seancribbs

$ ack app_helper:get_env src
src/riak_client.erl:759:            case app_helper:get_env(riak_kv, overload_backoff, undefined) of
src/riak_index.erl:444:    Timeout = app_helper:get_env(riak_kv, secondary_index_timeout, ?DEFAULT_TIMEOUT),
src/riak_kv_app.erl:51:    FSM_Limit = app_helper:get_env(riak_kv, fsm_limit, ?DEFAULT_FSM_LIMIT),
src/riak_kv_app.erl:60:    case app_helper:get_env(riak_kv, direct_stats, false) of
src/riak_kv_app.erl:72:    case app_helper:get_env(riak_kv, add_paths) of
src/riak_kv_app.erl:100:    StorageBackend = app_helper:get_env(riak_kv, storage_backend),
src/riak_kv_app.erl:193:            HealthCheckOn = app_helper:get_env(riak_kv, enable_health_checks, false),
src/riak_kv_app.erl:273:    {Low, High} = app_helper:get_env(riak_kv, vnode_mailbox_limit, {1, 5000}),
src/riak_kv_app.erl:324:    case app_helper:get_env(riak_kv, object_format, v0) of

slfritchie

Erlang Tracing: more than you wanted to know

Rough Outline

• What can be traced?
• How can trace events be specified?
• "match specifications": twisty passages, all alike
• WTF, can I just use DTrace and drink my coffee/beer/whisky in peace?
• Trace delivery mechanisms: pick one of two

binarytemple

Riak local client

Riak local client is what you want to read from or write to Riak while running riak attach, and Erlang MapReduce job, or a post_commit hook.

Examples of using Riak local client

11: {ok,Client} = riak:local_client()

-> {ok,{riak_client,['dev1@127.0.0.1',undefined]}}

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

tanodb is a distributed in memory key value store built on top of riak_core.

It is used as the example code for the Little Riak Core Book.

(kudos to @cv for the original version)

I found the following piece of code in a gist, but when I tried to execute it under taminodb, it returned an empty array.

flbuddymooreiv

This is the process of setting up erlang, rebar3, and cowboy for a Hello World, starting with a clean Debian 8 install.

Update apt and install deps:

root@046edcaea45a:~# apt-get update
root@046edcaea45a:~# apt-get install erlang erlang-dev gcc
root@046edcaea45a:~# wget https://s3.amazonaws.com/rebar3/rebar3
root@046edcaea45a:~# mkdir ~/bin/
root@046edcaea45a:~# mv rebar3 ~/bin/
root@046edcaea45a:~# chmod +x ~/bin/rebar3 

QuantumGhost

@startuml
' uncomment the line below if you're using computer with a retina display
' skinparam dpi 300
!define Table(name,desc) class name as "desc" << (T,#FFAAAA) >>
' we use bold for primary key
' green color for unique
' and underscore for not_null
!define primary_key(x) <b>x</b>
!define unique(x) <color:green>x</color>
!define not_null(x) <u>x</u>

binarytemple

DON'T BOTHER USING - BROKE CODE

%% Author: PCHAPIER
%% Created: 25 mai 2010
-module(utility).

%%
%% Include files
%%

magnetikonline

List all Git repository objects by size

• Summary
• Example

Summary

Bash script which will:

• Iterate all commits made within a Git repository.

bryanhuntesl

Create a schema based on the default one

curl "https://raw.githubusercontent.com/basho/yokozuna/develop/priv/default_schema.xml" -O
vim default_schema.xml

Upload your schema