mirror of
https://github.com/percona/percona-toolkit.git
synced 2025-09-10 05:00:45 +00:00
Update alter_active_table.t and fix NibbleIterator to handle a growing table.
This commit is contained in:
Daniel Nichter
@@ -4451,9 +4451,6 @@ sub _get_bounds {
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$self->{no_more_boundaries} = 1;
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}
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$self->{last_upper} = $dbh->selectrow_arrayref($self->{last_ub_sql});
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PTDEBUG && _d('Last upper boundary:', Dumper($self->{last_upper}));
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return;
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}
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@@ -4509,19 +4506,21 @@ sub _next_boundaries {
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my $boundary = $self->{ub_sth}->fetchall_arrayref();
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PTDEBUG && _d('Next boundary:', Dumper($boundary));
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if ( $boundary && @$boundary ) {
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$self->{upper} = $boundary->[0]; # this nibble
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$self->{upper} = $boundary->[0];
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if ( $boundary->[1] ) {
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$self->{next_lower} = $boundary->[1]; # next nibble
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$self->{next_lower} = $boundary->[1];
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}
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else {
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PTDEBUG && _d('End of table boundary:', Dumper($boundary->[0]));
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$self->{no_more_boundaries} = 1; # for next call
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PTDEBUG && _d('Last upper boundary:', Dumper($boundary->[0]));
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}
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}
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else {
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$self->{no_more_boundaries} = 1; # for next call
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$self->{upper} = $self->{last_upper};
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my $dbh = $self->{Cxn}->dbh();
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$self->{upper} = $dbh->selectrow_arrayref($self->{last_ub_sql});
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PTDEBUG && _d('Last upper boundary:', Dumper($self->{upper}));
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$self->{no_more_boundaries} = 1; # for next call
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}
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$self->{ub_sth}->finish();
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@@ -5592,7 +5591,12 @@ sub main {
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. ($nibble_iter->nibble_index() || '?')
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. " index, but MySQL EXPLAIN reports that "
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. ($expl->{key} ? "the $expl->{key}" : "no")
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. " index will be used.\n";
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. " index will be used for "
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. $sth->{upper_boundary}->{Statement}
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. " with values "
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. join(", ", map { defined $_ ? $_ : "NULL" }
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(@{$boundary->{lower}}, $nibble_iter->chunk_size()))
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. "\n";
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die $msg;
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}
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@@ -5635,7 +5639,12 @@ sub main {
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. ($nibble_iter->nibble_index() || '?')
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. " index, but MySQL EXPLAIN reports that "
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. ($expl->{key} ? "the $expl->{key}" : "no")
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. " index will be used.\n";
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. " index will be used for "
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. $sth->{explain_nibble}->{Statement}
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. " with values "
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. join(", ", map { defined $_ ? $_ : "NULL" }
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(@{$boundary->{lower}}, @{$boundary->{upper}}))
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. "\n";
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die $msg;
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}
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@@ -639,11 +639,6 @@ sub _get_bounds {
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$self->{no_more_boundaries} = 1;
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}
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# Get the real last upper boundary, i.e. the last row of the table
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# at this moment. If rows are inserted after, we won't see them.
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$self->{last_upper} = $dbh->selectrow_arrayref($self->{last_ub_sql});
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PTDEBUG && _d('Last upper boundary:', Dumper($self->{last_upper}));
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return;
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}
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@@ -699,25 +694,70 @@ sub _next_boundaries {
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}
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}
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# Two boundaries are being fetched: the upper boundary for this nibble,
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# i.e. the nibble the caller is trying to exec, and the next_lower boundary
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# for the next nibble that the caller will try to exec. For example,
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# if chunking the alphabet, a-z, with chunk size 3, the first call will
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# fetch:
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#
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# a <- lower
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# b
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# c <- upper ($boundary->[0])
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# d <- next_lower ($boundary->[1])
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#
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# Then the second call will fetch:
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#
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# d <- lower
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# e
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# f <- upper
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# g <- next_lower
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#
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# Why fetch both upper and next_lower? We wanted to keep nibbling simple,
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# i.e. one nibble statment, not one for the first nibble, one for "middle"
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# nibbles, and another for the end (this is how older code worked). So the
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# nibble statement is inclusive, but this requires both boundaries for
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# reasons explained in a comment above my $ub_sql in new().
