0
votes
0answers
163 views

nagios volatile service and system time change warning

I have a nagios service with volatile option on (executes event handler every time it encounters a non-ok hard state). Problem is that if the event handler executes for 2-3 times (that is the expected ...
1
vote
1answer
102 views

How can I configure a Xen image to run on EC2 with different drive names?

I'm in the process of creating a number of Amazon Machine Images (AMIs) that will be uploaded and run on the basis of our Xen images. However, I'm running into problems with some platforms where the ...
1
vote
1answer
259 views

Disabling Host-to-Guest time sync in EC2 windows

In an EC2 instance (Xen Virtualized) is it possible to disable time sync on a Guest VM by Host VM. I found that it can be done on Linux instance by modifying xen.independent_wallclock=1 Is there any ...
0
votes
3answers
897 views

VNC connection to EC2 instance without installing a VNC server

I was wondering if it was possible to connect to an Amazon ec2 instance via VNC, but instead of installing a VNC server in the target machine, somehow connect it to the hypervisor's graphics output ...
3
votes
2answers
176 views

What is a good way to develop images or templates that can be used on Xen, KVM and EC2?

I want to make images to do simple network services (e.g. serve a web app, run a memcached, or whatever). It would be really nice to develop an image once, test locally, and then be able to deploy it ...
3
votes
2answers
5k views

xvda1 is 100% full, What is it? how to fix?

I'm running a Linux instance on EC2 (I have MongoDB and node.js installed) and I'm getting this error: Cannot write: No space left on device I think I've tracked it down to this file, here is the ...
-1
votes
1answer
2k views

Anybody can tell me why isn't my EC2 AMI booting?

I'm trying to make my own EC2 AMI. I used debootstrap to install the packages onto a partition, copied the kernel modules from the running AMI (Amazon linux) and rebooted. This is what the console ...
73
votes
4answers
12k views

Why is TCP accept() performance so bad under Xen?

The rate at which my server can accept() new incoming TCP connections is really bad under Xen. The same test on bare metal hardware shows 3-5x speed ups. How come this is so bad under Xen? Can you ...
2
votes
2answers
314 views

How to make an ec2 ami work on Xen on Debian

We are creating a cloud app and have Debian on which we create a customized image and upload it to the Amazon EC2. After uploading it to the cloud we made some more customizations and are trying to ...
4
votes
2answers
2k views

Convert Amazon AMI to local Xen machine

I have an AMI which was created from a base AMI on Amazon. I would like to bring a copy of this internally to run for development. I have downloaded the .manifest & part00-50 files (approx 550mb) ...
3
votes
1answer
944 views

EC2 issue using PV-Grub and custom kernel: error 21 selected disk does not exist

Over on EC2 I am trying to setup AMI's for PLD-Linux that use the new features that allow running custom kernels from inside the AMI using PV-Grub. I've setup custom AMI's many times before but can't ...
0
votes
1answer
339 views

High %idle on EC2 instances despite high load

I like to fully-load our compute hardware to reduce wasted CPU time, and on typical in-house hardware this is fairly easy: load the machine with as many runnable threads as there are cores, and idle ...
3
votes
3answers
331 views

How can I generate filesystem images that are usable on many different virtualization systems?

I have written a script that generates a root filesystem image (based on Debian lenny) suitable for User-Mode Linux. (Essentially this script creates a filesystem image, mounts it with a loop device, ...
3
votes
1answer
258 views

Remus on Amazon EC2: If and When?

Slashdot recently brought word that the Remus project (which implements hot-backup Xen instances) has been merged into the core Xen. Since Amazon have leveraged Xen in building out EC2, I naturally ...
3
votes
1answer
517 views

Automatically Port Xen Images to EC2

I have a disk image that is running under Xen right now and I'd like to port it to Amazon's EC2. How can I do this in a way that is as simple as possible? I've got a script that can build the finished ...