Hi,
I'm currently preparing and testing to migrate our Elasticsearch cluster to an OpenSearch cluster, i have some questions:
To preface: STaaS is not an option at the moment.
- currently it takes around 5,5 hours to run the ReIndexElasticSearchIndexes tool. Is there a way to speed this up?
- After the first test run i notice we had an failed indexes ["dms-cjobsectiondefinition-2020.03.06.10-000001"] it seems to point to the now obsolete Jobs Manager, is there a way to safely purge all Jobs managers tables (wont be needing those anymore) so we don't migrate any unnecessary data?
Hi Gerwin,
you can probably speed up the reindexing by dropping some indexes that are not crucial for your operations. In the past when I was doing these kinds of migrations I would drop suggest-alarms, info, chistory_dominstance but I would suggest you check this before you delete them.
If you were to check the SLCCMigrator log you could find the error that is causing the reindexing to fail on that index for further investigation, but if the index is obsolete, you can delete it.
Also, I've found that using ElasticVue makes these migrations easier, so I would recommend that also.
Hope this helps,