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PTDEBUG && _d($self->{ub_sth}->{Statement}, 'params:',
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join(', ', @{$self->{lower}}), $self->{limit});
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$self->{ub_sth}->execute(@{$self->{lower}}, $self->{limit});
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my $boundary = $self->{ub_sth}->fetchall_arrayref();
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PTDEBUG && _d('Next boundary:', Dumper($boundary));
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if ( $boundary && @$boundary ) {
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$self->{upper} = $boundary->[0]; # this nibble
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# upper boundary for the current nibble.
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$self->{upper} = $boundary->[0];
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if ( $boundary->[1] ) {
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$self->{next_lower} = $boundary->[1]; # next nibble
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# next_lower boundary for the next nibble (will become the lower
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# boundary when that nibble becomes the current nibble).
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$self->{next_lower} = $boundary->[1];
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}
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else {
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# There's no next_lower boundary, so the upper boundary of
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# the current nibble is the end of the table. For example,
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# if chunking a-z, then the upper boundary of the current
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# nibble ($boundary->[0]) is z.
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PTDEBUG && _d('End of table boundary:', Dumper($boundary->[0]));
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$self->{no_more_boundaries} = 1; # for next call
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PTDEBUG && _d('Last upper boundary:', Dumper($boundary->[0]));
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# OobNibbleIterator needs to know the last upper boundary.
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$self->{last_upper} = $boundary->[0];
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}
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}
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else {
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$self->{no_more_boundaries} = 1; # for next call
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$self->{upper} = $self->{last_upper};
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# This code is reached in cases like chunking a-z and the next_lower
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# boundary ($boundary->[1]) falls on z. When called again, no upper
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# or next_lower is found past z so if($boundary && @$boundary) is false.
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# But there's a problem: between the previous call that made next_lower=z
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# and this call, rows might have been inserted, so maybe z is no longer
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# the end of the table. To handle this, we fetch the end of the table
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# once and make the final nibble z-<whatever>.
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my $dbh = $self->{Cxn}->dbh();
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$self->{upper} = $dbh->selectrow_arrayref($self->{last_ub_sql});
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PTDEBUG && _d('Last upper boundary:', Dumper($self->{upper}));
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$self->{no_more_boundaries} = 1; # for next call
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# OobNibbleIterator needs to know the last upper boundary.
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$self->{last_upper} = $self->{upper};
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}
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$self->{ub_sth}->finish();
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@@ -58,7 +58,7 @@ sub new {
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my $q = $self->{Quoter};
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my $o = $self->{OptionParser};
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my $where = $o->get('where');
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my $where = $o->has('where') ? $o->get('where') : undef;
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# If it's not a single nibble table, init our special statements.
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if ( !$self->one_nibble() ) {
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@@ -191,7 +191,6 @@ $ni = make_nibble_iter(
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argv => [qw(--databases test --chunk-size 8)],
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);
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$dbh->do("delete from test.t where c='a' or c='z'");
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@rows = ();
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@@ -204,8 +203,6 @@ is_deeply(
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'a-z nibble 1 with oob'
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) or print Dumper(\@rows);
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$dbh->do("insert into test.t values ('a'), ('z')");
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@rows = ();
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for (1..8) {
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push @rows, $ni->next();
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@@ -226,6 +223,13 @@ is_deeply(
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'a-z nibble 3 with oob'
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) or print Dumper(\@rows);
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# NibbleIterator is done (b-y), now insert a row on the low end (a),
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# and one on the high end (z), past what NibbleIterator originally
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# saw as the first and last boundaries. OobNibbleIterator should kick
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# in and see a and z.
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$dbh->do("insert into test.t values ('a'), ('z')");
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# OobNibbleIterator checks the low end first.
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@rows = ();
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push @rows, $ni->next();
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is_deeply(
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@@ -234,6 +238,7 @@ is_deeply(
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'a-z nibble 4 lower oob'
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) or print Dumper(\@rows);
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# Then it checks the high end.
