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|
use strict;
use IO::Socket;
use DBI;
# mgm info
my $mgmhost = "localhost";
my $mgmport = 38101;
# location of ndb_x_fs
my $datadir = "c2";
my @schemafiles = <$datadir/ndb_*_fs/D[12]/DBDICT/P0.SchemaLog>;
@schemafiles or die "no schemafiles in $datadir";
my $dsn;
$dsn = "dbi:mysql:test:localhost;port=38100";
# this works better for me
my $cnf = $ENV{MYSQL_HOME} . "/var/my.cnf";
$dsn = "dbi:mysql:database=test;host=localhost;mysql_read_default_file=$cnf";
my $dbh;
$dbh = DBI->connect($dsn, 'root', undef, { RaiseError => 0, PrintError => 0 });
$dbh or die $DBI::errstr;
# mgm commands
my $mgm = undef;
sub mgmconnect {
$mgm = IO::Socket::INET->new(
Proto => "tcp",
PeerHost => $mgmhost,
PeerPort => $mgmport);
$mgm or die "connect to mgm failed: $!";
$mgm->autoflush(1);
};
mgmconnect();
warn "connected to mgm $mgmhost $mgmport\n";
my $nodeinfo = {};
sub getnodeinfo {
$nodeinfo = {};
$mgm->print("get status\n");
$mgm->print("\n");
while (defined($_ = $mgm->getline)) {
/^node\s+status/ && last;
}
while (defined($_ = $mgm->getline)) {
/^\s*$/ && last;
/^node\.(\d+)\.(\w+):\s*(\S+)/ && ($nodeinfo->{$1}{$2} = $3);
}
}
getnodeinfo();
my @dbnode = ();
for my $n (keys %$nodeinfo) {
my $p = $nodeinfo->{$n};
($p->{type} eq 'NDB') && push(@dbnode, $n);
}
@dbnode = sort { $a <=> $b } @dbnode;
@dbnode or die "mgm error, found no db nodes";
warn "db nodes: @dbnode\n";
sub restartnode {
my($n, $initialstart) = @_;
warn "restart node $n initialstart=$initialstart\n";
$mgm->print("restart node\n");
$mgm->print("node: $n\n");
$mgm->print("initialstart: $initialstart\n");
$mgm->print("\n");
while (1) {
sleep 5;
getnodeinfo();
my $status = $nodeinfo->{$n}{status};
my $sp = $nodeinfo->{$n}{startphase};
warn "node $n status: $status sp: $sp\n";
last if $status eq 'STARTED';
}
}
sub restartall {
warn "restart all\n";
$mgm->print("restart all\n");
$mgm->print("\n");
while (1) {
sleep 5;
getnodeinfo();
my $ok = 1;
for my $n (@dbnode) {
my $status = $nodeinfo->{$n}{status};
my $sp = $nodeinfo->{$n}{startphase};
warn "node $n status: $status sp: $sp\n";
$ok = 0 if $status ne 'STARTED';
}
last if $ok;
}
}
# the sql stuff
my $maxtab = 300;
my @tab = ();
sub create {
my($n) = @_;
my $sql = "create table t$n (a int primary key, b varchar(20), key (b)) engine=ndb";
warn "create t$n\n";
$dbh->do($sql) or die "$sql\n$DBI::errstr";
}
sub drop {
my($n) = @_;
my $sql = "drop table t$n";
warn "drop t$n\n";
$dbh->do($sql) or die "$sql\n$DBI::errstr";
}
sub dropall {
for my $n (0..($maxtab-1)) {
my $sql = "drop table if exists t$n";
$dbh->do($sql) or die "$sql\n$DBI::errstr";
}
}
sub createdrop {
my $n = int(rand($maxtab));
if (! $tab[$n]) {
create($n);
$tab[$n] = 1;
} else {
drop($n);
$tab[$n] = 0;
}
}
sub checkschemafiles {
system("printSchemaFile -ce @schemafiles");
$? == 0 or die "schemafiles check failed";
}
sub randomrestart {
my($k) = @_;
my $s = int(rand(500));
if ($s < 2) {
my $i = $k % scalar(@dbnode);
my $n = $dbnode[$i];
my $initialstart = ($s < 1 ? 0 : 1);
restartnode($n, $initialstart);
return 1;
}
if ($s < 3) {
restartall();
return 1;
}
return 0;
}
# deterministic
srand(1);
warn "drop any old tables\n";
dropall();
my $loop = 1000000;
for my $k (0..($loop-1)) {
warn "$k\n";
createdrop();
checkschemafiles();
if (randomrestart($k)) {
checkschemafiles();
}
}
$dbh->disconnect or die $DBI::errstr;
# vim: set sw=2:
|
