New contract, new machine.....and the Internet Explorer F12 debug tools don't work for me.
This fixed it:
Run gpedit.msc
In the left pane, click on to expand Computer Configuration, Administrative Templates, Windows Components, Internet Explorer, and Toolbars.
In the right pane, double click on Turn off Developer Tools
Select Disabled
Arg, how I hate IE.
Thursday, April 26, 2012
Wednesday, April 25, 2012
Help Internet Explorer suck less by removing compat mode
The compatibility mode in IE has it's uses, but can cause nightmares when clients are testing.
To remove it as an option add the following as teh first line after the <head> tag in your mark up:
<meta http-equiv="X-UA-Compatible" content="IE=Edge" />
More info:
http://blogs.msdn.com/b/askie/archive/2009/03/23/understanding-compatibility-modes-in-internet-explorer-8.aspx
http://stackoverflow.com/questions/3960120/turn-off-ie-8-compatibility-mode-for-site
To remove it as an option add the following as teh first line after the <head> tag in your mark up:
<meta http-equiv="X-UA-Compatible" content="IE=Edge" />
More info:
http://blogs.msdn.com/b/askie/archive/2009/03/23/understanding-compatibility-modes-in-internet-explorer-8.aspx
http://stackoverflow.com/questions/3960120/turn-off-ie-8-compatibility-mode-for-site
Saturday, April 21, 2012
SQL 2005/2008 Median function
This is this simplest SQL 2005/2008 Median function I've come across:
SELECT
(
(SELECT MAX(MyColumn) FROM
(SELECT TOP 50 PERCENT MyColumn FROM MyTable ORDER BY MyColumn) AS BottomHalf)
+
(SELECT MIN(MyColumn) FROM
(SELECT TOP 50 PERCENT MyColumn FROM MyTable ORDER BY MyColumn DESC) AS TopHalf)
) / 2 AS Median
Thanks Jeff Atwood!
http://stackoverflow.com/questions/1342898/function-to-calculate-median-in-sql-server
SELECT
(
(SELECT MAX(MyColumn) FROM
(SELECT TOP 50 PERCENT MyColumn FROM MyTable ORDER BY MyColumn) AS BottomHalf)
+
(SELECT MIN(MyColumn) FROM
(SELECT TOP 50 PERCENT MyColumn FROM MyTable ORDER BY MyColumn DESC) AS TopHalf)
) / 2 AS Median
Thanks Jeff Atwood!
http://stackoverflow.com/questions/1342898/function-to-calculate-median-in-sql-server
Friday, April 6, 2012
Installing Cloudera Hadoop 0.20 and Mahout on Ubuntu 11
Notes for installing Cloudera Hadoop 0.20 and Mahout on Ubuntu 11.10
April 2012
UPDATE SEPT 2014 - ok this is very old now. A better way is to just use the Cloudera CDH installer!
# wget http://archive.cloudera.com/cm5/installer/latest/cloudera-manager-installer.bin
# chmod u+x cloudera-manager-installer.bin
# sudo ./cloudera-manager-installer.bin
Then follow the local installer steps before navigating to the web installer when prompted.
Original April 2012 Instructions:
0. Ubuntu
Fresh install of Ubuntu ubuntu-11.10-desktop-amd64.iso on VirualBox with all updates and Guest Addons
Also mount a shared folder created in VirtualBox:
$ sudo mount -t vboxsf _Shared ~/_Shared
or add this line (without sudo) to /etc/rc.local
1. Java and ssh prerequisites:
http://cloudblog.8kmiles.com/2011/12/02/hadoop-prerequisite-for-hadoop-setup-in-ubuntu/
http://softwareinabottle.wordpress.com/2011/11/17/install-sun-jdk-6-on-ubuntu-11-10/
2. Update Java env by adding the following to: /etc/bash.bashrc
http://blog.sanaulla.info/2009/04/02/installing-jdk-setting-java_home-in-ubuntu/
JAVA_HOME=/usr/lib/jvm/java-6-sun
export JAVA_HOME
PATH=$PATH:$JAVA_HOME/bin:
export PATH
CLASSPATH=$JAVA_HOME/lib/:.