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@rows = ();
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push @rows, $ni->next();
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is_deeply(
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@@ -13,34 +13,37 @@ use Test::More;
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use PerconaTest;
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use Sandbox;
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require "$trunk/bin/pt-online-schema-change";
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use Time::HiRes qw(usleep);
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use Data::Dumper;
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$Data::Dumper::Indent = 1;
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$Data::Dumper::Sortkeys = 1;
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$Data::Dumper::Quotekeys = 0;
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require "$trunk/bin/pt-online-schema-change";
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my $dp = new DSNParser(opts=>$dsn_opts);
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my $sb = new Sandbox(basedir => '/tmp', DSNParser => $dp);
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my $dbh = $sb->get_dbh_for('master');
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my $master_dbh = $sb->get_dbh_for('master');
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my $slave_dbh = $sb->get_dbh_for('slave1');
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if ( !$dbh ) {
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if ( !$master_dbh ) {
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plan skip_all => 'Cannot connect to sandbox master';
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}
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elsif ( !$slave_dbh ) {
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plan skip_all => 'Cannot connect to sandbox slave';
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}
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else {
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plan tests => 7;
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}
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my $output = "";
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my $cnf = '/tmp/12345/my.sandbox.cnf';
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my @args = ('-F', $cnf, '--execute');
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my $exit = 0;
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my $output;
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my $master_dsn = "h=127.1,P=12345,u=msandbox,p=msandbox";
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my $sample = "t/pt-online-schema-change/samples";
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my $exit;
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my $rows;
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my $query_table_stop = '/tmp/query_table.stop';
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my $query_table_output = '/tmp/query_table.output';
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diag(`rm -rf $query_table_stop`);
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diag(`rm -rf $query_table_output`);
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my $query_table_stop = "/tmp/query_table.$PID.stop";
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my $query_table_output = "/tmp/query_table.$PID.output";
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sub start_query_table {
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my ($db, $tbl, $pkcol) = @_;
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@@ -48,8 +51,8 @@ sub start_query_table {
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diag(`rm -rf $query_table_stop`);
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diag(`echo > $query_table_output`);
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my $cmd = "$trunk/t/pt-online-schema-change/samples/query_table.pl";
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system("$cmd 127.1 12345 $db $tbl $pkcol >$query_table_output &");
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my $cmd = "$trunk/$sample/query_table.pl";
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system("$cmd 127.1 12345 $db $tbl $pkcol $query_table_stop >$query_table_output &");
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return;
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}
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@@ -89,7 +92,7 @@ sub check_ids {
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$n_deleted++ if $n_deleted;
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$n_inserted++;
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$rows = $dbh->selectrow_arrayref(
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$rows = $master_dbh->selectrow_arrayref(
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"SELECT COUNT($pkcol) FROM $db.$tbl");
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is(
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$rows->[0],
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@@ -97,7 +100,7 @@ sub check_ids {
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"New table row count: 500 original + $n_inserted inserted - $n_deleted deleted"
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) or print Dumper($rows);
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$rows = $dbh->selectall_arrayref(
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$rows = $master_dbh->selectall_arrayref(
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"SELECT $pkcol FROM $db.$tbl WHERE $pkcol > 500 AND $pkcol NOT IN ($ids->{inserted})");
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is_deeply(
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$rows,
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@@ -106,7 +109,7 @@ sub check_ids {
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) or print Dumper($rows);
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if ( $n_deleted ) {
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$rows = $dbh->selectall_arrayref(
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$rows = $master_dbh->selectall_arrayref(
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"SELECT $pkcol FROM $db.$tbl WHERE $pkcol IN ($ids->{deleted})");
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is_deeply(
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$rows,
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@@ -122,9 +125,9 @@ sub check_ids {
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};
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if ( $n_updated ) {
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$rows = $dbh->selectall_arrayref(
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"SELECT $pkcol FROM $db.$tbl WHERE $pkcol IN ($ids->{updated}) "
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. "AND c <> 'updated'");
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my $sql = "SELECT $pkcol FROM $db.$tbl WHERE $pkcol IN ($ids->{updated}) "
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. "AND c NOT LIKE 'updated%'";
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$rows = $master_dbh->selectall_arrayref($sql);
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is_deeply(
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$rows,
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[],
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@@ -144,27 +147,39 @@ sub check_ids {
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# #############################################################################
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# Attempt to alter a table while another process is changing it.
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# #############################################################################
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$sb->load_file('master', "t/pt-online-schema-change/samples/small_table.sql");
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$dbh->do('use mkosc');
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$dbh->do('truncate table a');
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diag(`cp $trunk/t/pt-online-schema-change/samples/a.outfile /tmp/`);
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$dbh->do("load data local infile '/tmp/a.outfile' into table mkosc.a");
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diag(`rm -rf /tmp/a.outfile`);
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start_query_table(qw(mkosc a i));
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# Load 500 rows.
