OTRS Update Guide

This work is copyrighted by OTRS AG (https://otrs.com), Zimmersmühlenweg 11, 61440 Oberursel, Germany.

Contents

• Introduction
• Hardware and Software Requirements
  • Hardware Requirements
  • Software Requirements
• Installation
• Updating
  • Step 1: Stop All Relevant Services and the OTRS Daemon
  • Step 2: Backup Files and Database
  • Step 3: Install the New Release
    • Restore Old Configuration Files
    • Restore Article Data
    • Restore Already Installed Default Statistics
    • Set File Permissions
    • Install Required Programs and Perl Modules
    • Setup Elasticsearch Cluster
  • Step 4: Run the Migration Script
  • Step 5: Update Installed Packages
  • Step 6: Start your Services
  • Step 7: Start the OTRS Daemon and Web Server
  • Step 8: Manual Migration Tasks and Changes
  • Recommendation: Convert Your MySQL Database
    • Upgrading Elasticsearch
    • Allow Program Safe to Run
• Backup and Restore
  • Backup
  • Restore
• Performance Tuning
  • Ticket Search Index
  • Document Search
    • Heap Size
    • Disk Allocation
  • Article Storage
  • Archiving Tickets
  • Tuning the Web Server
  • Caching
  • Clustering
  • Limits of Objects