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    Leganto AP01 - RCA - March 4, 2019


    This document serves as a Root Cause Analysis for the Leganto service interruption experienced by Ex Libris customers on March 4, 2019

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

    March 4th,  2019 from 06:04 PM until 06:43 PM 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:

    The cause of this failure is still under active investigation

    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 Engineers are working closely with Oracle support on investigating the root cause of this interruption

    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:

    These updates are automatically sent as emails to registered customers.

    Publication History

    Date Publication History
    March 4, 2019 Initial publication