-1
votes
1answer
225 views

Benchmarking GlusterFS & NFS on AWS using iozone and dd gives different results

I have tried benchmarking GlusterFS vs NFS on Amazon Web Services (AWS) using a m1.medium sized EC2 instance. We use the AWS EBS as the block store, with a XFS file system. Running Ubuntu 12.04 ...
-3
votes
1answer
82 views

What are some unnecessary processes in Ubuntu 12.04? [closed]

So, I'm using Ubuntu 12.04 for my AWS instances and when I first start it up and look at the processes there seems to be a lot of things running that I'm not sure are necessarily needed for my ...
1
vote
0answers
126 views

HPC / EC2 - optimizing NFS for relialibility

In AWS-EC2, I've set-up a cluster of linux virtual machines made of an NFS fileserver and many clients. If the number of clients is above ~20, under heavy I/O, I am experiencing loss of file ...
1
vote
1answer
241 views

Apache 2 performance reading from NFS fileserver on EC2

I'm trying to setup an environment with ELB and 4 EC2 m1.large running Apache 2 reading from another EC2 m1.small NFS v3 server. I'm using Apache Benchmark to measure the performance in requests per ...
0
votes
1answer
49 views

Running computations on a remote server using 2 possible methods. Which is ideal? [closed]

So, this is more of a general question than a specific problem. I'm using AWS and I have my main web server on an m1.medium instance but there are some computationally intensive tasks that I want to ...
2
votes
1answer
419 views

'No space left on device' on mounted NFS device

On NFS Server: Filesystem 1K-blocks Used Available Use% Mounted on /dev/xvdf2 103212320 85090308 12879132 87% /export18 On Client Server: ...
3
votes
1answer
299 views

Using NFS for scalable PHP/MySQL web application

Here's the situation: I have a PHP/MySQL web application that accepts user uploads (pdf files). From these pdf files' pages a preview image is made on the fly and presented to the web app's users. ...
1
vote
1answer
278 views

Nginx + Wordpress permisions settings

I'm experimenting some troubles with a wordpress installation backed on nginx. The architecture is held in amazon and is the following: EC2 Nginx 1.2.4 + php-fpm Server EC2 NFS Server RDS mysql The ...
1
vote
1answer
511 views

Autoscaling EC2 with NFS mounts

I'm trying to set up a shared filesystem on EC2 and I've read tutorials such as this: http://blog.ronaldmccollam.com/2012/07/configuring-nfs-on-ubuntu-in-amazon-ec2.html In step 2 it talks about ...
1
vote
1answer
148 views

Getting 'Stale NFS file handle' when Mounting Amazon EBS Drive/Volume

I had some issues this morning with an EC2 instance so I stopped it and changed it's type and it seemed to unmount one of my drives. Now, I can't mount anything, including freshly created, attached ...
5
votes
1answer
364 views

What's the best way to share source code between EC2 instances?

Currently I have 4 EC2 instances in amazon cloud behind a load balancer and this number will grow up to 20-30. I am looking for the best way to manage source code on all of these instances. There is a ...
8
votes
1answer
1k views

NFS (with Kerberos) mount failing due to “Server not found in Kerberos database” error

When running: sudo mount -t nfs4 -o sec=krb5 sol.domain.com:/ /mnt I get this error on the client: mount.nfs4: access denied by server while mounting sol.domain.com:/ And on the server syslogs I ...
1
vote
1answer
677 views

LAMP server to AWS with HA and NFS

I am planning to use Amazon Web Service (AWS) to migrate my existing LAMP infrastructure to them. So I created a simple design of my system architecture with the following. *1 Elastic Load Balancer ...
1
vote
1answer
440 views

S3 Instead of NFS to Host H.A. Website on AWS

I've been looking at creating a highly available setup with EC2. It would involve several web server nodes acting as front-ends to multiple NFS and database serves (backends). Ideally, the platform ...
0
votes
1answer
216 views

Amazon Ec2 nfs permission problem

After sharing the file from nfs server the ownership and group looks like nobody nobody. so how do i change the same permission as what i have in nfs server? Please suggest. Thanks in advance.
1
vote
2answers
398 views

Easy way to update apache on a server cluster with shared NFS conf?

we have a server setup where a server cluster connected with a db/files/conf server shared by nfs serve our sites, behind an Elastic Load Balancer at Amazon EC2. The setup works correctly, but ...
3
votes
2answers
4k views

exportfs: internal: no supported addresses in nfs_client

I am trying to set up a NFS server on an AWS instance running SLES11. After installing nfs-utils, I tried to export a test share. Here is what my /etc/exports file looks like: /opt/share1 ...
1
vote
2answers
813 views

ls hangs after NFS server reboot

I've got server A and server B. B acts as an nfs server, A mounts from B. Both are running on EC2. Sometimes I have to shut down B and start a new instance (identical instance). After B is back up, ...
0
votes
1answer
633 views

(Amazon AWS) EBS mount error: Stale NFS file handle

I have an EC2 instance that just went offline (cannot even be pinged) but is still reflected as operational. In an effort to retrieve data stored on an attached EBS, I did a forced detach of the ...
1
vote
1answer
779 views

Very Slow Sequential Reads over NFS from an XFS disk in Amazon EC2

I am using tiobench to test performance of an NFS mounted volume, and notice that Sequential Reads are much slower than Random Reads. This isn't the behavior when I run the same test on the disk ...