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    6. Primo MT EU02 - RCA - September 26, 2016

    Primo MT EU02 - RCA - September 26, 2016

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    1. Introduction
    2. Event Timeline
    3. Root Cause Analysis
    4. Technical Action Items and Preventive Measures
    5. Customer Communication

    Confidential Information, Disclaimer and Trade Marks

    Introduction

    This document serves as a Root Cause Analysis for the Primo service interruption experienced by Ex Libris customers on September 26,2016

     

    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 Primo MT EU02 instance at the Europe Data Center during the following hours: 

     

    September 26, 2016 From 1:57PM until 3:42 PM amsterdam time zone

     

    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 service interruption was a result of an application defect that is causing a significant impact on the search engines and get them to a state in which they are not able to function, they consume all the available hardware and become unavailable.

    We have also identified that a system configuration is preventing us from restoring the service quickly once a situation as the above occurs.

    Technical Action Items and Preventive Measures

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

     

    1. We have implemented an emergency procedure that would allow us to mitigate the existing problem and reduce the recovery time
    2. We are adding several code corrections in the next release – that will reduce the search engine impact and will correct the configuration setting in a way that will enable a quicker recovery

     

    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/

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      • Primo MT EU02 - RCA - September 25 , 2024
      • Primo MT EU02 RCA - April 02, 2016
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      Content Type
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      Language
      English
      Product
      Primo
    2. Tags
      1. environment:Primo MT EU02
      2. Root Cause Analysis
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