diff --git a/net/scripts/install-redis.sh b/net/scripts/install-redis.sh
index 1cfb85fe80..fcc9169129 100755
--- a/net/scripts/install-redis.sh
+++ b/net/scripts/install-redis.sh
@@ -8,3 +8,32 @@ add-apt-repository -y ppa:chris-lea/redis-server
 apt-get --assume-yes install redis
 
 systemctl enable redis-server.service
+
+REDIS_CONF=/etc/redis/redis.conf
+
+if grep -q "^maxmemory " $REDIS_CONF; then
+  echo "setting maxmemory"
+  sed -i '/^maxmemory .*/ s//maxmemory 8gb/' $REDIS_CONF
+else
+  echo "maxmemory not present: appending setting"
+  cat << EOF >> $REDIS_CONF
+
+# limit set by solana/net/scripts/install-redis.sh
+maxmemory 8gb
+EOF
+
+fi
+
+if grep -q "^maxmemory-policy " $REDIS_CONF; then
+  echo "setting maxmemory-policy"
+  sed -i '/^maxmemory-policy .*/ s//maxmemory-policy allkeys-lru/' $REDIS_CONF
+else
+  echo "maxmemory-policy not present: appending setting"
+  cat << EOF >> $REDIS_CONF
+# limit set by solana/net/scripts/install-redis.sh
+maxmemory-policy allkeys-lru
+
+EOF
+fi
+
+service redis-server restart