videlalvaro

./scripts/rabbitmqctl  -n rabbit-test list_bindings
Listing bindings ...
	exchange	amq.gen-vo8P7HfEXThPMNCo3PRtjQ==	queue	amq.gen-vo8P7HfEXThPMNCo3PRtjQ==	[]
amq.direct	exchange	amq.gen-vo8P7HfEXThPMNCo3PRtjQ==	queue		[]
amq.fanout	exchange	amq.gen-vo8P7HfEXThPMNCo3PRtjQ==	queue		[]
...done.

videlalvaro

mrhyde:redis mrhyde$ sudo dtrace -s utils/dtrace/commands.d -p `pgrep redis`
dtrace: script 'utils/dtrace/commands.d' matched 2 probes
dtrace: pid 27958 has exited

  ping                                                           4508
  select                                                         7518
  getbit                                                         7923
  setbit                                                         8030
  getrange                                                       8227
  strlen                                                         8401

videlalvaro

erlang$target:::function-entry
/copyinstr(arg1) == "rabbit_exchange_type_direct:route/2"/
{
    printf("%s %s", probemod, probefunc);
    self->traceIt = 1;
}

erlang$target:::function-entry
/self->traceIt/
{

videlalvaro

#!/usr/bin/env escript
%% -*- erlang -*-
%%! -sname nodefinder

%% Usage:
%% chmod +x nodes.erl
%% ./nodes.erl 'somenode@host'

main([N]) ->
    Node = list_to_atom(N),

videlalvaro

f(N, N) -> do_something_when_equal;
f(X, N) -> do_something_when_diff.

f(1,10). %% calls the second one.
f(10, 10). %% calls the first one.

videlalvaro

mrhyde:basho mrhyde$ git clone git://github.com/basho/riak.git
Cloning into riak...
remote: Counting objects: 10941, done.
remote: Compressing objects: 100% (3362/3362), done.
remote: Total 10941 (delta 7292), reused 10887 (delta 7254)
Receiving objects: 100% (10941/10941), 8.94 MiB | 661 KiB/s, done.
Resolving deltas: 100% (7292/7292), done.
mrhyde:basho mrhyde$ cd riak/
mrhyde:riak mrhyde$ make rel
./rebar get-deps

videlalvaro

mrhyde:erlzmq2 mrhyde$ make
Cloning into deps/zeromq2...
remote: Counting objects: 8639, done.
remote: Compressing objects: 100% (2386/2386), done.
remote: Total 8639 (delta 6424), reused 8040 (delta 6039)
Receiving objects: 100% (8639/8639), 8.50 MiB | 661 KiB/s, done.
Resolving deltas: 100% (6424/6424), done.
v2.1.7
Note: checking out 'v2.1.7'.

videlalvaro

mrhyde:c mrhyde$ tar -xzvf zeromq-2.1.7.tar.gz 
x zeromq-2.1.7/
x zeromq-2.1.7/autogen.sh
x zeromq-2.1.7/COPYING.LESSER
x zeromq-2.1.7/tests/
x zeromq-2.1.7/tests/test_reqrep_inproc.cpp
x zeromq-2.1.7/tests/testutil.hpp
x zeromq-2.1.7/tests/test_reqrep_tcp.cpp
x zeromq-2.1.7/tests/test_pair_inproc.cpp
x zeromq-2.1.7/tests/Makefile.am

videlalvaro

#!/bin/bash
CAT="/bin/cat"
HOSTNAME=$(/bin/hostname)
RABBITMQ_HOME="/var/lib/rabbitmq"
RABBITMQ_COOKIE_PATH="$RABBITMQ_HOME/.erlang.cookie"
RABBITMQ_COOKIE=$($CAT $RABBITMQ_COOKIE_PATH) || exit 1
ERLANG_ROOT="/usr/local/erlang"
ERL_CALL="$ERLANG_ROOT/lib/erlang/lib/erl_interface-3.6.5/bin/erl_call"
PROCS=$($ERL_CALL -c $RABBITMQ_COOKIE  -sname rabbit@$HOSTNAME -a 'erlang system_info [process_count]')
echo "procs.$HOSTNAME $PROCS"

videlalvaro

#!/bin/sh

# Usage:
# Take 1 picture every second, during one hour
# ./slacking 3600 1
# 

N=0
PICS_PATH="/path/to/pics/destination"