Here is a brief summary of the things I’ve been working on in the 16th week of 2016.


Most of the core services which power the ROC are hosted in the C4 cluster in the CSIR and managed by an OpenNebula cloud manager. There was a failure of the storage backend of the virtual machines, as well as a general misconfiguration of some of the VMS, which saw a lot of the important services go down. Debugging the issue took quite a few days prior to this week, but eventually this week they were brought back up. The Nagios monitoring system, Workload Management System, Top-BDII, APEL accounting service, ARGUS authorisation service, and Perun identity management service all suffered failures. With the exception of Perun, which is managed by CESNET, these were re-created with the AAROC DevOps code.