From aee6a152407de87595cc55d6a678a7a1da79508a Mon Sep 17 00:00:00 2001
From: Michael Fritscher <michael@fritscher.net>
Date: Sun, 16 Aug 2020 11:59:37 +0200
Subject: [PATCH] =?UTF-8?q?Fixes=20quota=20f=C3=BCr=20zvols.=20Without=20t?=
 =?UTF-8?q?his,=20the=20log=20gets=20spammed=20with?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

> 2020/08/16 04:45:24 [ERROR] In RRD: Error updating /var/lib/munin/localdomain/localhost.localdomain-zfs_list_rpool__name-quota-g.rrd: /var/lib/munin/localdomain/localhost.localdomain-zfs_list_rpool__name-quota-g.rrd: Function update_pdp_prep, case DST_GAUGE - Cannot convert '-' to float
---
 plugins/zfs/zfs_list | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/plugins/zfs/zfs_list b/plugins/zfs/zfs_list
index c7abf7da..7307f9d5 100755
--- a/plugins/zfs/zfs_list
+++ b/plugins/zfs/zfs_list
@@ -79,6 +79,12 @@ for i in `zfs list -Hp | awk '{print $1}'`; do
 	values=( $(zfs get -p usedbydataset,usedbychildren,usedbysnapshots,usedbyrefreservation,available,quota $i | awk 'BEGIN {total=0;} { if( NR==1 ) next; } !/quota/ {total=total+$3;} {print $3} END{print total;}') )
 	fsname=$(clean_fieldname $(echo "$i" | sed 's/\//__/g'))
 
+	if [ ${values[5]} = "-" ]; then
+		quota=0
+	else
+		quota=${values[5]}
+	fi
+
 	echo <<EOF "multigraph zfs_list_$fsname
 usedbydataset.value ${values[0]}
 usedbysnapshots.value ${values[2]}
@@ -86,7 +92,7 @@ usedbychildren.value ${values[1]}
 usedbyrefreservation.value ${values[3]}
 available.value ${values[4]}
 total.value ${values[6]}
-quota.value ${values[5]}"
+quota.value $quota"
 EOF
 done