timbunce

logstash queries graphed with graphite.

Operation: Decouple whisper from graphite.

Method: Create a graphite function that does a date histogram facet query against elasticsearch for a given query string for the time period viewed in the current graph.

Reason: graphite has some awesome math functions. Wouldn't it be cool if we could use those on logstash results?

The screenshot below is using logstash to watch the twitter stream of keywords "iphone" "apple" and "samsung" - then I graph them each, so we get an idea of popularity. As a bonus, I also do a movingAverage() on the iphone curve to show you why this is awesome.

timbunce

This works as expected:

corp=> SELECT ST_AsText(ST_GeomFromGeoJSON('{"type":"Point","coordinates":[-48.23456,20.12345]}')) As wkt;
            wkt
---------------------------
 POINT(-48.23456 20.12345)

but this doesn't:

corp=> SELECT ST_AsText(ST_GeomFromGeoJSON('{"type":"Point","coordinates":["-48.23456","20.12345"]}')) As wkt;

timbunce

use strict;
use Data::Dumper;

my @hosts = (
    '74.125.24.101:80',     # google
    '74.125.24.101:9999',   # google but bad port
    '17.172.224.47:80',     # apple
    '117.53.170.202:80',    # www.gov.au
);

timbunce

600c00020180 /usr/local/perl5-blead-deb-thr-asan/lib/5.17.11/blib.pm
600c00020360 /usr/local/perl5-blead-deb-thr-asan/lib/5.17.11/blib.pm
600c000204e0 /usr/local/perl5-blead-deb-thr-asan/lib/5.17.11/blib.pm
600c00020540 /usr/local/perl5-blead-deb-thr-asan/lib/5.17.11/blib.pm
600c000205a0 /usr/local/perl5-blead-deb-thr-asan/lib/5.17.11/blib.pm
600c00020480 /usr/local/perl5-blead-deb-thr-asan/lib/5.17.11/blib.pm
600c00020600 /usr/local/perl5-blead-deb-thr-asan/lib/5.17.11/blib.pm
600c000206c0 /usr/local/perl5-blead-deb-thr-asan/lib/5.17.11/blib.pm
600c00020780 /usr/local/perl5-blead-deb-thr-asan/lib/5.17.11/blib.pm
600c00020300 /usr/local/perl5-blead-deb-thr-asan/lib/5.17.11/blib.pm

timbunce

600c00020180 /usr/local/perl5-blead-deb-thr-asan/lib/5.17.11/blib.pm
600c00020360 /usr/local/perl5-blead-deb-thr-asan/lib/5.17.11/blib.pm
600c000204e0 /usr/local/perl5-blead-deb-thr-asan/lib/5.17.11/blib.pm
600c00020540 /usr/local/perl5-blead-deb-thr-asan/lib/5.17.11/blib.pm
600c000205a0 /usr/local/perl5-blead-deb-thr-asan/lib/5.17.11/blib.pm
600c00020480 /usr/local/perl5-blead-deb-thr-asan/lib/5.17.11/blib.pm
600c00020600 /usr/local/perl5-blead-deb-thr-asan/lib/5.17.11/blib.pm
600c000206c0 /usr/local/perl5-blead-deb-thr-asan/lib/5.17.11/blib.pm
600c00020780 /usr/local/perl5-blead-deb-thr-asan/lib/5.17.11/blib.pm
600c00020300 /usr/local/perl5-blead-deb-thr-asan/lib/5.17.11/blib.pm

timbunce

Locate the section for your github remote in the .git/config file. It looks like this:

[remote "origin"]
	fetch = +refs/heads/*:refs/remotes/origin/*
	url = git@github.com:joyent/node.git

Now add the line fetch = +refs/pull/*/head:refs/remotes/origin/pr/* to this section. Obviously, change the github url to match your project's URL. It ends up looking like this:

timbunce

@xyz»++                # increment all elements of @xyz

@x = @a »min« @b       # @x is smallest of @a and @b

$mean = ([+] @a) / @a           # calculate mean of @a

$sumsq = [+] (@x »**» 2)        # sum of squares of @x

$fact = [*] 1..$n               # $n factorial

timbunce

mpz synopsis

mpz is a ZeroMQ-based pipe.

It will read stuff from STDIN and output to ZeroMQ sockets, and read from ZeroMQ sockets and send to STDOUT.

Messages are terminated by newlines, or pairs of newlines in paragraph mode.

Supports 1-to-1, 1-to-N and N-to-1. There is a special mode to start as

timbunce

role R {
    method m() { say 42 }
}
    
class C does R {
}
    
my $x = C.new;
log-calls($x, R);
    

timbunce

role R {
    method m() { say 42 }
}

class C does R {
}
    
my $x = C.new;
log-calls($x, R);