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check_disk_space: handle relative symlinks for the WAL directory #142

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check_disk_space: handle relative symlinks for the WAL directory #142

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7 changes: 7 additions & 0 deletions check_postgres.pl
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Original file line number Diff line number Diff line change
Expand Up @@ -26,6 +26,7 @@ package check_postgres;
use File::Temp qw/tempfile tempdir/;
File::Temp->safe_level( File::Temp::MEDIUM );
use Cwd;
use Cwd 'abs_path';
use Data::Dumper qw/Dumper/;
$Data::Dumper::Varname = 'POSTGRES';
$Data::Dumper::Indent = 2;
Expand Down Expand Up @@ -4995,6 +4996,12 @@ sub check_disk_space {
my $xlog = "$datadir/pg_xlog";
if (-l $xlog) {
my $linkdir = readlink($xlog);

## Handle relative symbolic links
if ($linkdir =~ m|^\.|) {
$linkdir = abs_path("$datadir/$linkdir");
}

$dir{$linkdir} = 1 if ! exists $dir{$linkdir};
}
}
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