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    Alma EU01 - RCA - April 20, 2019


    This document serves as a Root Cause Analysis for the Alma service interruption experienced by Ex Libris customers on April 20, 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

    Intermediate service interruptions were experienced by Ex Libris customers served by the Alma EU01 instance at our European Data Center during the following time period:

    April 20th,  2019 from 10:10 PM until 10:42 PM Amsterdam 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:

    A non-disruptive maintenance activity, done during the maintenance window, got into an endpoint scenario.
    This scenario caused disruption to the environment and required system restart to bring the application back to full functionality.


    Technical Action Items and Preventive Measures

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

    • Procedures were updated to handle this endpoint scenario



    Customer Communication

    Ex Libris 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
    May 6, 2019 Initial Publication
    July 17, 2019 Fixed incorrect date



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