From a175314c3e5827eb193872241446f2f8f5c9d33c Mon Sep 17 00:00:00 2001
From: Daniel Baumann <daniel.baumann@progress-linux.org>
Date: Sat, 4 May 2024 20:07:14 +0200
Subject: Adding upstream version 1:10.5.12.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
---
 sql-bench/innotest2b.sh | 104 ++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 104 insertions(+)
 create mode 100644 sql-bench/innotest2b.sh

(limited to 'sql-bench/innotest2b.sh')

diff --git a/sql-bench/innotest2b.sh b/sql-bench/innotest2b.sh
new file mode 100644
index 00000000..56b44eda
--- /dev/null
+++ b/sql-bench/innotest2b.sh
@@ -0,0 +1,104 @@
+#!/usr/bin/env 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: $!\n";
+
+print "Innotest2b: MySQL/InnoDB stress test in Perl for FOREIGN keys\n";
+print "------------------------------------------------------------\n";
+print "This is a randomized stress test for concurrent inserts,\n";
+print "updates, deletes, commits and rollbacks with foreign keys with\n";
+print "the ON DELETE ... clause. The test will generate\n";
+print "also a lot of deadlocks, duplicate key errors, and other SQL errors.\n";
+print "\n";
+print "You should run innotest2, innotest2a, and innotest2b concurrently.\n";
+print "The thing to watch is that the server does not crash or does not\n";
+print "print to the .err log anything. Currently, due to a buglet in MySQL,\n";
+print "warnings about MySQL lock reservations can appear in the .err log.\n";
+print "The test will run very long, even several hours. You can kill\n";
+print "the perl processes running this test at any time and do CHECK\n";
+print "TABLE on tables innotest2a, b, c, d in the 'test' database.\n";
+print "\n";
+print "Some of these stress tests will print a lot of SQL errors\n";
+print "to the standard output. That is not to be worried about.\n";
+print "You can direct the output to a file like this:\n";
+print "perl innotest2 > out2\n\n";
+
+print "Generating random keys\n";
+$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 $i\n";
+
+	for ($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 $j\n";
+		}
+	}	
+	
+	$dbh->do("commit");
+}				
+
+$dbh->disconnect;				# close connection
-- 
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