# Chef Server
* The Chef Server runbook: https://docs.chef.io/runbook.html
* Tuning the Chef Server for scale: http://irvingpop.github.io/blog/2015/04/20/tuning-the-chef-server-for-scale
* pgAdmin 3:  https://www.pgadmin.org/

# Linux
* Brendan Gregg - Linux Performance: http://www.brendangregg.com/linuxperf.html
* Brendan Gregg - USE method: http://www.brendangregg.com/usemethod.html

# Postgres
* Introduction to Postgres for Sysadmins: http://www.slideshare.net/jkshah/introduction-to-postgresql-for-system-administrators
* EXPLAIN visualizer: https://explain.depesz.com/ 
* Pgtune: http://pgfoundry.org/projects/pgtune
* Pgbadger: http://dalibo.github.io/pgbadger/
 
# Solr
* Solr performance tuning: https://wiki.apache.org/solr/SolrPerformanceProblems
* GCViewer: https://github.com/chewiebug/GCViewer/wiki

# Fixie and REPLs
* https://github.com/chef/fixie/blob/master/doc/GETTING_STARTED.md
* REPL driven development with pry:  https://www.youtube.com/watch?v=D9j_Mf91M0I
* Using `chef/rest` as a REPL: https://gist.github.com/irvingpop/a8188a111e1d641d4476
* 

# Erlang tracing
* Collecting erchef and bifrost metrics via rpc:  https://gist.github.com/irvingpop/679e9ce3eaeda2602f6b
* https://github.com/massemanet/eper/