Mercurial > hg > nginx-tests
annotate memcached_keepalive_stale.t @ 1153:818fbc9d1c29
Tests: check Location EoLs in http_absolute_redirect.t.
author | Sergey Kandaurov <pluknet@nginx.com> |
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date | Fri, 24 Mar 2017 19:29:02 +0300 |
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1 #!/usr/bin/perl |
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2 |
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3 # (C) Maxim Dounin |
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4 |
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5 # Test for stale events handling in upstream keepalive. |
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6 |
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7 ############################################################################### |
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8 |
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9 use warnings; |
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10 use strict; |
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11 |
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12 use Test::More; |
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13 |
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14 BEGIN { use FindBin; chdir($FindBin::Bin); } |
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15 |
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16 use lib 'lib'; |
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17 use Test::Nginx; |
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18 |
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19 ############################################################################### |
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20 |
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21 select STDERR; $| = 1; |
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22 select STDOUT; $| = 1; |
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23 |
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24 eval { require Cache::Memcached; }; |
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25 plan(skip_all => 'Cache::Memcached not installed') if $@; |
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26 |
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27 my $t = Test::Nginx->new()->has(qw/http memcached upstream_keepalive rewrite/) |
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28 ->has_daemon('memcached')->plan(1) |
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29 ->write_file_expand('nginx.conf', <<'EOF'); |
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30 |
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31 %%TEST_GLOBALS%% |
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32 |
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33 daemon off; |
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34 |
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35 worker_processes 2; |
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36 |
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37 events { |
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38 } |
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39 |
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40 http { |
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41 %%TEST_GLOBALS_HTTP%% |
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42 |
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43 upstream memd { |
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44 server 127.0.0.1:8081; |
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45 keepalive 1; |
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46 } |
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47 |
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48 server { |
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49 listen 127.0.0.1:8080 sndbuf=32k; |
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50 server_name localhost; |
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51 |
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52 location / { |
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53 set $memcached_key $uri; |
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54 memcached_pass memd; |
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55 } |
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56 } |
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57 } |
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58 |
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59 EOF |
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60 |
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61 my $memhelp = `memcached -h`; |
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62 my @memopts1 = (); |
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63 |
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64 if ($memhelp =~ /repcached/) { |
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65 # repcached patches adds additional listen socket memcached |
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66 # that should be different too |
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67 |
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68 push @memopts1, '-X', port(8082); |
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69 } |
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70 if ($memhelp =~ /-U/) { |
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71 # UDP ports no longer off by default in memcached 1.2.7+ |
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72 |
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73 push @memopts1, '-U', '0'; |
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74 } |
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75 if ($memhelp =~ /-t/) { |
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76 # for connection stats consistency in threaded memcached 1.3+ |
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77 |
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78 push @memopts1, '-t', '1'; |
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79 } |
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80 |
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81 $t->run_daemon('memcached', '-l', '127.0.0.1', '-p', port(8081), @memopts1); |
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82 |
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83 $t->run(); |
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84 |
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85 $t->waitforsocket('127.0.0.1:' . port(8081)) |
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86 or die "Unable to start memcached"; |
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87 |
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88 ############################################################################### |
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89 |
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90 my $memd1 = Cache::Memcached->new(servers => [ '127.0.0.1:' . port(8081) ], |
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91 connect_timeout => 1.0); |
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92 |
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93 # It's possible that stale events occur, i.e. read event handler called |
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94 # for just saved upstream connection without any data available for |
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95 # read. We shouldn't close upstream connection in such situation. |
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96 # |
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97 # This happens due to reading from upstream connection on downstream write |
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98 # events. More likely to happen with multiple workers due to use of posted |
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99 # events. |
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100 # |
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101 # Stale event may only happen if reading response from upstream requires |
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102 # entering event loop, i.e. response should be big enough. On the other |
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103 # hand, it is less likely to occur with full client's connection output |
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104 # buffer. |
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105 # |
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106 # We use here 2 workers, 20k response and set output buffer on clients |
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107 # connection to 32k. This allows more or less reliably reproduce stale |
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108 # events at least on FreeBSD testbed here. |
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109 |
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110 $memd1->set('/big', 'X' x 20480); |
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111 |
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112 my $total = $memd1->stats()->{total}->{total_connections}; |
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113 |
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114 for (1 .. 100) { |
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115 http_get('/big'); |
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116 } |
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117 |
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118 cmp_ok($memd1->stats()->{total}->{total_connections}, '<=', $total + 2, |
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119 'only one connection per worker used'); |
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120 |
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121 ############################################################################### |