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$sb->load_file('master', "$sample/basic_no_fks.sql");
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PerconaTest::wait_for_table($slave_dbh, "pt_osc.t");
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$master_dbh->do("USE pt_osc");
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$master_dbh->do("TRUNCATE TABLE t");
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diag(`cp $trunk/t/pt-online-schema-change/samples/basic_no_fks.data /tmp`);
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$master_dbh->do("LOAD DATA LOCAL INFILE '/tmp/basic_no_fks.data' INTO TABLE pt_osc.t");
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diag(`rm -rf /tmp/basic_no_fks.data`);
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PerconaTest::wait_for_table($slave_dbh, "pt_osc.t", "id=500");
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$master_dbh->do("ANALYZE TABLE pt_osc.t");
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# Start inserting, updating, and deleting rows at random.
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start_query_table(qw(pt_osc t id));
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# While that's ^ happening, alter the table.
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$output = output(
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sub { $exit = pt_online_schema_change::main(@args,
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qw(--chunk-size 100),
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'D=mkosc,t=a', qw(--alter ENGINE=InnoDB --drop-old-table)) },
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sub { $exit = pt_online_schema_change::main(
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"$master_dsn,D=pt_osc,t=t",
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qw(--lock-wait-timeout 5),
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qw(--print --execute --chunk-size 100 --alter ENGINE=InnoDB)) },
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stderr => 1,
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);
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# Stop altering the table.
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stop_query_table();
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$rows = $dbh->selectall_hashref('show table status from mkosc', 'name');
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$rows = $master_dbh->selectall_hashref('SHOW TABLE STATUS FROM pt_osc', 'name');
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is(
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$rows->{a}->{engine},
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$rows->{t}->{engine},
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'InnoDB',
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"New table ENGINE=InnoDB"
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);
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) or warn Dumper($rows);
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is(
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scalar keys %$rows,
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@@ -178,17 +193,12 @@ is(
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"Exit status 0"
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);
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check_ids('mkosc', 'a', 'i', get_ids());
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# ############################################################################
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# Alter an active table with foreign keys.
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# ############################################################################
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check_ids(qw(pt_osc t id), get_ids());
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# #############################################################################
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# Done.
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# #############################################################################
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diag(`rm -rf $query_table_stop`);
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diag(`rm -rf $query_table_output`);
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$sb->wipe_clean($dbh);
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#diag(`rm -rf $query_table_output`);
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#$sb->wipe_clean($master_dbh);
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exit;
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@@ -19,14 +19,21 @@ my $cmd = "$trunk/bin/pt-online-schema-change";
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$output = `$cmd`;
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like(
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$output,
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qr/A DSN with a t part must be specified/,
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qr/DSN must be specified/,
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"Must specify a DSN with t part"
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);
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$output = `$cmd h=127.1,P=12345,u=msandbox,p=msandbox`;
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$output = `$cmd h=127.1,P=12345,t=tbl`;
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like(
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$output,
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qr/The DSN must specify a t/,
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qr/DSN must specify a database \(D\) and a table \(t\)/,
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"DSN must specify a D part"
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);
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$output = `$cmd h=127.1,P=12345,u=msandbox,p=msandbox,D=mysql`;
