xemoe

Executing a search

ElasticSearch was born as a search engine. Its main work is to process queries and give results. As we'll see in this recipe, search in ElasticSearch is not only limited to match some documents, but also to calculate additional information required to improve user experience.

The HTTP method used to execute a search is GET (but POST also works), the REST URLS are as follows:

http://<server>/_search
http://<server>/<index_name(s)>/_search
http://<server>/<index_name(s)>/<type_name(s)>/_search

---

xemoe

function histogram_settings(jQuery, d3, id, colors, data) {

    var t = this;
    var stack = d3.layout.stack();
    stack(data);

    t.getId = function() { 
        return id; 
    }
    t.getDataset = function() { 

xemoe

echo $(dpkg --list | grep linux-image | awk '{ print $2 }' | sort -V | sed -n '/'`uname -r`'/q;p') $(dpkg --list | grep linux-headers | awk '{ print $2 }' | sort -V | sed -n '/'"$(uname -r | sed "s/\([0-9.-]*\)-\([^0-9]\+\)/\1/")"'/q;p') | xargs sudo apt-get -y purge

xemoe

How to generate PDF reports file from html views

1. generate filename with .html extension
2. geneate pdf output filename with .pdf extension
3. set pdf tmp path variables

    E.g. /tmp/my_reports.pdf

4. set command template

 /usr/bin/xvfb-run --server-args="-screen 0, 1024x768x24" /usr/bin/wkhtmltopdf %s %s

xemoe

Ansible with Ubuntu

1. setup ansible playbook from ppa for latest available update
2. create sample local playbook <E.g. whoami>
3. execute playbook to remote server

---

The first task - setup ansible package from ppa

just a simple command

xemoe

<?php

trait Bar1
{
    function getBody($type, &$body) {
        switch($type) {
        case 1:
            $body = 'A';
            break;
        case 2:

xemoe

ssh -L 8080:localhost:80 user@remote-host

xemoe

MYMEM=$(printf "%.2f" $(( $(vmstat -s | head -n1 | awk '{print $1}') * 0.5 )) | numfmt --to=si --from-unit=K)

xemoe

#
# Mariadb mirror list
# Generate since: 2015-11-14 05:17:40

deb [arch=amd64,i386] http://mirrors.bestthaihost.com/mariadb/repo/10.1/ubuntu trusty main
deb-src http://mirrors.bestthaihost.com/mariadb/repo/10.1/ubuntu trusty main

deb [arch=amd64,i386] http://mirrors.opencas.cn/mariadb/repo/10.1/ubuntu trusty main
deb-src http://mirrors.opencas.cn/mariadb/repo/10.1/ubuntu trusty main

xemoe

http://www.howtogeek.com/howto/40702/how-to-manage-and-use-lvm-logical-volume-management-in-ubuntu/

Ubuntu package

sudo apt-get install lvm2

Format partition with type 8e

Create lvm physical volume