When a video won’t play and the video file doesn’t have valid extension, you may need to tell swfobject this is a video file. provider=video
I’ve started my journey with Hadoop, and the first thing I wanted to try was Streaming, so I could run the mapper and reducer methods with PHP programs.
The first thing I did was setup an alias:
alias stream='/usr/local/hadoop/bin/hadoop jar /usr/local/hadoop/contrib/streaming/hadoop-0.18.3-streaming.jar'
I am doing a presentation on IPv6, at my company’s TechFest. This is a day event with keynote speakers, and break out sessions. The purpose of TechFest is to give the developers and engineers a break from their day to day activity and get a view of what’s going on around the company and in the industry.
In this article, I’m copy/pasting my slide deck, and stripping out the company specific information, making this a generic Introduction to IPv6.
The Agenda for Today:
What is IPv6? (~10 minutes)
DNS (~10 minutes)
Getting Started (~10 minutes)
Web Application Development (~10 Minutes)
I might get around to making a series of Chess videos. First, I set out to figure out how. I found that I can record my desktop with the free Windows Media Encoder. I used this site http://bhccvb.blogspot.com/2007/10/how-to-make-chess-videos-on-your-pc.html to learn how. The result of my first stab at this is below. I have a couple problems:
1. Microphone – I need a good one. The one I have sucks.
2. I need Fritz 11 software. I used WinBoard – which is OK, but Fritz is better.
3. Video dimensions. Winboard is rectangular, but taller than it is wide. I need to find a way to make a frame that is ideal for youtube.
Here is the video:
I’ve been playing a lot of Chess lately, on the ICC, and I just bumped into this neat utility hosted by the ICC, where I can put a little HTML into my web page, and display a chess game.
Just getting them in there, these are not original ideas, I got them from someone else, just wanted to post them on my blog for convenience sakes: * Run a query to determine the MAX ID number in the table. $MAX = SELECT COUNT(*) FROM tbl /* Use PHP to generate a random number between … Read moreSolutions to the ORDER BY RAND() problem.
I always have to look this up when I need it, so storing on my blog, so I can look it up faster. This is way faster than “scp”, for deep directories or directories with lots of files. tar cf – whatever | ssh remotehost ” ( cd /some/path ; tar xf – ) ” … Read moretar pipe ssh
This is incredible, by the way. Any time MySQL needs to use a tmp table on disk, you can make it use RAM disk instead.
WARNING: if the tmpfs partition you make isn’t big enough, MySQL will not be able to complete queries. Make sure you have enough RAM to do this.
mkdir /tmp/mysqltmp
chown mysql:mysql /tmp/mysqltmp
id mysql
# example: uid=502(mysql) gid=503(mysql) groups=503(mysql)
#to set up on server restart, put in fstab something like (replace gid, uid with number from above)
tmpfs /tmp/mysqltmp tmpfs rw,gid=503,uid=502,size=2G,nr_inodes=10k,mode=0700 0 0
mount /tmp/mysqltmp
# you don't need this:
# mount -o size=2g,gid=520,uid=518,nr_inodes=10k,mode=0700 -t tmpfs tmpfs /tmp/mysqltmp
#edit my.cnf, adding
tmpdir=/tmp/mysqltmp/
restart mysql