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like(
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$output,
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qr/DSN must specify a database \(D\) and a table \(t\)/,
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"DSN must specify t part"
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);
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@@ -37,13 +44,6 @@ like(
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"Only 1 DSN allowed"
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);
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$output = `$cmd h=127.1,P=12345,t=tbl`;
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like(
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$output,
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qr/No database was specified/,
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"Either DSN D part or --database required"
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);
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$output = `$cmd --help`;
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like(
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$output,
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@@ -1,500 +0,0 @@
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1 loaded 2011-03-17
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2 loaded 2011-03-17
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3 loaded 2011-03-17
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4 loaded 2011-03-17
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5 loaded 2011-03-17
|
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6 loaded 2011-03-17
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|
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500
t/pt-online-schema-change/samples/basic_no_fks.data
Normal file
500
t/pt-online-schema-change/samples/basic_no_fks.data
Normal file
@@ -0,0 +1,500 @@
|
||||
1 original row 1 2012-03-29
|
||||
2 original row 2 2012-03-29
|
||||
3 original row 3 2012-03-29
|
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4 original row 4 2012-03-29
|
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5 original row 5 2012-03-29
|
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6 original row 6 2012-03-29
|
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7 original row 7 2012-03-29
|
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8 original row 8 2012-03-29
|
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9 original row 9 2012-03-29
|
||||
10 original row 10 2012-03-29
|
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465 original row 465 2012-03-29
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||||
466 original row 466 2012-03-29
|
||||
467 original row 467 2012-03-29
|
||||
468 original row 468 2012-03-29
|
||||
469 original row 469 2012-03-29
|
||||
470 original row 470 2012-03-29
|
||||
471 original row 471 2012-03-29
|
||||
472 original row 472 2012-03-29
|
||||
473 original row 473 2012-03-29
|
||||
474 original row 474 2012-03-29
|
||||
475 original row 475 2012-03-29
|
||||
476 original row 476 2012-03-29
|
||||
477 original row 477 2012-03-29
|
||||
478 original row 478 2012-03-29
|
||||
479 original row 479 2012-03-29
|
||||
480 original row 480 2012-03-29
|
||||
481 original row 481 2012-03-29
|
||||
482 original row 482 2012-03-29
|
||||
483 original row 483 2012-03-29
|
||||
484 original row 484 2012-03-29
|
||||
485 original row 485 2012-03-29
|
||||
486 original row 486 2012-03-29
|
||||
487 original row 487 2012-03-29
|
||||
488 original row 488 2012-03-29
|
||||
489 original row 489 2012-03-29
|
||||
490 original row 490 2012-03-29
|
||||
491 original row 491 2012-03-29
|
||||
492 original row 492 2012-03-29
|
||||
493 original row 493 2012-03-29
|
||||
494 original row 494 2012-03-29
|
||||
495 original row 495 2012-03-29
|
||||
496 original row 496 2012-03-29
|
||||
497 original row 497 2012-03-29
|
||||
498 original row 498 2012-03-29
|
||||
499 original row 499 2012-03-29
|
||||
500 original row 500 2012-03-29
|
||||
@@ -3,9 +3,9 @@ CREATE DATABASE pt_osc;
|
||||
USE pt_osc;
|
||||
CREATE TABLE t (
|
||||
id int auto_increment primary key,
|
||||
c char(16),
|
||||
c char(32),
|
||||
d date,
|
||||
unique index (c(16))
|
||||
unique index (c(32))
|
||||
) ENGINE=MyISAM;
|
||||
INSERT INTO pt_osc.t VALUES
|
||||
(null, 'a', now()),
|
||||
|
||||
@@ -4,9 +4,10 @@ use strict;
|
||||
use warnings FATAL => 'all';
|
||||
use English qw(-no_match_vars);
|
||||
use DBI;
|
||||
use Time::HiRes qw(usleep);
|
||||
use Time::HiRes qw(usleep time);
|
||||
|
||||
my ($host, $port, $db, $tbl, $pkcol, $sleep_time) = @ARGV;
|
||||
my ($host, $port, $db, $tbl, $pkcol, $stop_file, $sleep_time) = @ARGV;
|
||||
die "I need a stop_file argument" unless $stop_file;
|
||||
my $dbh = DBI->connect(
|
||||
"DBI:mysql:$db;host=$host;port=$port;mysql_read_default_group=client",
|
||||
'msandbox', 'msandbox',
|
||||
@@ -23,7 +24,7 @@ my $start_xa = "START TRANSACTION /*!40108 WITH CONSISTENT SNAPSHOT */";
|
||||
$dbh->do($start_xa);
|
||||
|
||||
for my $i ( 1..5_000 ) {
|
||||
last if -f '/tmp/query_table.stop';
|
||||
last if -f $stop_file;
|
||||
|
||||
eval {
|
||||
# We do roughly 25% DELETE, 25% UPDATE and 50% INSERT.
|
||||
@@ -39,13 +40,15 @@ for my $i ( 1..5_000 ) {
|
||||
elsif ($x == 2) {
|
||||
my $id = int(rand(500)) || 1;
|
||||
if ( !grep { $_ == $id } @del ) {
|
||||
$dbh->do("update $db.$tbl set c='updated' where $pkcol=$id");
|
||||
my $t=time;
|
||||
$dbh->do("update $db.$tbl set c='updated row $t' where $pkcol=$id");
|
||||
push @upd, $id;
|
||||
}
|
||||
}
|
||||
else {
|
||||
my $id = 500 + $i;
|
||||
$dbh->do("insert ignore into $db.$tbl ($pkcol, c) values ($id, 'inserted')");
|
||||
my $t=time;
|
||||
$dbh->do("insert ignore into $db.$tbl ($pkcol, c) values ($id, 'new row $t')");
|
||||
push @ins, $id;
|
||||
}
|
||||
|
||||
|
||||
Reference in New Issue
Block a user