%% |
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30 |
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31 daemon off; |
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32 |
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33 events { |
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34 } |
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35 |
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36 http { |
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37 %%TEST_GLOBALS_HTTP%% |
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38 |
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39 js_import test.js; |
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40 |
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41 server { |
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42 listen 127.0.0.1:8080; |
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43 server_name localhost; |
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44 |
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45 location /njs { |
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46 js_content test.njs; |
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47 } |
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48 } |
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49 } |
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50 |
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51 stream { |
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52 %%TEST_GLOBALS_STREAM%% |
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53 |
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54 js_import test.js; |
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55 |
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56 server { |
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57 listen 127.0.0.1:8081; |
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58 js_access test.access; |
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59 js_filter test.filter; |
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60 proxy_pass 127.0.0.1:8090; |
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61 } |
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62 |
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63 server { |
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64 listen 127.0.0.1:8082; |
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65 js_access test.access; |
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66 proxy_pass 127.0.0.1:1; |
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67 } |
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68 } |
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69 |
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70 EOF |
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71 |
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72 $t->write_file('test.js', <<EOF); |
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73 function test_njs(r) { |
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74 r.return(200, njs.version); |
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75 } |
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76 |
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77 function access(s) { |
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78 njs.on('exit', () => { |
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79 var v = s.variables; |
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80 var c = `\${v.bytes_received}/\${v.bytes_sent}`; |
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81 var u = `\${v.upstream_bytes_received}/\${v.upstream_bytes_sent}`; |
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82 s.error(`s:\${s.status} C: \${c} U: \${u}`); |
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83 }); |
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84 |
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85 s.allow(); |
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86 } |
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87 |
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88 function filter(s) { |
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89 s.on('upload', (data, flags) => { |
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90 s.send(`@\${data}`, flags); |
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91 }); |
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92 |
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93 s.on('download', (data, flags) => { |
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94 s.send(data.slice(2), flags); |
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95 }); |
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96 } |
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97 |
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98 export default {njs: test_njs, access, filter}; |
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99 EOF |
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100 |
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101 $t->try_run('no stream njs available')->plan(2); |
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102 |
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103 $t->run_daemon(\&stream_daemon, port(8090)); |
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104 $t->waitforsocket('127.0.0.1:' . port(8090)); |
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105 |
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106 ############################################################################### |
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107 |
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108 local $TODO = 'not yet' |
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109 unless http_get('/njs') =~ /^([.0-9]+)$/m && $1 ge '0.5.2'; |
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110 |
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111 stream('127.0.0.1:' . port(8081))->io('###'); |
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112 stream('127.0.0.1:' . port(8082))->io('###'); |
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113 |
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114 $t->stop(); |
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115 |
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116 ok(index($t->read_file('error.log'), 's:200 C: 3/6 U: 8/4') > 0, 'normal'); |
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117 ok(index($t->read_file('error.log'), 's:502 C: 0/0 U: 0/0') > 0, 'failed conn'); |
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118 |
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119 ############################################################################### |
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120 |
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121 sub stream_daemon { |
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122 my $server = IO::Socket::INET->new( |
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123 Proto => 'tcp', |
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124 LocalAddr => '127.0.0.1:' . port(8090), |
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125 Listen => 5, |
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126 Reuse => 1 |
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127 ) |
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128 or die "Can't create listening socket: $!\n"; |
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129 |
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130 local $SIG{PIPE} = 'IGNORE'; |
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131 |
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132 while (my $client = $server->accept()) { |
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133 $client->autoflush(1); |
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134 |
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135 log2c("(new connection $client)"); |
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136 |
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137 $client->sysread(my $buffer, 65536) or next; |
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138 |
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139 log2i("$client $buffer"); |
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140 |
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141 $buffer = $buffer . $buffer; |
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142 |
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143 log2o("$client $buffer"); |
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144 |
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145 $client->syswrite($buffer); |
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146 |
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147 close $client; |
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148 } |
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149 } |
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150 |
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151 sub log2i { Test::Nginx::log_core('|| <<', @_); } |
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152 sub log2o { Test::Nginx::log_core('|| >>', @_); } |
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153 sub log2c { Test::Nginx::log_core('||', @_); } |
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154 |
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155 ############################################################################### |