fix naming of memory limit variables to use geth_ prefix

Signed-off-by: Jakub Sokołowski <jakub@status.im>

defaults/main.yml

@@ -77,8 +77,6 @@ geth_network_name: 'ropsten'
 
 # Port to listen on
 geth_port: 30303
-# Memory to use
-geth_cache: 1536
 # Address to advertise
 geth_public_addr: '{{ ansible_host }}'
 
@@ -94,9 +92,13 @@ geth_consul_extra_tags: []
 geth_consul_tags: '{{ geth_consul_default_tags + geth_consul_extra_tags }}'
 
 # resources limits to avoid killing the host
-cont_mem_ratio: 0.7
-cont_mem_limit: '{{ (ansible_memtotal_mb * cont_mem_ratio|float) | int }}'
-cont_swap_limit: '{{ (cont_mem_limit|int) + (ansible_swaptotal_mb * cont_mem_ratio|float) | int }}'
+# Geth cache usage limit
+geth_cache_ratio: 0.4
+geth_cache_size: '{{ (ansible_memtotal_mb * geth_cache_ratio|float) | int }}'
+# Container memory limits
+geth_cont_mem_ratio: 0.6
+geth_cont_mem_limit: '{{ (ansible_memtotal_mb * geth_cont_mem_ratio|float) | int }}'
+geth_cont_swap_limit: '{{ (geth_cont_mem_limit|int) + (ansible_swaptotal_mb * geth_cont_mem_ratio|float) | int }}'
 
 # generic container beaviour
 cont_state: started

tasks/checks.yml

@@ -2,7 +2,7 @@
 - name: Verify memory and cache sizes
   assert:
     that:
-      - cont_mem_limit > geth_cache
-    fail_msg: 'Memory limit cant be lower than cache: {{ cont_mem_limit }} > {{ geth_cache }}'
-    success_msg: 'Memory limit is higher than cache size: {{ cont_mem_limit }} > {{ geth_cache }}'
+      - geth_cont_mem_limit|int > geth_cache_size|int
+    fail_msg: 'Memory limit cant be lower than cache: {{ geth_cont_mem_limit }} > {{ geth_cache_size }}'
+    success_msg: 'Memory limit is higher than cache size: {{ geth_cont_mem_limit }} > {{ geth_cache_size }}'
     quiet: true

tasks/container.yml

@@ -10,8 +10,8 @@
     recreate: '{{ cont_recreate }}'
     restart: '{{ cont_restart }}'
     # some limits due to statusd hogging resources
-    memory: '{{ cont_mem_limit }}m'
-    memory_swap: '{{ cont_swap_limit }}m'
+    memory: '{{ geth_cont_mem_limit }}m'
+    memory_swap: '{{ geth_cont_swap_limit }}m'
     ports:
       - '{{ geth_port }}:{{ geth_port }}/tcp'
       - '{{ geth_port }}:{{ geth_port }}/udp'
@@ -46,7 +46,7 @@
       --nousb
       --extradata={{ geth_extra_data }}
       --verbosity={{ geth_log_level_id }} 
-      --cache={{ geth_cache }}
+      --cache={{ geth_cache_size }}
       --maxpeers={{ geth_max_peers }}
       --maxpendpeers="{{ geth_max_pend_peers }}"
       --port={{ geth_port }}