| class ActiveRecord::Base | |
| @@cache_store = nil | |
| def self.cache_store | |
| @@cache_store ||= ActionController::Base.cache_store | |
| end | |
| def self.caches(method_name, key = nil, options = {}, &block) | |
| if key.is_a?(Hash) | |
| options = key | |
| key = nil |
| class QueryTracer < ActiveSupport::LogSubscriber | |
| ACCEPT = %r{^(app|config|lib)}.freeze | |
| FRAMES = 5 | |
| THRESHOLD = 300 # In ms | |
| def sql(event) | |
| return unless event.duration > THRESHOLD | |
| callers = Rails. | |
| backtrace_cleaner. |
| module ActiveRecord | |
| module ConnectionAdapters | |
| class AbstractAdapter | |
| protected | |
| # Turn: | |
| # User Load (6.3ms) SELECT * FROM "users" | |
| # Into: | |
| # User Load /app/views/_partial.erb:27 (6.3ms) in `_app_views_partial_erb` SELECT * FROM "users" |
| activerehashing yes | |
| appendfsync everysec | |
| appendonly no | |
| bind 0.0.0.0 | |
| daemonize yes | |
| databases 1 | |
| dbfilename dump_1.rdb | |
| dir /var/redis/ | |
| glueoutputbuf yes | |
| hash-max-zipmap-entries 512 |
| gemcutter => redis downloads spec | |
| ================================= | |
| keys | |
| ---- | |
| downloads => global counter for all gem downloads | |
| downloads:today => sorted set for downloads from today | |
| downloads:rubygem:rails => counter for all rails downloads | |
| downloads:version:rails-2.3.5 => counter for all rails 2.3.5 downloads |
| require 'v8' | |
| require 'open-uri' | |
| require 'pp' | |
| require 'ap' | |
| require 'taka' | |
| require 'ostruct' | |
| # | |
| # Monkey patch all elements to include a 'style' attribute | |
| # |
| .DS_Store | |
| Gemfile.lock | |
| *.pem | |
| node.json | |
| tmp/* | |
| !tmp/.gitignore |
WAL-E needs to be installed on all machines, masters and slaves.
Only one machine, the master, writes WAL segments via continuous archiving. The configuration for the master postgresql.conf is:
archive_mode = on
archive_command = 'envdir /etc/wal-e.d/env wal-e wal-push %p'
archive_timeout = 60
| CREATE KEYSPACE IF NOT EXISTS docstore WITH replication = { 'class' : 'SimpleStrategy', 'replication_factor' : 1 }; | |
| CREATE TABLE IF NOT EXISTS docstore.metadata ( | |
| userid text, | |
| docid text, | |
| joinkey text, | |
| title text, | |
| body text, | |
| PRIMARY KEY(userid, docid)); |
A little background on my context:
We run multiple Solr JVMs per box, which live in directories like:
/mnt/solr_8983
/mnt/solr_8984
/mnt/solr_8985
...
/mnt/solr_${PORT}