export CLASSPATH
3. CDH3 install hadoop core:
http://cloudblog.8kmiles.com/2011/12/06/hadoop-cdh3-setup-in-ubuntu/
3.1 create cloudera.list:
$ sudo pico /etc/apt/sources.list.d/cloudera.list
with content:
deb http://archive.cloudera.com/debian maverick-cdh3 contrib
deb-src http://archive.cloudera.com/debian maverick-cdh3 contrib
$ curl -s http://archive.cloudera.com/debian/archive.key | sudo apt-key add -
$ sudo apt-get update
$ sudo apt-get install hadoop-0.20
$ hadoop version
4. CDH3 install daemons for Pseudo Distributed Mode:
http://cloudblog.8kmiles.com/2011/12/07/hadoop-cdh3-pseudo-distributed-mode-setup/
to set up Standalone mode see: http://cloudblog.8kmiles.com/2011/12/07/hadoop-cdh3-standalone-mode-setup/
$ sudo apt-get install hadoop-0.20-namenode
$ sudo apt-get install hadoop-0.20-secondarynamenode
$ sudo apt-get install hadoop-0.20-jobtracker
$ sudo apt-get install hadoop-0.20-datanode
$ sudo apt-get install hadoop-0.20-tasktracker
$ sudo apt-get install hadoop-0.20-conf-pseudo
$ sudo alternatives --display hadoop-0.20-conf
5. Test the daemons:
for service in /etc/init.d/hadoop-0.20-*; do sudo $service start; done
sudo jps
hadoop jar /usr/lib/hadoop/hadoop-*-examples.jar pi 2 100000
Navigate to: http://localhost:50070/ for Namenode details
Navigate to: http://localhost:50030/ for Job details
for service in /etc/init.d/hadoop-0.20-*; do sudo $service stop; done
6. Install mahout:
http://cloudblog.8kmiles.com/2012/02/16/cdh3-mahout-setup/
$ sudo apt-get install mahout
7. Install Hue interface:
https://ccp.cloudera.com/display/CDHDOC/Hue+Installation#HueInstallation-Installing%2CConfiguring%2CandStartingHueonOneMachine
$ sudo apt-get install hue
Open the /etc/hue/hue.ini configuration file and add:
[desktop]
secret_key=jFE93j;2[280-eiw.tyXrN2s3['d:/.q[eI^^y#e=+Iei*@Mn<qW5o
$ for service in /etc/init.d/hadoop-0.20-*; do sudo $service start; done
sudo /etc/init.d/hue start
Navigate to: http://localhost:8088/ for Hue
I hope these notes and links help someone out. Please leave a comment if you have have any problems or additions.
April 2012
UPDATE SEPT 2014 - ok this is very old now. A better way is to just use the Cloudera CDH installer!
# wget http://archive.cloudera.com/cm5/installer/latest/cloudera-manager-installer.bin
# chmod u+x cloudera-manager-installer.bin
# sudo ./cloudera-manager-installer.bin
Then follow the local installer steps before navigating to the web installer when prompted.
Original April 2012 Instructions:
0. Ubuntu
Fresh install of Ubuntu ubuntu-11.10-desktop-amd64.iso on VirualBox with all updates and Guest Addons
Also mount a shared folder created in VirtualBox:
$ sudo mount -t vboxsf _Shared ~/_Shared
or add this line (without sudo) to /etc/rc.local
http://cloudblog.8kmiles.com/2011/12/02/hadoop-prerequisite-for-hadoop-setup-in-ubuntu/
http://softwareinabottle.wordpress.com/2011/11/17/install-sun-jdk-6-on-ubuntu-11-10/
2. Update Java env by adding the following to: /etc/bash.bashrc
http://blog.sanaulla.info/2009/04/02/installing-jdk-setting-java_home-in-ubuntu/
JAVA_HOME=/usr/lib/jvm/java-6-sun
export JAVA_HOME
PATH=$PATH:$JAVA_HOME/bin:
export PATH
CLASSPATH=$JAVA_HOME/lib/:.
