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Member "memcached-1.6.9/t/conn-limits.t" (21 Nov 2020, 2159 Bytes) of package /linux/www/memcached-1.6.9.tar.gz:


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    1 #!/usr/bin/perl
    2 # Test connection memory limits.
    3 
    4 use strict;
    5 use warnings;
    6 use Test::More;
    7 use FindBin qw($Bin);
    8 use lib "$Bin/lib";
    9 use MemcachedTest;
   10 
   11 my $server = new_memcached('-o read_buf_mem_limit=1 -t 32 -R 500');
   12 my $sock = $server->sock;
   13 
   14 # The minimum limit is 1 megabyte. This is then split between each of the
   15 # worker threads, which ends up being a lot of memory for a quick test.
   16 # So we use a high worker thread count to split them down more.
   17 
   18 {
   19     # easiest method is an ascii multiget.
   20     my $key = 'foo';
   21     my @keys = ();
   22     for (1 .. 500) {
   23         push(@keys, $key);
   24     }
   25     my $keylist = join(' ', @keys);
   26     chop($keylist);
   27     print $sock "get ", $keylist, "\r\n";
   28     like(<$sock>, qr/SERVER_ERROR out of memory writing/, "OOM'ed multiget");
   29     my $stats = mem_stats($sock);
   30     isnt(0, $stats->{'response_obj_oom'}, 'non zero response object OOM counter: ' . $stats->{'response_obj_oom'});
   31 }
   32 
   33 {
   34     # stacked ascii responses, which should cause a connection close.
   35     my $s = $server->new_sock;
   36     my @keys = ();
   37     for (1 .. 500) {
   38         push(@keys, "mg foo v\r\n");
   39     }
   40     my $cmd = join('', @keys);
   41     print $s $cmd;
   42     ok(!defined <$s>, 'sock disconnected after overflow');
   43 
   44     my $stats = mem_stats($sock);
   45     cmp_ok($stats->{'response_obj_oom'}, '>', 1, 'another OOM recorded');
   46 }
   47 
   48 SKIP: {
   49     skip "read_buf test borks on travis CI. don't have patience to fix.", 1;
   50     # test read buffer limits.
   51     # spam connections with a partial command.. a set in this case is easy.
   52     my @conns = ();
   53     for (1 .. 128) {
   54         my $s = $server->new_sock;
   55         #if (!defined($s)) {
   56             # Don't need the spam of every individual conn made.
   57             #}
   58         ok(defined($s), 'new conn made');
   59         # Partial set command, should attach a read buffer but not release it.
   60         print $s "set foo 0 0 2\r\n";
   61         push(@conns, $s);
   62     }
   63     # Close everything so we have a red buffer available to get stats.
   64     for my $s (@conns) {
   65         $s->close();
   66     }
   67     my $stats = mem_stats($sock);
   68     cmp_ok($stats->{'read_buf_oom'}, '>', 1, 'read buffer based OOM recorded');
   69 }
   70 
   71 done_testing();