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From: Markus Frank <m.frank@proxmox.com>
To: pve-devel@lists.proxmox.com
Date: Thu, 27 Jan 2022 13:52:55 +0100
Message-Id: <20220127125255.65105-1-m.frank@proxmox.com>
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Subject: [pve-devel] [PATCH manager v2] fix #3815: influxdb vmname should be
string
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InfluxDB interprets the vmname 66601 as a number and the vmname vm42 as a String.
This leads to problematic metrics, that will be dropped by influxdb.
Whichever comes first decides how the "schema" is defined.
To change that I added a $quoted hashmap to quote a value.
In this case the value of name.
nodename and host are tags in InfluxDB so the only value they are able
to contain are strings:
https://docs.influxdata.com/influxdb/v2.1/reference/syntax/line-protocol/
Signed-off-by: Markus Frank <m.frank@proxmox.com>
---
PVE/Status/InfluxDB.pm | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/PVE/Status/InfluxDB.pm b/PVE/Status/InfluxDB.pm
index def7e2fd..d63e18ac 100644
--- a/PVE/Status/InfluxDB.pm
+++ b/PVE/Status/InfluxDB.pm
@@ -276,6 +276,7 @@ sub test_connection {
sub build_influxdb_payload {
my ($class, $txn, $data, $ctime, $tags, $excluded, $measurement, $instance) = @_;
+ my $quoted = { name => 1 };
my @values = ();
foreach my $key (sort keys %$data) {
@@ -283,6 +284,10 @@ sub build_influxdb_payload {
my $value = $data->{$key};
next if !defined($value);
+ if (defined($quoted) && $quoted->{$key}) {
+ $value =~ s/\"/\\\"/g;
+ $value = "\"$value\"";
+ }
if (!ref($value) && $value ne '') {
# value is scalar
--
2.30.2