How to add cron job by Chef

Thanks to Chef, I have could save my time. Because I'm responsible for over 70 servers. I installed Middleware, configured user and ssh and OS environment variables by Chef 4 months ago. It just took half a day. Thanks Chef!

As you know, the LOGs became monsters when we have been satisfied. My application dumped out 4.4GB monsters for 4 months. I need to hunt them. So I reused Chef!

Here is my Chef recipe.

	cron "remove-log" do
	minute "37"
	hour "04"
	command "sh /usr/local/app/removelog.sh"
	end

view raw gistfile1.rb hosted with ❤ by GitHub

Here is my shell hunts monsters.

	#!/bin/bash
	LOG_DIR="/usr/local/app/*/logs"
	#old log erase
	find ${LOG_DIR} -type f -name "myAllipcation*" -mtime +31 | xargs rm -f
	find ${LOG_DIR} -type f -name "gc.log*" -mtime +31 | xargs rm -f

view raw gistfile1.sh hosted with ❤ by GitHub

After run Chef client, you can confirm cron job is activated.

	[root@baepiff app]# crontab -l
	# Chef Name: as-stat-remove-log
	37 04 * * * sh /usr/local/app/removelog.sh

view raw gistfile1.txt hosted with ❤ by GitHub

If you want to configure detail level of cron, please look around the following URL.
http://wiki.opscode.com/display/chef/Resources#Resources-Cron

How to get thread dump in Tomcat

#ps -ef | grep tomcat
30012    32470     1  6 15:06 ?        00:02:29 /usr/local/java/bin/java -Djava.util.logging.config.file=/usr/local/tomcat/conf/logging.properties -server -Dcom.sun.management.jmxremote -XX:MaxPermSize=256m -XX:PermSize=256m -XX:SurvivorRatio=2 -Xmn2048m -Xmx4096m -Xms4096m -Dweblogic.corba.client.bidir=true -XX:+PrintGCDetails -Xloggc:/usr/local/tomcat/logs/gc.log.20120809-1506 -Djava.util.logging.manager=org.apache.juli.ClassLoaderLogManager -Djava.endorsed.dirs=/usr/local/tomcat/endorsed -classpath /usr/local/tomcat/bin/bootstrap.jar -Dcatalina.base=/usr/local/tomcat -Dcatalina.home=/usr/local/tomcat -Djava.io.tmpdir=/usr/local/tomcat/temp org.apache.catalina.startup.Bootstrap start

#kill -3 32470

Thread dump would be recorded on /usr/local/tomcat/logs/catalina.out
Thread dump starts with "TP-Proccesor".

error: src refspec master does not match any. error: failed to push some refs to 'git@github.com:.git'

If you are a github newbie as like me, it will help you.
Here is what I got message from git after I made new repository.

error: src refspec master does not match any.
error: failed to push some refs to 'git@github ... .git'

I googled and found this solution. It works for me.

$ touch README
$ git add README
$ git add *
$ git commit -m 'my first commit'
$ git push origin master --force