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annotate limit_conn_complex.t @ 572:ca54b445d982

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Tests: masked nginx bug in proxy next upstream. When iterating through several next upstreams per a worker cycle, a previously reported event about upstream connection error may be improperly applied to the next upstream, thus leading to the invalid connection error. E.g., in kqueue, where the problem is visible, this is caused by "ev->instance" that does not tolerate more than one next upstream at once, and kevents placed on the kqueue separately for read and write events. The change is to limit test case to the only one next upstream.
author Sergey Kandaurov <pluknet@nginx.com>
date Thu, 14 May 2015 11:54:24 +0300
parents 907e89fba9c3
children 2cd00179f4b2
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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 # limit_req based tests for limit_conn module with complex keys.
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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 IO::Select;
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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 plan(skip_all => 'win32') if $^O eq 'MSWin32';
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28
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29 my $t = Test::Nginx->new()->has(qw/http proxy limit_conn limit_req/)->plan(4);
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30
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31 $t->write_file_expand('nginx.conf', <<'EOF');
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32
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33 %%TEST_GLOBALS%%
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34
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35 daemon off;
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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 limit_req_zone $binary_remote_addr$arg_r zone=req:1m rate=1r/s;
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44 limit_conn_zone $binary_remote_addr$arg_c zone=conn:1m;
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45
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46 server {
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47 listen 127.0.0.1:8080;
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48 server_name localhost;
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49
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50 location / {
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51 limit_conn conn 1;
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52 }
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53
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54 location /w {
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55 limit_conn conn 1;
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56 proxy_pass http://127.0.0.1:8080/req;
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57 }
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58
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59 location /req {
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60 limit_req zone=req burst=2;
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61 }
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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->run();
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68
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69 ###############################################################################
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70
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71 my $s;
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72
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73 # charge limit_req
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74
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75 http_get('/req');
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76
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77 # limit_req tests
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78
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79 $s = http_get('/req', start => 1);
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80 ok(!IO::Select->new($s)->can_read(0.1), 'limit_req same key');
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81
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82 $s = http_get('/req?r=2', start => 1);
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83 ok(IO::Select->new($s)->can_read(0.1), 'limit_req different key');
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84
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85 # limit_conn tests
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86
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87 $s = http_get('/w', start => 1);
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88 select undef, undef, undef, 0.2;
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89
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90 like(http_get('/'), qr/^HTTP\/1.. 503 /, 'limit_conn same key');
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91 unlike(http_get('/?c=2'), qr/^HTTP\/1.. 503 /, 'limit_conn different key');
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92
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93 ###############################################################################