We tried it: Bullitt (with BionX electric assist)

Originally posted on Hum of the city:

Hello, Bullitt!

While we were in Portland, we rented bikes from Splendid Cycles for the week. They knew the geography of San Francisco, and their suggestions were that we try riding a BionX-assisted Big Dummy and a BionX-assisted Bullitt. The Big Dummy was an obvious choice, beloved of hilly-city families up and down the west coast, but the Bullitt was a dark horse if there ever was one. The Bullitt is a serious cargo bike, the choice of San Francisco bike couriers, and it can carry a lot of weight. (Here is a great review by Josh Volk of Slow Hand Farms, whom we later met, and another from Wisconsin, and another from a dad in New Zealand.) However both a quick once-over and a detailed review by Totcycle made it clear that the standard Bullitt setup is so narrow that carrying two older kids at once in its box…

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This is not the nastiest perl I’ve ever done…but dang.

This is a stanza where, given a comma separated list of keywords to match on, find the values after the colon. The values could be empty and at the end of a line. I would be delighted to find an even simpler way to do this.

   my $matcher       = " (".join('|', keys %option_map)."):";
   my @matches       = grep( /$matcher/, @lines);
   for my $match (@matches) {
      my @parts      = ($match =~ m/( *[^ ]+):( \S+ [^ #]*)(?! #|\S+:)/g);
      for (my $i=0; $i < @parts; $i+=2) {
         $option     = $parts[$i];
         $option     =~ s/^\s*(.*)\s*$/$1/;
         if ( defined $option_map{ $option } ) {
            my $value = $parts[ $i + 1 ];
            $value   =~ s/^\s*(.*)\s*$/$1/;
            $option_map{ $option } = $value;
         }
      }
   }

And that’s pretty darned terse for that solution.

Resilvering: Just what I want to see

I love replacing failed hard drives. Mostly, because I hate having hard drive failures.

root@cholla ~
$ zpool attach -f tank ata-ST2000DM001-9YN164_W1E16BJB ata-ST2000DM001-1E6164_W1E5W99Y

root@cholla ~
$ zpool status -v
pool: tank
state: ONLINE
status: One or more devices is currently being resilvered. The pool will
continue to function, possibly in a degraded state.
action: Wait for the resilver to complete.
scan: resilver in progress since Fri Feb 21 08:41:52 2014
440M scanned out of 2.19T at 55.0M/s, 11h35m to go
217M resilvered, 0.02% done
config:

NAME STATE READ WRITE CKSUM
tank ONLINE 0 0 0
mirror-0 ONLINE 0 0 0
ata-ST2000DM001-9YN164_W1E16BJB ONLINE 0 0 0
ata-ST2000DM001-1E6164_W1E5W99Y ONLINE 0 0 0 (resilvering)
mirror-1 ONLINE 0 0 0
ata-ST2000DM001-1CH164_W1E15D5G ONLINE 0 0 0
ata-ST2000DM001-1CH164_W1E16ACY ONLINE 0 0 0
logs
mirror-2 ONLINE 0 0 0
ata-OCZ-VERTEX4_OCZ-IHFPW0WRG6202CJ6-part2 ONLINE 0 0 0
ata-OCZ-VERTEX4_OCZ-8O3625YQSVR0993K-part2 ONLINE 0 0 0
cache
ata-OCZ-VERTEX4_OCZ-8O3625YQSVR0993K-part3 ONLINE 0 0 0
ata-OCZ-VERTEX4_OCZ-IHFPW0WRG6202CJ6-part3 ONLINE 0 0 0

errors: No known data errors

And there we go!

uh…remind me how to begin a perl script?

Don’t let me forget to do this at the start of my perl scripts at work:

package main;
use strict;
use warnings;
use Carp;
$SIG{ __DIE__ } = sub { Carp::confess( @_ ) };
use Scalar::Util; #::looks_like_number;
# Un-buffer output
$| = 1;
# this is pedantic necessity for the following use statements
use lib '/home/lanforge/scripts';
use LANforge::Endpoint;
use LANforge::Port;
use LANforge::Utils;
use Net::Telnet ();
use Getopt::Long;
use Socket;
use POSIX;

PH7 Engine – is it really the fix?

This sounds very useful, especially if you consider that PHP is used in embedded environments like MonoWall and pfSense.

My big question for larger installation is this: xcache already does a great job at bytecode caching. The largest slowdown in the majority of PHP applications is the relational engine sitting underneath it. After much profiling of previous applications, I have always found the biggest benefits to application performance in taking a casual schema to a rigorous level. And if that is not fast enough, then you throw in some memcached to the mix.

PH7 Engine.