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make work with multiple slots #163

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make work with multiple slots #163

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165a93c
make work with multiple slots
plockaby Jun 27, 2019
c5225ba
Merge branch 'master' into master
plockaby Jul 30, 2020
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54 changes: 35 additions & 19 deletions check_postgres.pl
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Original file line number Diff line number Diff line change
Expand Up @@ -5706,15 +5706,19 @@ sub check_replication_slots {
$SQL = q{
WITH slots AS (SELECT slot_name,
slot_type,
coalesce(restart_lsn, '0/0'::pg_lsn) AS slot_lsn,
coalesce(
pg_xlog_location_diff(
case when pg_is_in_recovery() then pg_last_xlog_receive_location() else pg_current_xlog_location() end,
restart_lsn),
0) AS delta,
COALESCE(restart_lsn, '0/0'::pg_lsn) AS slot_lsn,
COALESCE(pg_xlog_location_diff(
CASE
WHEN pg_is_in_recovery() THEN
pg_last_xlog_receive_location()
ELSE
pg_current_xlog_location()
END,
restart_lsn
), 0) AS delta,
active
FROM pg_replication_slots)
SELECT *, pg_size_pretty(delta) AS delta_pretty FROM slots;
SELECT *, pg_size_pretty(delta) AS delta_pretty FROM slots
};

if ($opt{perflimit}) {
Expand All @@ -5728,27 +5732,39 @@ sub check_replication_slots {
my $found = 0;

for $db (@{$info->{db}}) {
my $max = -1;
my $max = 0;
my $total = 0;
$found = 1;
my %s;

for my $r (@{$db->{slurp}}) {
if (skip_item($r->{slot_name})) {
$max = -2 if -1 == $max;
next;
}
if ($r->{delta} >= $max) {
$max = $r->{delta};
}
# keep track of how many slots that we found
++$total;

# apply exclusion rules
next if skip_item($r->{slot_name});

# keep track of the largest backlog
$max = $r->{delta} if ($r->{delta} >= $max);

# keep track of all slots
$s{$r->{slot_name}} = [$r->{delta},$r->{delta_pretty},$r->{slot_type},$r->{slot_lsn},$r->{active}];
}

# record how far back our farthest back slot is
if ($MRTG) {
do_mrtg({one => $max, msg => "SLOT: $db->{slot_name}"});
do_mrtg({one => $max, msg => "DB: $db->{dbname}"});
}
if ($max < 0) {

if (!scalar(keys(%s))) {
$stats{$db->{dbname}} = 0;
add_ok msg('no-match-slotok') if -1 == $max;
add_unknown msg('no-match-slot') if -2 == $max;
if ($total > 0) {
# found slots but they didn't match
add_ok msg('no-match-slot');
} else {
# found no slots
add_ok msg('no-match-slotok');
}
next;
}

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