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PT-1869: Enable slave list reloading (#456)

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* PT-1869: Enable slave list reloading

* PT-1869: Fix pt-osc/slave_lag sample sizes for more consistent testing results

* PT-1869: Move slaves_to_skip to get_slaves_cb
This commit is contained in:
Mateus Dubiela Oliveira
2020-08-12 11:30:56 -03:00
committed by GitHub
parent f9b510e22f
commit d6ada6a7bf
4 changed files with 213 additions and 84 deletions
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44
lib/MasterSlave.pm
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@@ -29,22 +29,22 @@ use constant PTDEBUG => $ENV{PTDEBUG} || 0;
# Sub: check_recursion_method
# Check that the arrayref of recursion methods passed in is valid
sub check_recursion_method {
sub check_recursion_method {
my ($methods) = @_;
if ( @$methods != 1 ) {
if ( grep({ !m/processlist|hosts/i } @$methods)
&& $methods->[0] !~ /^dsn=/i )
{
die "Invalid combination of recursion methods: "
. join(", ", map { defined($_) ? $_ : 'undef' } @$methods) . ". "
. "Only hosts and processlist may be combined.\n"
}
}
else {
if ( @$methods != 1 ) {
if ( grep({ !m/processlist|hosts/i } @$methods)
&& $methods->[0] !~ /^dsn=/i )
{
die "Invalid combination of recursion methods: "
. join(", ", map { defined($_) ? $_ : 'undef' } @$methods) . ". "
. "Only hosts and processlist may be combined.\n"
}
}
else {
my ($method) = @$methods;
die "Invalid recursion method: " . ( $method || 'undef' )
unless $method && $method =~ m/^(?:processlist$|hosts$|none$|cluster$|dsn=)/i;
}
die "Invalid recursion method: " . ( $method || 'undef' )
unless $method && $method =~ m/^(?:processlist$|hosts$|none$|cluster$|dsn=)/i;
}
}
sub new {
@@ -73,7 +73,7 @@ sub get_slaves {
my $methods = $self->_resolve_recursion_methods($args{dsn});
return $slaves unless @$methods;
if ( grep { m/processlist|hosts/i } @$methods ) {
my @required_args = qw(dbh dsn);
foreach my $arg ( @required_args ) {
@@ -86,7 +86,7 @@ sub get_slaves {
{ dbh => $dbh,
dsn => $dsn,
slave_user => $o->got('slave-user') ? $o->get('slave-user') : '',
slave_password => $o->got('slave-password') ? $o->get('slave-password') : '',
slave_password => $o->got('slave-password') ? $o->get('slave-password') : '',
callback => sub {
my ( $dsn, $dbh, $level, $parent ) = @_;
return unless $level;
@@ -118,7 +118,7 @@ sub get_slaves {
else {
die "Unexpected recursion methods: @$methods";
}
return $slaves;
}
@@ -798,7 +798,7 @@ sub short_host {
# Returns:
# True if the proclist item is the given type of replication thread.
sub is_replication_thread {
my ( $self, $query, %args ) = @_;
my ( $self, $query, %args ) = @_;
return unless $query;
my $type = lc($args{type} || 'all');
@@ -814,7 +814,7 @@ sub is_replication_thread {
# On a slave, there are two threads. Both have user="system user".
if ( ($query->{User} || $query->{user} || '') eq "system user" ) {
PTDEBUG && _d("Slave replication thread");
if ( $type ne 'all' ) {
if ( $type ne 'all' ) {
# Match a particular slave thread.
my $state = $query->{State} || $query->{state} || '';
@@ -831,7 +831,7 @@ sub is_replication_thread {
|Reading\sevent\sfrom\sthe\srelay\slog
|Has\sread\sall\srelay\slog;\swaiting
|Making\stemp\sfile
|Waiting\sfor\sslave\smutex\son\sexit)/xi;
|Waiting\sfor\sslave\smutex\son\sexit)/xi;
# Type is either "slave_sql" or "slave_io". The second line
# implies that if this isn't the sql thread then it must be
@@ -919,7 +919,7 @@ sub get_replication_filters {
replicate_do_db
replicate_ignore_db
replicate_do_table
replicate_ignore_table
replicate_ignore_table
replicate_wild_do_table
replicate_wild_ignore_table
);
@@ -931,7 +931,7 @@ sub get_replication_filters {
$filters{slave_skip_errors} = $row->[1] if $row->[1] && $row->[1] ne 'OFF';
}
return \%filters;
return \%filters;
}