Resource shortage – OpenVZ Wiki

How to change quota’s in an openvz ve:

In the root node :

vzctl set NODE_NUMBER –diskspace hard:soft –save

example:

vzctl set 101 –diskinodes 220000:220000 –save

See:

http://wiki.openvz.org/Resource_shortage

replacing with newlines in emacs

Wow, learned how to do something in emacs that I’ve wanted to do for probably 10 years now.

Replace text with newlines. Here’s how:

when in replace mode, press control-q control-j to insert the newline.

I used replace:

<pre>
on><op></op></pre>

with

<pre>
on>control-q control-j<op></op></pre>

it to fix this ugly html:

<pre>
linux rockslinux rocks the casbahlinux is rad
</pre>

with this:

<blockquote><pre>
linux rocks
linux rocks the casbah
linux is rad
</pre></blockquote>

Of course in real life I had about 50 options I would have had to edit by hand to make it all pretty.

Thanks to http://www.cs.umd.edu/~jspacco/emacs.html

converting an entire mysql server to not use isam files

So you’ve got a mysql server with an unknown number of isam tables and you need to convert them (the easy way)? Here’s how:

find /var/lib/mysql/ -name “*.ISM” -print > convert.txt

emacs convert.txt

replace: “/var/lib/mysql/” with “alter table “

replace “.ISM” with ” type = myisam;”

replace “/” with “.”

Be careful to include the spaces where I have them.

The run:

mysql -u root -p < convert.txt

Want to make your mysql 5.x server super duper slow?

Do you want to make your mysql 5.x server super duper slow? Want to anger all your users and loose clients? Of course you do!

No problem, chmod 0 any database dir. Now run “show databases”, slow isn’t it?

As far as I can tell mysql 4.o.x doesn’t do this (don’t run any 4.1.x to test those). Sometimes when I needed to quickly disable a problem database I’d chmod 0 the database dir. Never had a problem in the past but it is killing a recent 5.x install.