Does this project have any use/merit?
http://unxutils.sourceforge.net/
I'm not sure if all the unix utils needed for hadoop / nutch are in
there or not.
Jeff.
Tim Patton (JIRA) wrote:
[ http://issues.apache.org/jira/browse/HADOOP-33?page=comments#action_12368028 ]
Tim Patton commented on HADOOP-33:
----------------------------------
Oops, I didn't realize lines were not auto-wrapping. Sorry about that. And I
meant to say I knew my batch file doesn't have relative paths, I was just
copying and pasting to get it working.
DF enhancement: performance and win XP support
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Key: HADOOP-33
URL: http://issues.apache.org/jira/browse/HADOOP-33
Project: Hadoop
Type: Improvement
Components: fs, dfs
Environment: Unix, Cygwin, Win XP
Reporter: Konstantin Shvachko
Priority: Minor
Attachments: DF.patch, DFpatch.txt
1. DF is called twice for each heartbeat, which happens each 3 seconds.
There is a simple fix for that in the attached patch.
2. cygwin is required to run df program in windows environment.
There is a class org.apache.commons.io.FileSystemUtils, which can return disk
free space
for different OSs, but it does not have means to get disk capacity.
In general in windows there is no efficient and uniform way to calculate disk
capacity
using a shell command.
The choices are 'chkdsk' and 'defrag -a', but both of them are too slow to be
called
every 3 seconds.
WinXP and 2003 server have a new tool called fsutil, which provides all
necessary info.
I implemented a call to fsutil in case df fails, and the OS is right.
Other win versions should still run cygwin.
I tested this fetaure for linux, winXP and cygwin.
See attached patch.
