Hi all-
Memcached has been locking up on us lately. If I remember correctly
it was Saturday morning, then again Monday morning, and it did it
again today (which manifested in a
badges.fedoraproject.org outage for
users).
We currently don't have any collectd monitoring directly on memcached.
Here's an ansible patch that should add it. Since we're in freeze,
this would need two +1s in order to be able to be applied.
If, for some reason it was broken or hosed up, I could revert it by
removing the /etc/collectd.d/memcached.conf file on both memcached
servers and subsequently restarting the memcached daemon.
Patch follows:
From 6535e0344f4db5b0eb00aeb37007c92f471d7224 Mon Sep 17 00:00:00 2001
From: Ralph Bean <rbean(a)redhat.com>
Date: Wed, 19 Nov 2014 14:37:50 +0000
Subject: [PATCH] Add collectd monitoring for the memcached daemon.
---
playbooks/groups/memcached.yml | 1 +
roles/collectd/memcached/files/memcached.conf | 6 ++++++
roles/collectd/memcached/tasks/main.yml | 8 ++++++++
3 files changed, 15 insertions(+), 0 deletions(-)
create mode 100644 roles/collectd/memcached/files/memcached.conf
create mode 100644 roles/collectd/memcached/tasks/main.yml
diff --git a/playbooks/groups/memcached.yml b/playbooks/groups/memcached.yml
index 5fc955b..90d52b0 100644
--- a/playbooks/groups/memcached.yml
+++ b/playbooks/groups/memcached.yml
@@ -31,6 +31,7 @@
- hosts
- fas_client
- collectd/base
+ - collectd/memcached
- sudo
- memcached
diff --git a/roles/collectd/memcached/files/memcached.conf
b/roles/collectd/memcached/files/memcached.conf
new file mode 100644
index 0000000..d59815b
--- /dev/null
+++ b/roles/collectd/memcached/files/memcached.conf
@@ -0,0 +1,6 @@
+LoadPlugin memcached
+
+<Plugin memcached>
+ Host "localhost"
+ Port "11211"
+</Plugin>
diff --git a/roles/collectd/memcached/tasks/main.yml
b/roles/collectd/memcached/tasks/main.yml
new file mode 100644
index 0000000..3023af7
--- /dev/null
+++ b/roles/collectd/memcached/tasks/main.yml
@@ -0,0 +1,8 @@
+---
+
+- name: Copy in the memcached collectd config
+ copy: src=memcached.conf dest=/etc/collectd.d/memcached.conf
+ tags:
+ - collectd
+ - memcached
+ notify: restart collectd
--
1.7.2.1