innotest2b
上传用户:romrleung
上传日期:2022-05-23
资源大小:18897k
文件大小:3k
- #!/usr/bin/perl
- ############################################################################
- # Stress test for MySQL/Innobase combined database
- # (c) 2000 Innobase Oy & MySQL AB
- #
- ############################################################################
- use Cwd;
use DBI;
- use Benchmark;
- $opt_loop_count = 100000;
- $pwd = cwd(); $pwd = "." if ($pwd eq '');
require "$pwd/bench-init.pl" || die "Can't read Configuration file: $!n";
- print "Innotest2b: MySQL/InnoDB stress test in Perl for FOREIGN keysn";
- print "------------------------------------------------------------n";
- print "This is a randomized stress test for concurrent inserts,n";
- print "updates, deletes, commits and rollbacks with foreign keys withn";
- print "the ON DELETE ... clause. The test will generaten";
- print "also a lot of deadlocks, duplicate key errors, and other SQL errors.n";
- print "n";
- print "You should run innotest2, innotest2a, and innotest2b concurrently.n";
- print "The thing to watch is that the server does not crash or does notn";
- print "print to the .err log anything. Currently, due to a buglet in MySQL,n";
- print "warnings about MySQL lock reservations can appear in the .err log.n";
- print "The test will run very long, even several hours. You can killn";
- print "the perl processes running this test at any time and do CHECKn";
- print "TABLE on tables innotest2a, b, c, d in the 'test' database.n";
- print "n";
- print "Some of these stress tests will print a lot of SQL errorsn";
- print "to the standard output. That is not to be worried about.n";
- print "You can direct the output to a file like this:n";
- print "perl innotest2 > out2nn";
- print "Generating random keysn";
- $random[$opt_loop_count] = 0;
- $rnd_str[$opt_loop_count] = "a";
- for ($i = 0; $i < $opt_loop_count; $i++) {
- $random[$i] = ($i * 98641) % $opt_loop_count;
- if (0 == ($random[$i] % 3)) {
- $rnd_str[$i] = "khD";
- } else { if (1 == ($random[$i] % 3)) {
- $rnd_str[$i] = "khd";
- } else { if (2 == ($random[$i] % 3)) {
- $rnd_str[$i] = "kHd";
- }}}
- for ($j = 0; $j < (($i * 764877) % 10); $j++) {
- $rnd_str[$i] = $rnd_str[$i]."k";
- }
- }
- ####
- #### Connect
- ####
- $dbh = $server->connect();
- $dbh->do("set autocommit = 0");
- for ($i = 0; $i < 1; $i++) {
- print "loop $in";
- for ($j = 0; $j < $opt_loop_count - 10; $j = $j + 2) {
- $dbh->do(
- "insert into innotest2b (D, B, C) values (5, '".$rnd_str[$j]."' ,'".$rnd_str[$j]."')")
- || print $dbh->errstr;
- $dbh->do(
- "insert into innotest2a (D, B, C) values (5, '".$rnd_str[$j]."' ,'".$rnd_str[$j]."')")
- || print $dbh->errstr;
-
- $dbh->do(
- "insert into innotest2c (D, B, C) values (5, '".$rnd_str[$j]."' ,'".$rnd_str[$j]."')")
- || print $dbh->errstr;
- $dbh->do("delete from innotest2b where A = ".$random[$random[$j]])
- || print $dbh->errstr;
- $dbh->do("update innotest2b set A = A + 1 where A = ".$random[$j])
- || print $dbh->errstr;
- if (0 == ($j % 10)) {
- $dbh->do("commit");
- }
- if (0 == ($j % 39)) {
- $dbh->do("rollback");
- }
- if (0 == ($j % 1000)) {
- print "round $jn";
- }
- }
-
- $dbh->do("commit");
- }
- $dbh->disconnect; # close connection