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authorAlex Schultz <aschultz@redhat.com>2017-02-08 09:37:05 -0700
committerAlex Schultz <aschultz@redhat.com>2017-02-12 14:39:37 -0700
commit97e0768dfae29caeb78acc6fe3427d01762315cf (patch)
treeb944d8f0c60b7a3c8bc863bd11bb2002f1a691c1
parentbe6a66042e14abfc3a1b649ed144bb755c750424 (diff)
Reduce memcached memory configuration
Previously the memcached configuration was set to use the defaults which would be 95% of the avaiable ram in the system. This can lead to memory contention issues if memcache is heavily utilized. This change reduces the default to 50% and exposes the ability to tune this configuration. Change-Id: Ie8a48ff4cf509e93d7c1487813d5feed5e5131a4 Closes-Bug: #1662941
-rw-r--r--puppet/services/memcached.yaml7
-rw-r--r--releasenotes/notes/memcached-max-memory-ef6834d17953fca6.yaml7
2 files changed, 14 insertions, 0 deletions
diff --git a/puppet/services/memcached.yaml b/puppet/services/memcached.yaml
index eba8a58b..146cc306 100644
--- a/puppet/services/memcached.yaml
+++ b/puppet/services/memcached.yaml
@@ -18,6 +18,12 @@ parameters:
description: Mapping of service endpoint -> protocol. Typically set
via parameter_defaults in the resource registry.
type: json
+ MemcachedMaxMemory:
+ default: '50%'
+ description: The maximum amount of memory for memcached to be configured
+ to use when installed. This can be either a percentage ('50%')
+ or a fixed value ('2048').
+ type: string
MonitoringSubscriptionMemcached:
default: 'overcloud-memcached'
type: string
@@ -35,6 +41,7 @@ outputs:
# internal_api_uri -> [IP]
# internal_api_subnet - > IP/CIDR
memcached::listen_ip: {get_param: [ServiceNetMap, MemcachedNetwork]}
+ memcached::max_memory: {get_param: MemcachedMaxMemory}
tripleo.memcached.firewall_rules:
'121 memcached':
dport: 11211
diff --git a/releasenotes/notes/memcached-max-memory-ef6834d17953fca6.yaml b/releasenotes/notes/memcached-max-memory-ef6834d17953fca6.yaml
new file mode 100644
index 00000000..c14cefa0
--- /dev/null
+++ b/releasenotes/notes/memcached-max-memory-ef6834d17953fca6.yaml
@@ -0,0 +1,7 @@
+---
+features:
+ - |
+ Memcached max memory configuration is now exposed va MemcachedMaxMemory.
+upgrade:
+ - |
+ Reduce the default memory configuration for memcached from 95% to 50%.