#!/usr/bin/env perl ############################################################################ # Stress test for MySQL/InnoDB combined database # (c) 2002 Innobase Oy & MySQL AB # ############################################################################
print "Innotest1b: 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";
fetch_all_rows($dbh, "select b, c from innotest1 where a > ".$random[$j]." and a < ".($random[$j] + 7));
if (0 == ($j % 37)) {
$dbh->do("commit");
}
if (0 == ($j % 533)) {
$dbh->do("rollback");
}
if (0 == ($j % 537)) {
print fetch_all_rows($dbh, "select c from innotest1 where c = '".$rnd_str[$j - 67]."'");
print fetch_all_rows($dbh, "select b from innotest1 where b = '".$rnd_str[$j - 688]."'");
print fetch_all_rows($dbh, "select b, c from innotest1 where c = '".$rnd_str[$j - 67]."'");
print fetch_all_rows($dbh, "select b, c from innotest1 where b = '".$rnd_str[$j - 622]."'");
print fetch_all_rows($dbh, "select a, b, c from innotest1 where c = '".$rnd_str[$j - 68]."'");
print fetch_all_rows($dbh, "select a, b, c from innotest1 where b = '".$rnd_str[$j - 644]."'");
print fetch_all_rows($dbh, "select d, b, c from innotest1 where c = '".$rnd_str[$j - 68]."'");
print fetch_all_rows($dbh, "select d, b, c from innotest1 where b = '".$rnd_str[$j - 677]."'");
print "\n";
}
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