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What is the difference between Cloud, Grid and Cluster? [closed]
...s to say that a cluster is tightly coupled, whereas a Grid or a cloud is loosely coupled. Also, clusters are made up of machines with similar hardware, whereas clouds and grids are made up of machines with possibly very different hardware configurations.
To know more about cloud computing, I recomm...
ERROR: permission denied for sequence cities_id_seq using Postgres
I'm new at postgres (and at database info systems all in all). I ran following sql script on my database:
4 Answers
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How to start nginx via different port(other than 80)
...ce nginx start
You may now access your application on port 81 (for localhost, http://localhost:81).
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How to make pipes work with Runtime.exec()?
...n.readLine()) != null) {
System.out.println(line);
}
in.close();
} catch (Exception ex) {
ex.printStackTrace();
}
As to why the String array works with pipe, while a single string does not... it's one of the mysteries of the universe (especially if you haven't read the source ...
NSString tokenize in Objective-C
... As a reference to future readers, I'd like to note that the opposite is [anArray componentsJoinedByString:@":"];.
– Ivan Vučica
Feb 6 '12 at 18:12
2
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What is an SSTable?
...ped IO is a very handy technique because it delegates the actual IO to the OS, assuming it can do a good job at caching (especially when several processes share the same file). But it has the disadvantage that you don't have control of it. If the page is not resident in memory, the thread will block...
Preserve colouring after piping grep to grep
...would be
grep --color=always WORD * | grep -v AVOID
This is pretty verbose, alternatively you can just add the line
alias cgrep="grep --color=always"
to your .bashrc for example and use cgrep as the colored grep. When redefining grep you might run into trouble with scripts which rely on speci...
Error: Tablespace for table xxx exists. Please DISCARD the tablespace before IMPORT
...ere, undo logs, caches, etc...).
Anyways, I found that if you look in the OS directory where the files-per-table are stored, /var/lib/mysql by default on OSX, /usr/local/var/mysql with homebrew iirc, you'll find an orphaned tablename.ibd file without it's normal companion tablename.frm file. If yo...
How to use Active Support core extensions
...t/core_ext/object/blank'
If you don't care about granularity, you can choose to load bigger chunks. If you want everything in one big gulp use...
For 1.9.2:
rvm 1.9.2
irb -f
irb(main):001:0> require 'active_support/all'
=> true
irb(main):002:0> 1.week.ago
=> 2010-11-14 17:56:16 -0700...
Can existing virtualenv be upgraded gracefully?
...wanted to keep it in 2.5 unless I absolutely needed to do 2.6. That need arose, so I was curious if you could upgrade an isolated environment to see the effects on your code, without having to rebuild and copy/paste directories to the new env.
– Matt Norris
Feb...