stairs_jumper

Wow:) As guys pointed out, using sort -R is not random - it sorts on hash value. 

Geeky version
1. http://virtualboxes.org/images/ubuntu/
1.b. Create a user with the name matching the one from your host machine
2. http://hadoop.apache.org/docs/r1.0.4/single_node_setup.html

Detailed version
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  Sometimes we need to add a bit more capacity to an existing FS by plugging in an additional storage unit. At first I thought this won't be of much use, my world of VMs and abstractions benefits from the thing from time to time.

  As LVM adds 3 abstraction layers, we're now given a greater flexibility: a single device may be shared across a number of file systems, as well as a number of them may share a single device.

So how we usually perform that:

• Check additional device is visible
  
  
  
  
  
  

  fdisk -l

  
  
  
  

  Disk /dev/sda: 8589 MB, 8589934592 bytes
  255 heads, 63 sectors/track, 1044 cylinders
  Units = cylinders of 16065 * 512 = 8225280 bytes
  
     Device Boot      Start         End      Blocks   Id  System
  /dev/sda1   *           1          13      104391   83  Linux
  /dev/sda2              14        1044     8281507+  8e  Linux LVM
  
  Disk /dev/sdX: 1099.5 GB, 1099511627776 bytes
  255 heads, 63 sectors/track, 133674 cylinders
  Units = cylinders of 16065 * 512 = 8225280 bytes
  
  

  
  


• Trigger scan if you don't see a device
  

  echo "- - -" > /sys/class/scsi_host/host0/scan
  
  

  
  


• Enter a named screen session(and storage changes) to make the session survive network outages:
  

  screen -R lvm
  
  

  
  


• Create LVM physical volume
  
  
  
  
  
  

  pvcreate /dev/sdbX

  
  
  
  
  

  Physical volume "/dev/sdX" successfully created

  
  


• Make that space available to volume group your interested in
  
  
  
  
  
  
  
  
  
  
  

  vgextend VolGroup00 /dev/sdX

  
  
  
  
  

  Volume group "VolGroup00" successfully extended

  
  


• Extend LVM volume
  
  
  
  
  
  

  lvextend -L 1000GB /dev/VolGroup00/LogVol00

  
  
  
  
  

  Extending logical volume LogVol00 to 1000.00 GB
  Logical volume LogVol00 successfully resized

  
  


• Online FS resize(may take a while)
  
  
  
  
  
  

  resize2fs /dev/VolGroup00/LogVol00

  
  
  
  
  

  Filesystem at /dev/VolGroup00/LogVol00 is mounted on /; on-line resizing required
  Performing an on-line resize of /dev/VolGroup00/LogVol00 to 262144000 (4k) blocks.
  

  
  


• Profit!

  Always hated starting each and every module, block and piece of code with endless if statements ensuring and patching data to a more or less consistent state. Well, seems that's the only way to get proper view of data in a distributed environment. I gave up :)

P.S. Ah, don't forget about idempotency.

Now I know how cool the phone without the phone app is(in my case just a blank screen). And I see lots of people on the internet asking about LG Home.apk to restore that. They recommend installs via a 10-step procedures starting from calling your phone. There is a simpler way, though:
1. Relax
2. Go to the market site and install Live Home )
3. Wait a bit and your phone will be back to usable

Chatting with functional programming evangelists is always fun - I first understood that while trying to explain to Roman hat for Dependency Injection is used. As a result, learned much about OOP sins %) One of them I would agree about now, after passage of just a single year is inheritance:

1. Ever spotted 32 lines of consecutive code lines split across 4x7 functions overriding superclass behavior with NO CLEAR ORDER?:)
2. Ever tried refactor out unnecessary aspects of a pack of tests extending a superclass with JUST EVERYTHING available?:)
3. Ever wondered around hierarchy of 12 classes with the depth of 3 trying to discover that single bit of runtime behaviour?:)

If you answered 'yes' at least once - welcome to the club :) If no - bookmark the page, soon you will ;)

And again syntactically correct constructs rob us of our spare time:)

if(noEventHappened && isSomethingRequired());
{
  aCodeThatWillRunAlways();
}

Mind the semicolon ;)

   The trick is to stick the label into the gap formed by the edge - enjoy :)

   
  Good news for everyone exposed to distributed / fault tolerant nature of programming experiences(i.e. virtually everyone). Now principles distilled by the Release It! re cooked as a neat Java lib.
  Obvsiously dropping that on to your classpass won't fix the things magically:) Though I believe, even reading about the thing may be highly beneficial. Enjoy.