#!/usr/bin/env perl ############################################################################ # Stress test for MySQL/InnoDB combined database # (c) 2002 Innobase Oy & MySQL AB # ############################################################################
print "Innotest1: MySQL/InnoDB stress test in Perl\n";
print "-------------------------------------------\n";
print "This is a randomized stress test for concurrent inserts,\n";
print "updates, deletes, commits and rollbacks. The test will generate\n";
print "also a lot of deadlocks, duplicate key errors, and other SQL errors.\n";
print "\n";
print "You should run innotest1, innotest1a, and innotest1b concurrently.\n";
print "The thing to watch is that the server does not crash or does not\n";
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 kill\n";
print "the perl processes running this test at any time and do CHECK\n";
print "TABLE on table innotest1 in the 'test' database.\n";
print "\n";
print "Some of these stress tests will print a lot of SQL errors\n";
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 innotest1 > out1\n\n";
print "Generating random keys\n";
$random[$opt_loop_count] = 0;
$rnd_str[$opt_loop_count] = "a";
$dbh->do( "create table innotest1 (A INT NOT NULL AUTO_INCREMENT, D INT NOT NULL, B VARCHAR(200) NOT NULL, C VARCHAR(175), E TIMESTAMP, F TIMESTAMP, G DATETIME, PRIMARY KEY (A, D), INDEX
(B, C), INDEX (C), INDEX (D), INDEX(E), INDEX(G)) TYPE = INNODB")
|| die $dbh->errstr;
$dbh->do("update innotest1 set B = '".$rnd_str[$j + 7]."' where A = ".$random[$j + 5]);
$dbh->do("update innotest1 SET D = D + 1 where A =".($j / 2 - 500));
$dbh->do("update innotest1 set B = '".$rnd_str[$j + 1]."' where A =".($j / 2 - 505));
$dbh->do("delete from innotest1 where A = ".$random[$random[$j]]);
fetch_all_rows($dbh, "select b, c from innotest1 where a > ".$random[$j]." and a < ".($random[$j] + 7));
if (0 == ($j % 10)) {
$dbh->do("commit");
}
if (0 == ($j % 97)) {
fetch_all_rows($dbh, "select c, e, f, g from innotest1 where c = '".$rnd_str[$j - 68]."'");
fetch_all_rows($dbh, "select b, e, f, g from innotest1 where b = '".$rnd_str[$j - 677]."'");
fetch_all_rows($dbh, "select b, c, e, f, g from innotest1 where c = '".$rnd_str[$j - 68]."'");
fetch_all_rows($dbh, "select b, c, g from innotest1 where b = '".$rnd_str[$j - 677]."'");
fetch_all_rows($dbh, "select a, b, c, e, f, g from innotest1 where c = '".$rnd_str[$j - 68]."'");
fetch_all_rows($dbh, "select a, b, c, e, f, g from innotest1 where b = '".$rnd_str[$j - 677]."'");
fetch_all_rows($dbh, "select d, b, c from innotest1 where c = '".$rnd_str[$j - 68]."'");
fetch_all_rows($dbh, "select d, b, c, g from innotest1 where b = '".$rnd_str[$j - 677]."'");
$dbh->do("rollback");
}
for ($k = 1; $k < 10; $k++) {
$n += fetch_all_rows($dbh, "SELECT a, d from innotest1 where a = ".(($k * 1764767) % $j));
$n += fetch_all_rows($dbh, "SELECT * from innotest1 where a = ".(($k * 187567) % $j));
Die Informationen auf dieser Webseite wurden
nach bestem Wissen sorgfältig zusammengestellt. Es wird jedoch weder Vollständigkeit, noch Richtigkeit,
noch Qualität der bereit gestellten Informationen zugesichert.
Bemerkung:
Die farbliche Syntaxdarstellung und die Messung sind noch experimentell.