ajeetraina

LinuxKit for Docker for Mac:


***Cloning LinuxKit Repository:***

Ajeets-MacBook-Air:~ ajeetraina$ sudo git clone https://github.com/linuxkit/linuxkit
Cloning into 'linuxkit'...
remote: Counting objects: 20097, done.
remote: Compressing objects: 100% (14/14), done.
remote: Total 20097 (delta 1), reused 0 (delta 0), pack-reused 20082

Manc

[Unit]
Description=Consul service discovery agent
Requires=network-online.target
After=network.target

[Service]
User=consul
Group=consul
PIDFile=/run/consul/consul.pid
Restart=on-failure

drewkerrigan

Instructions

sudo su ubuntu
sudo -s
apt-get install -y git
git clone https://gist.github.com/94d82c2ac08dfcad488e.git riak_relocatable
cd riak_relocatable
chmod 755 build.sh
./build.sh

eiri

Demonstrate Erlang's 'busy wait' effect on CPU utilization

How?

Just make Erlang to do some light-load task in a bunch of relatively short leaving processes. Calculating PI to 80th digit in batches per 10 procs with short, 8 ms, sleep in-between, to give schedulers a breath space, will do.

Running

Run erl with 8 schedulers and no busy waiting on schedulers at all.

sdebnath

This gist captures what needs to be done to add a new field to Riak's Yokozuna
search index.

Sources:
- https://github.com/basho/yokozuna/issues/130
- http://riak-users.197444.n3.nabble.com/How-to-update-existed-schema-td4032143.html

The code below is for illustration purposes only. Use at your own risk.

1. Create/Update new schema file

binarytemple

Load 10Mb of data into /tmp/foo:

sudo dd if=/dev/disk0 of=/tmp/foo bs=1m count=10

Start loading it into dev1 node

for i in `seq 1 10000`
do curl -XPUT "http://localhost:10018/buckets/food3/keys/ooopp$i" -d@/tmp/foo  

drewkerrigan

Simple Search 2.0 Setup

Create an index

curl -i -XPUT http://localhost:8098/search/index/my_index

Link the index to a bucket

lelandbatey

Description

This simple script will take a picture of a whiteboard and use parts of the ImageMagick library with sane defaults to clean it up tremendously.

The script is here:

#!/bin/bash
convert "$1" -morphology Convolve DoG:15,100,0 -negate -normalize -blur 0x1 -channel RBG -level 60%,91%,0.1 "$2"

Results

bsparrow435

-module(riak_metrics).
-compile(export_all).
 
main([NodeName0, Cookie, Length, Command]) ->
 LocalName = 'riak_metrics@127.0.0.1',
 NodeName = list_to_atom(NodeName0),
 case net_kernel:start([LocalName]) of
        {ok, _} ->
            erlang:set_cookie(node(), list_to_atom(Cookie)),
            case net_kernel:hidden_connect_node(NodeName) of

bsparrow435

API

HTTP

Entry point for all object operations: https://github.com/basho/riak_kv/blob/1.4.2/src/riak_kv_wm_object.erl

delete_resource/2 takes RequestData(Request header, ex: vclock) and Context(Record containing: Bucket, Key, Client): https://github.com/basho/riak_kv/blob/1.4.2/src/riak_kv_wm_object.erl#L888