Upgrade 3.4 to 5.0

Technical assistance
1

Infos:

  • Used Zammad version: 3.4
  • Used Zammad installation type: Debian Package
  • Operating system: Debian 9
  • Browser + version: Edge

Expected behavior:

  • When I upgrade Zammad and Elasticsearch it is working

Actual behavior:

  • Elasticsearch can not be upgraded to 7.*

Steps to reproduce the behavior:

  • Start Elasticsearch service (systemctl restart elasticsearch)
  • Error: The index [zammad_production/gmghf_9MSG-TdARE-WVCCw] was created with version [5.6.16] but the minimum compatible version is [6.0.0-beta1].
  • I updated elasticsearch to 6.8 beforehand and executed ‘zammad run rake searchindex:rebuild’

How can I re-index any other way? Or can I uninstall elasticsearch and reinstall it after upgrade of zammad to version 5?

2

Please follow elastics official upgrade path:

(as mentioned in Updating Zammad — Zammad documentation)

If nothing else connects to Elasticsearch (except Zammad), you could skip above painful migration path, kill the data directory of elasticsearch, reinstall it clean and proceed. Keep in mind to install the required plugin.

3

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