Introduction

This document serves as a Root Cause Analysis for the Primo service interruption experienced by Ex Libris customers on April 14, 2015.

The goal of this document is to share our findings regarding the event, specify the root cause analysis, outline actions to be taken to solve the downtime event, as well as preventive measures Ex Libris is taking to avoid similar cases in future.

Event Timeline

Service interruption was experienced by Ex Libris customers served by the Europe Data Center during the following hours: 

April 14, 2015 from 2:38 PM UTC until 2:52 PM UTC.

During the event, the service was unavailable for the environment.

Root Cause Analysis

Ex Libris Engineers investigated this event to determine the root cause analysis with the following results:

As part of a regular maintenance performed on the environment a human error occurred which had caused impact on file permission that made it un-usable.

Technical Action Items and Preventive Measures

Ex Libris has taken the following action and preventive measures to avoid such an occurrence in future:

• Verification was done to the regular maintenance procedure. The specific situation had been updated to make sure the process is clear in order to avoid human errors.

Customer Communication

ExLibris is committed to providing customers with prompt and ongoing updates during Cloud events. Ongoing and prompt updates on service interruptions appear in the system status portal at this address: http://status.exlibrisgroup.com/