export CLASSPATH
3. CDH3 install hadoop core:
http://cloudblog.8kmiles.com/2011/12/06/hadoop-cdh3-setup-in-ubuntu/
3.1 create cloudera.list:
$ sudo pico /etc/apt/sources.list.d/cloudera.list
with content:
deb http://archive.cloudera.com/debian maverick-cdh3 contrib
deb-src http://archive.cloudera.com/debian maverick-cdh3 contrib
$ curl -s http://archive.cloudera.com/debian/archive.key | sudo apt-key add -
$ sudo apt-get update
$ sudo apt-get install hadoop-0.20
$ hadoop version
4. CDH3 install daemons for Pseudo Distributed Mode:
http://cloudblog.8kmiles.com/2011/12/07/hadoop-cdh3-pseudo-distributed-mode-setup/
to set up Standalone mode see: http://cloudblog.8kmiles.com/2011/12/07/hadoop-cdh3-standalone-mode-setup/
$ sudo apt-get install hadoop-0.20-namenode
$ sudo apt-get install hadoop-0.20-secondarynamenode
$ sudo apt-get install hadoop-0.20-jobtracker
$ sudo apt-get install hadoop-0.20-datanode
$ sudo apt-get install hadoop-0.20-tasktracker
$ sudo apt-get install hadoop-0.20-conf-pseudo
$ sudo alternatives --display hadoop-0.20-conf
5. Test the daemons:
for service in /etc/init.d/hadoop-0.20-*; do sudo $service start; done
sudo jps
hadoop jar /usr/lib/hadoop/hadoop-*-examples.jar pi 2 100000
Navigate to: http://localhost:50070/ for Namenode details
Navigate to: http://localhost:50030/ for Job details
for service in /etc/init.d/hadoop-0.20-*; do sudo $service stop; done
6. Install mahout:
http://cloudblog.8kmiles.com/2012/02/16/cdh3-mahout-setup/
$ sudo apt-get install mahout
7. Install Hue interface:
https://ccp.cloudera.com/display/CDHDOC/Hue+Installation#HueInstallation-Installing%2CConfiguring%2CandStartingHueonOneMachine
$ sudo apt-get install hue
Open the /etc/hue/hue.ini configuration file and add:
[desktop]
secret_key=jFE93j;2[280-eiw.tyXrN2s3['d:/.q[eI^^y#e=+Iei*@Mn<qW5o
$ for service in /etc/init.d/hadoop-0.20-*; do sudo $service start; done
sudo /etc/init.d/hue start
Navigate to: http://localhost:8088/ for Hue
I hope these notes and links help someone out. Please leave a comment if you have have any problems or additions.
Saturday, March 24, 2012
Adding external libs to an Eclipse Galileo project
In eclipse Galileo :
Open the project's properties
Select Java Build Path
Select Libraries tab
From there you can Add External Jars
http://stackoverflow.com/questions/179024/adding-a-jar-to-an-eclipse-java-library
Also, when importing java source files into the project, the root import folder chosen must match the package structure.
Thursday, March 22, 2012
Get object dependencies in SQL Server
Get object dependencies of a sproc via script instead of Management Studio:
DECLARE @my_object nvarchar(1024) = N'dbo.my_sproc'
CREATE TABLE #tempTable (name nvarchar(1024), [type] nvarchar(1024), updated nvarchar(1024), selected nvarchar(1024), [column] nvarchar(1024))
INSERT INTO #tempTable EXEC sp_depends @objname = @my_object
SELECT name FROM #tempTable group by name
DROP TABLE #tempTable
GO
Also useful:
SELECT * FROM sys.Tables
http://blog.sqlauthority.com/2009/09/23/sql-server-insert-values-of-stored-procedure-in-table-use-table-valued-function/
Tuesday, March 6, 2012
Increasing heap for Weka
Any OS
From command/terminal:
java -Xmx1024m -jar weka.jar
OSX gui
From terminal:
cd /Applications/weka-3-5-7.app/Contents
open Info.plist
Under "Java" you will find an entry called "VMOptions" with the value "-Xmx256M".
Windows gui
Edit the line maxheap=1536m from C:\Program Files\Weka-3-X\RunWeka.ini
From command/terminal:
java -Xmx1024m -jar weka.jar
OSX gui
From terminal:
cd /Applications/weka-3-5-7.app/Contents
open Info.plist
Under "Java" you will find an entry called "VMOptions" with the value "-Xmx256M".
Windows gui
Edit the line maxheap=1536m from C:\Program Files\Weka-3-X\RunWeka.ini
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