andytill

Erlang Record Migrations

A proposal for the syntax for migrations. Separate record definitions with the same name. Each definition has a version increment, each definition defines fields which are in addition to the previous versions.

%% the original definition for the project record, defined for an
%% old version of our application
-record(project, {
    version = 1,
    name :: binary()

andytill

DbgFun = fun({trace_ts, _, _event, MFA, Msg, TS}, _Acc) -> 
	io:format("XXXXXXXXXXXXXXXXXXXXXXXX ~p : ~p~n~s~n", [MFA, TS, Msg]) end.
dbg:tracer(process, {DbgFun, ok}).
dbg:tp({io,format,1}, [{'_', [], [{message,{process_dump}}, {exception_trace}]}]).
dbg:p(all,[c, timestamp]).

io:format("hi").

andytill

sudo apt-get install  libssl0.9.8 libcanberra-gtk0 libcanberra-gtk-module

andytill

make quickbuild && ./riak_test -c rtdev `sh -c 'for i in tests/ts_*; do echo -t $i; done'`

andytill

make -C test LEGACY=
make[1]: Entering directory `/home/vagrant/work/erlang.mk/test'
build: Generate a bleeding edge Erlang.mk
core-app-asn1: Bootstrap a new OTP library named core_app_asn1
core-app-asn1: Download .asn1 files from Erlang/OTP
core-app-asn1: Generate .erl files dependent from headers generated by .asn1 files
core-app-asn1: Generate an unrelated .hrl file
core-app-asn1: Build the application
core-app-asn1: Check that all compiled files exist
core-app-asn1: Check that the application was compiled correctly

andytill

## start_cluster.sh

for node in {1..3}; do dev/dev$node/bin/riak start; done

## cluster_up.sh (clusters the individualnodes)


for node in {2..3}; do dev/dev$node/bin/riak-admin cluster join 'dev1@127.0.0.1'; done

andytill

%% ---------------------------------------------------------------------
%%
%% Copyright (c) 2015 Kota UENISHI.  All Rights Reserved.
%%
%% This file is provided to you under the Apache License,
%% Version 2.0 (the "License"); you may not use this file
%% except in compliance with the License.  You may obtain
%% a copy of the License at
%%
%%   http://www.apache.org/licenses/LICENSE-2.0

andytill

Create bucket type with the table_def property.

export TAB=GeoCheckin; dev/dev1/bin/riak-admin bucket-type create $TAB "{\"props\":{ \"table_def\": \"CREATE TABLE GeoCheckin (geohash varchar not null, user varchar not null, time timestamp not null, weather varchar not null, temperature varchar, PRIMARY KEY((quantum(time, 15, s)), time, user))\"}}"

Activate it:

dev/dev1/bin/riak-admin bucket-type activate $TAB

andytill

%%% MACRO

-define(in_process(TestCode),
    Self = self(),
    spawn_link(
        fun() ->
            TestCode,
            Self ! test_ok
        end),
    receive

andytill

processing_in_pools options:
    ?ITERATIONS: 10000
    ?KV_SIZE: 500
    ?PRE_SIZED_HEAP: 4400
    scheduler_bind_type: no_node_thread_spread
    schedulers_online: 4
processing_in_pools:temporary_workers in 10.226417s
processing_in_pools:temporary_workers_with_pre_sized_heaps in 10.378222s