0
votes
1answer
50 views

How does creating multiple virtual machines affect performance of a Dell Server? [closed]

Say, a dozen applications have to hosted on a single Dell Server using open source technologies like XenServer. Some of the applications are resource intensive while others are not. What should be ...
2
votes
2answers
1k views

Can fragmented MySQL innodb tables cause I/O issues? “task hung for 120 seconds” crashes?

Large innodb databases with load spikes seem to be causing random crashes with "task hung for 120 seconds" in the console. There are no logs being written to the system during these crashes. The ...
1
vote
1answer
715 views

Xen sharing partition physical vs. NFS

I have bunch of XEN virtual machines. I want to share few partitions that are on different drive. At first I was thinking of using "disk" variables in configuration file, but xen manual states: ...
6
votes
5answers
6k views

How to fine-tune our MySQL server?

MySQL is not my thing, yet I need to fine-tune one of our servers. Here are the requirements/specs: The MySQL server has only one significant database We only have one "type" of application ...
10
votes
3answers
2k views

Optimizing Apache and MySQL on Linux Xen VPS

I have a Xen virtual private server (VPS) running Ubuntu 8.10, with 128M RAM. I've found several "how to optimize Apache and MySQL for low-memory VPS" pages via Google, but they provide contradictory ...