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PT-139 Detect only 1 slave using rep channels

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If there is only one slave but it is using replication channels but
--channel was not specified as a parameter, get_slave_status will
return null.
This commit is contained in:
Carlos Salguero
2017-05-22 15:48:32 -03:00
parent fc4b3a73ee
commit 8ca82d085e
2 changed files with 20 additions and 1 deletions
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7
lib/MasterSlave.pm
View File

@@ -457,7 +457,12 @@ sub get_slave_status {
}
}
} else {
$ss = $sss_rows->[0];
if ($sss_rows->[0]->{channel_name} && $sss_rows->[0]->{channel_name} ne $self->{channel}) {
warn 'This server is using replication channels but "channel" was not specified on the command line';
return undef;
} else {
$ss = $sss_rows->[0];
}
}
if ( $ss && %$ss ) {

14
t/lib/MasterSlave.t
View File

@@ -814,6 +814,20 @@ SKIP: {
'Wait for master returned error',
);
# After stopping one of the replication channels, show slave status returns only one slave
# but it has a channel name and we didn't specified a channels name in the command line.
# It should return undef
$slave1_dbh->do("STOP SLAVE for channel 'masterchan2'");
$css = $ms->get_slave_status($slave1_dbh);
is (
$css,
undef,
'Cannot determine slave in a multi source config without --channel param (only one server)'
);
$slave1_dbh->do("START SLAVE for channel 'masterchan2'");
# Now try specifying a channel name
$ms->{channel} = 'masterchan1';
$css = $ms->get_slave_status($slave1_dbh);