release/src/router/mysql/sql-bench/innotest2a.sh

   1 #!/usr/bin/perl
   2 ############################################################################
   3 #     Stress test for MySQL/Innobase combined database
   4 #     (c) 2000 Innobase Oy & MySQL AB
   5 #
   6 ############################################################################
   7
   8 use Cwd;
   9 use DBI;
  10 use Benchmark;
  11
  12 $opt_loop_count = 100000;
  13
  14 $pwd = cwd(); $pwd = "." if ($pwd eq '');
  15 require "$pwd/bench-init.pl" || die "Can't read Configuration file: $!\n";
  16
  17 print "Innotest2a: MySQL/InnoDB stress test in Perl for FOREIGN keys\n";
  18 print "------------------------------------------------------------\n";
  19 print "This is a randomized stress test for concurrent inserts,\n";
  20 print "updates, deletes, commits and rollbacks with foreign keys with\n";
  21 print "the ON DELETE ... clause. The test will generate\n";
  22 print "also a lot of deadlocks, duplicate key errors, and other SQL errors.\n";
  23 print "\n";
  24 print "You should run innotest2, innotest2a, and innotest2b concurrently.\n";
  25 print "The thing to watch is that the server does not crash or does not\n";
  26 print "print to the .err log anything. Currently, due to a buglet in MySQL,\n";
  27 print "warnings about MySQL lock reservations can appear in the .err log.\n";
  28 print "The test will run very long, even several hours. You can kill\n";
  29 print "the perl processes running this test at any time and do CHECK\n";
  30 print "TABLE on tables innotest2a, b, c, d in the 'test' database.\n";
  31 print "\n";
  32 print "Some of these stress tests will print a lot of SQL errors\n";
  33 print "to the standard output. That is not to be worried about.\n";
  34 print "You can direct the output to a file like this:\n";
  35 print "perl innotest2 > out2\n\n";
  36
  37 print "Generating random keys\n";
  38 $random[$opt_loop_count] = 0;
  39 $rnd_str[$opt_loop_count] = "a";
  40
  41 for ($i = 0; $i < $opt_loop_count; $i++) {
  42
  43         $random[$i] = ($i * 63857) % $opt_loop_count;
  44
  45         if (0 == ($random[$i] % 3)) {
  46                 $rnd_str[$i] = "khD";
  47         } else { if (1 == ($random[$i] % 3)) {
  48                 $rnd_str[$i] = "kHd";
  49         } else { if (2 == ($random[$i] % 3)) {
  50                 $rnd_str[$i] = "khd";
  51         }}}
  52
  53         for ($j = 0; $j < (($i * 764877) % 20); $j++) {
  54                 $rnd_str[$i] = $rnd_str[$i]."k";
  55         }
  56 }
  57
  58 ####
  59 ####  Connect
  60 ####
  61
  62 $dbh = $server->connect()
  63 || die $dbh->errstr;
  64
  65 $dbh->do("set autocommit = 0");
  66
  67 for ($i = 0; $i < 5; $i++) {
  68         print "loop $i\n";
  69
  70         for ($j = 0; $j < $opt_loop_count - 10; $j = $j + 1) {
  71
  72                 $dbh->do("update innotest2a set B = '".$rnd_str[$j + 1]."' where A = ".$random[$j + 5])
  73                 || print $dbh->errstr;
  74
  75                 $dbh->do("delete from innotest2a where A = ".$random[$random[$j]])
  76                 || print $dbh->errstr;
  77
  78                 if (0 == ($j % 10)) {
  79                         $dbh->do("commit");
  80                 }
  81
  82                 if (0 == ($j % 39)) {
  83                         $dbh->do("rollback");
  84                 }
  85
  86                 if (0 == ($j % 1000)) {
  87                         print "round $j\n";
  88                 }
  89         }
  90
  91         $dbh->do("commit");
  92 }
  93
  94 $dbh->disconnect;                               # close connection