Topic
All writing →Writing about DevOps
4 posts
2015
When I index something in Elasticsearch, why doesn't it show in my search straight after?
Elasticsearch is near-real-time: new documents appear after the next refresh. What that means and how to force it when you must.
Why does Apache Nutch sometimes get stuck using a single thread and crawling slowly?
Why an Apache Nutch crawl collapses to a single fetch queue, and the generate.max.count setting that keeps it spread across sites.
2014
Centralising Clojure/Java logging with Logback, LogStash, ElasticSearch, and Kibana
Shipping Clojure and Java logs from Logback through Logstash into Elasticsearch, and reading them in Kibana.
2012
Deploying Datomic free on EC2 or any Ubuntu system
Installing Datomic Free on Ubuntu or EC2 with an Upstart script, a symlinked runtime for painless upgrades, and rdiff-backup for backups.