tzach

(setq github-project-prefix "https://github.com/scylladb/scylla/issues/")

(defun create-github-issue (string  &optional from to)
  "replace a #xxx with [#xxx](https://github.com/scylladb/scylla/issues/xxx)"
  (interactive
   (if (use-region-p)
       (list nil (region-beginning) (region-end))
     (let ((bds (bounds-of-thing-at-point 'paragraph)) )
       (list nil (car bds) (cdr bds)) ) ) )
  (let (workOnStringP inputStr outputStr)

tzach

/***************************/
/* simple root car         */
/***************************/

// engine part from 
// http://www.instructables.com/id/Control-DC-and-stepper-motors-with-L298N-Dual-Moto/?ALLSTEPS
// sndor part from 
// http://www.instructables.com/id/Simple-Arduino-and-HC-SR04-Example/?ALLSTEPS

/*

tzach

## Presto
$ cd etc

etc$ ls -la
total 28
drwxrwxr-x 3 tzach tzach 4096 Jun 27 10:24 .
drwxr-xr-x 8 tzach tzach 4096 Jun 27 10:24 ..
drwxrwxr-x 2 tzach tzach 4096 Jun 27 10:19 catalog
-rw-rw-r-- 1 tzach tzach  203 Jun 27 10:19 config.properties
-rw-rw-r-- 1 tzach tzach  176 Jun 27 10:18 jvm.config

tzach

## This Ansible script start a cluster of 3 nodes on EC2
## And attach 10 ESB, 100G each

- name: Provision voulums
  hosts: localhost
  connection: local
  vars:
    region: us-east-1
    cluster_nodes: 3
    user_data: "--clustername test-cluster --totalnodes {{cluster_nodes}}"

tzach

cat scylla.1.2.1.metrics.txt | sed 's/.$//' | sed 's/^.//' | cut -d"/" -f2- | sed 's/.$//' | sort

tzach

cqlsh> 
CREATE KEYSPACE mykeyspace WITH REPLICATION = { 'class' : 'SimpleStrategy', 'replication_factor' : 1 };
use mykeyspace ;
CREATE TABLE users (user_id int PRIMARY KEY, fname text, lname text);
insert into users (user_id , fname, lname) values (1, 'tzach', 'livyatan');
insert into users (user_id , fname, lname) values (2, 'dor', 'laor');                                                               
insert into users (user_id , fname, lname) values (3, 'shlomi', 'laor');                                                            
insert into users (user_id , fname, lname) values (4, 'shlomi', 'livne');                                                           
insert into users (user_id , fname, lname) values (6, 'avi', 'kivity'); 

tzach

(custom-set-variables
 ;; custom-set-variables was added by Custom.
 ;; If you edit it by hand, you could mess it up, so be careful.
 ;; Your init file should contain only one such instance.
 ;; If there is more than one, they won't work right.
 '(erc-nick "tzach")
 '(package-selected-packages
   (quote
    (magithub magit helm cider emacsql-mysql twittering-mode ## yaml-mode starter-kit-ruby starter-kit-js starter-kit-eshell starter-kit-bindings scss-mode scala-mode markdown-preview-mode markdown-preview-eww less-css-mode langtool json-mode json js2-mode es-windows emstar clojure-project-mode)))
 '(show-paren-mode t))

tzach

  /***************************/
  /* simple robot car         */
  /***************************/
  
  // engine part from 
  // http://www.instructables.com/id/Control-DC-and-stepper-motors-with-L298N-Dual-Moto/?ALLSTEPS
  // sndor part from 
  // http://www.instructables.com/id/Simple-Arduino-and-HC-SR04-Example/?ALLSTEPS
  
  /*

tzach

(use 'ring.util.response
     'ring.adapter.jetty)


;;;;; handler
(defn hello-handler [req] 
  (-> 
   (response "Hello")
   (content-type "text/html")))

tzach

#########
This is a step by step instruction for running a cluster of 3 Scylla nodes and a Scylla monitoring servers, all as Docker images on the same box.
#########

# prerequisites (centos 7)
sudo yum install tmux emacs git wget -y

sudo tee /etc/yum.repos.d/docker.repo <<-'EOF'
[dockerrepo]
name=Docker Repository