From 2fd55af0b5e3583e8cfc048441b5a09afd308fab Mon Sep 17 00:00:00 2001
From: Simon Rettberg
Date: Wed, 18 Jul 2018 17:18:51 +0200
Subject: [dnbd3-proxy] Scale maxReplicationSize according to cache partition

---
 .../data/opt/openslx/scripts/systemd-setup_dnbd3_proxy            | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

(limited to 'core/modules/dnbd3-proxy-mode')

diff --git a/core/modules/dnbd3-proxy-mode/data/opt/openslx/scripts/systemd-setup_dnbd3_proxy b/core/modules/dnbd3-proxy-mode/data/opt/openslx/scripts/systemd-setup_dnbd3_proxy
index ff889fde..c9a4997c 100755
--- a/core/modules/dnbd3-proxy-mode/data/opt/openslx/scripts/systemd-setup_dnbd3_proxy
+++ b/core/modules/dnbd3-proxy-mode/data/opt/openslx/scripts/systemd-setup_dnbd3_proxy
@@ -87,7 +87,7 @@ if [ -n "${SLX_DNBD3_SPARSE}" ]; then
 	DNBD3_SPARSE="true"
 fi
 # Determine if we need sparse mode, or override BGR
-cache_size=$(disksize "$DNBD3_DATA_DIR")
+cache_size=$(disksize "$DNBD3_DATA_DIR") # MB
 if ! [ "$cache_size" -gt 120000 ]; then
 	# less than 120GiB or NaN, force
 	[ "$DNBD3_BGR" = "true" ] && slxlog -s -e "dnbd3-setup-small" "Cache partition < 120GiB, forcing background replication OFF and sparse mode ON"
@@ -100,6 +100,9 @@ elif [ "$cache_size" -gt 2000000 ]; then
 	DNBD3_SPARSE="false"
 fi
 
+MAX_REPLICATION_SIZE=$(( cache_size / 6 ))
+[ "$MAX_REPLICATION_SIZE" -lt 100000 ] && MAX_REPLICATION_SIZE=100000
+
 DNBD3_PORT=5003
 rm -f "${DNBD3_CONF_DIR}/server.conf"
 # Refer to http://git.openslx.org/dnbd3.git/tree/conf for configuration options
@@ -117,6 +120,9 @@ removeMissingImages=false
 uplinkTimeout=5000
 clientTimeout=15000
 
+[limits]
+maxReplicationSize=${MAX_REPLICATION_SIZE}M
+
 [logging]
 consoleMask=ERROR WARNING MINOR INFO
 EOF
-- 
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