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Tomcat: Too many open files

the symptom

If tomcat just respondes with HTTP 500 and you find something like

org.apache.tomcat.jni.Error: Too many open files
       at org.apache.tomcat.jni.Socket.accept(Native Method)
       at org.apache.tomcat.util.net.AprEndpoint$Acceptor...


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Chef: Cook your own automated environment

There is a new kid on the configuration management block Chef from Opscode. Here is a blog post about Puppet vs. Chef.

Chef is kind of Puppet with integrated iClassify and a rubyish configuration DSL. No wonder, Adam Jacob joined forces on Chef.

You...


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Setting up an SSL secured Webserver with CentOS

Here is a very good HOWTO for setting up an SSL secured Webserver with CentOS

ensure there is no ssl.conf for the default VirtualServer in /etc/httpd/conf.d/ or incorporate your changes there.


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Use EBS on EC2 Centos 5.2 and snapshot with cron to S3

Create the volume and assign it to your instance

Attach it to your Centos 5.2 instance

yum install xfsprogs

according to Thread: Debian Lenny and XFS causes kernel panic: Suggested Workaround

mkfs.xfs -l version=1 /dev/sdh

insert into /etc/fstab

/dev...


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Interested in Cloud or Chef Trainings? Have a look at our Commandemy Trainings page. Need help migrating to the cloud? Check out Infralovers.

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