February MAR

Peter Woods | AppHosting | Thursday, February 26th, 2009

Sitemason Stabilization: This month the Sitemason service grew to utilize five web servers behind the F5 LTM. The service is still suffering from intermittent issues such as intermittent login failures or XML parsing failures. This is also the first service that I have written an iRule for. The rule that I wrote will redirect the user to a “service not available” web page if the Sitemason pool fails as a whole. This was a learning experience, and I created the rule using various code snippets that I found on the F5 DevCentral website.

Sun Identity Management: Both of the ESX servers are fully operational in the VUH data center, and all of the virtual machines have been configured for the new network location. Both of the F5 LTMs are online; however, I only have limited network connectivity to the VIPs that I have created. I’m working with the VUH staff to diagnose the connectivity issues.

ITS Website Redesign: All of the virtual hosts for the miscellaneous ITS websites (except the main ITS website) have been moved to other servers in preparation for the final jump to the Drupal-based site.  The last major step is the content reviews.

Web Service Resource Allocations: I increased the disk space allocation for the WWW and WWW4 web server pairs. Content growth has been fairly steady on both services, and the Nagios service checks were starting to alert at warning level. The MySQL server VM also received more memory and disk space.

MySQL InnoDB Reconfiguration: The existing InnoDB tables on the shared MySQL server were stored in a single file, which made it difficult to determine which customers were consuming an inordinate amount of resources. It took about two hours to re-import all of the databases using InnoDB tables. Some of them had to be imported twice due to corruption issues from an unknown source.

Cohosted Server Patching: The Greeklife, Honor Council, and VICC websites were upgraded to current RHEL standards. The vmware-tools were also updated.

Exchange 2007 Deployment: I have done miscellaneous tasks in support of this project such as configuring the service point VIPs on the F5 LTM and debugging connectivity issues. The CAS VIPs also has a pair of minor iRules to forward connections.