From d2270e2e5045fa1999e8712394e06c1ff27e6ab3 Mon Sep 17 00:00:00 2001
From: Niklas Yann Wettengel <niyawe@niyawe.de>
Date: Fri, 15 Dec 2017 22:46:27 +0100
Subject: [PATCH] ffmyk influx minimize memory usage

---
 roles/install_monitoring/templates/ffmyk-influx/dhcp.php.j2 | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/roles/install_monitoring/templates/ffmyk-influx/dhcp.php.j2 b/roles/install_monitoring/templates/ffmyk-influx/dhcp.php.j2
index 66371ef..7b81328 100644
--- a/roles/install_monitoring/templates/ffmyk-influx/dhcp.php.j2
+++ b/roles/install_monitoring/templates/ffmyk-influx/dhcp.php.j2
@@ -2,9 +2,9 @@
 
 require('func.php');
 
-        $data = file_get_contents('/var/lib/dhcp/dhcpd.leases');
+        $data = shell_exec("grep -e 'lease [[:digit:]\.]\+ {' -e '\s\+ends' /var/lib/dhcp/dhcpd.leases");
 
-        preg_match_all('/lease ([\d\.]+) \{[^\}]+ends \d+ (\d{4}\/\d{2}\/\d{2} \d+:\d{2}:\d{2});[^\}]+}/s', $data, $match);
+        preg_match_all('/lease ([\d\.]+) \{\n\s+ends \d+ (\d{4}\/\d{2}\/\d{2} \d+:\d{2}:\d{2});/s', $data, $match);
 
         unset($data, $match[0]);