Introduction

This document serves as a Root Cause Analysis for the Alma service interruption experienced by Ex Libris customers on Aug/26/2015.

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 AP01 instance at the APAC Data Center during the following hours:

August 26, 2015 from 09:48 AM until 10:20 AM Singapore time.

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:

Online server experience memory issues and as a result the service was unavailable for the
environment.

Technical Action Items and Preventive Measures

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

• Ex Libris is closely monitoring the memory use of the system to prevent another situation
  of happening.

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/