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custom_query perfdata multi-row output improvements #122

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custom_query perfdata multi-row output improvements #122

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4dd5aa2
custom_query perfdata multi-row variable names
swanson8r Sep 25, 2017
40ad646
avoid duplicate perfdata for multirow custom_query
swanson8r Sep 25, 2017
a71996c
initialize perfdata variables before comparison
swanson8r Sep 25, 2017
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custom_query perfdata multi-row variable names 
Allow custom_query checks with multiple rows of output to populate the second returned column as the perfdata variable name. Pass the result value as the perfdata value. Helpful for count(*) GROUP BY queries.
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@swanson8r
swanson8r authored Sep 25, 2017
commit 4dd5aa252b718b4492fa1c8d055b76c56986b5b8
17 changes: 13 additions & 4 deletions check_postgres.pl
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Original file line number Diff line number Diff line change
Expand Up @@ -4398,9 +4398,13 @@ sub check_custom_query {

my $goodrow = 0;

## The other column tells it the name to use as the perfdata value
## If there is a single row and at least 2 columns,
## the other column tells it the name to use as the perfdata value
## If there are multiple rows and at least 2 columns,
## use the second column value as the perfdata name,
## use the result value as the perfdata value.
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Added comments to explain exactly how the query results are processed into performance data

my $perfname;

my $grandtotal = @{$db->{slurp}};
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check the number of rows returned by the custom query

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Get the returned custom query row count

for my $r (@{$db->{slurp}}) {
my $result = $r->{result};
if (! defined $perfname) {
Expand All @@ -4413,8 +4417,13 @@ sub check_custom_query {
}
$goodrow++;
if ($perfname) {
$db->{perf} .= sprintf ' %s=%s;%s;%s',
perfname($perfname), $r->{$perfname}, $warning, $critical;
if ($grandtotal > 1) {
$db->{perf} = sprintf ' %s=%s;%s;%s',
perfname($r->{$perfname}), $result, $warning, $critical;
} else {
$db->{perf} .= sprintf ' %s=%s;%s;%s',
perfname($perfname), $r->{$perfname}, $warning, $critical;
}
}
my $gotmatch = 0;
if (! defined $result) {
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