Women in Technology

Article:		Distributed Tiger: Xgrid Comes of Age
Subject:		Broken example
Date:		2005-08-24 11:44:45
From:		IslandDan
It would be nice if this worked but it doesn't. Probsably the author has some thiongs setup that a stock instsall of 10.4.2 doesn't. Or perhaps Apple just doesn't have it together yet. The second command fails: xgrid -grid list just printing it's help. Sad.

Showing messages 1 through 4 of 4.

• Broken example
  2005-08-25 00:42:40  cparnot [View]
  
  
  you have to have a controller (xgrid server) running, and have the environment variable mentioned in the text set, or use the '-h' flag, for instance:
  
  xgrid -h localhost -grid list

(assuming there is no password set and the server is run on the machine you are logged in)
• Broken example
  2005-08-25 00:50:16  drewmccormack [View]
  
  
  Yes, thanks Charles. It seems I may have unwittingly had environment variables set without realizing it.
  
  As Charles points out, probably the easiest thing to do is add the -h option to your xgrid commands.
  
  Drew
• Broken example
  2005-08-27 11:11:44  jfconway [View]
  
  
  First - thanks for the Xgrid walk-through. It does perhaps need some amendments, however, and even amendments to the amendments! I couldn't get the example to work until I added the -password option, so the working command becomes:
  
  xgrid -hostname localhost -password <whatever> -grid list
  
  I feel that I am making progress and I thank you again for the article that got me started.
• Broken example
  2005-08-27 11:30:15  drewmccormack [View]
  
  
  Just to elaborate on this: the reason the article doesn't include the -hostname and -password options is that when I was writing the article, I unwittingly set a couple of environment variables, and forgot to unset them. The environment variables are:
  XGRID_CONTROLLER_PASSWORD and XGRID_CONTROLLER_HOSTNAME. If you set these, you do not need to keep using hte -hostname and -password options.
  To set them, type the following commands on the command line, or add them to your shell configuration file:
  
  
export XGRID_CONTROLLER_PASSWORD=your_password
export XGRID_CONTROLLER_HOSTNAME=your_hostname

  
  Sorry for the inconvenience. I should have checked my environment more carefully.
  
  Drew McCormack