post-thumb

ElasticSearch & Drawing Polygons for debugging

From time to time I need to troubleshoot why search results are not returning a particular listing when dealing with Elasticsearch & Geo Polygons. It can be solved mathematically as well but I ma...

Continue Reading
post-thumb

Compiling tesseract-ocr + training on centos 6

Installation steps are outlined here. However for  training additional steps are required sudo yum install cairo-devel pango-devel libicu-devel But I am still getting errors No rule to make target `t...

Continue Reading
post-thumb

PHP DNS Server & Benchmarking Vs PDNS-MySQL

Github link to experiment files. I have been running a hobby DNS Hosting service for couple of years. DNS servers are powered by Power DNS (aka PDNS) with Mysql backend on commodity hardware. Recent...

Continue Reading