Hi,
We planning to soon migrate our Elastic to a new Opensearch cluster. Our existing elastic has a lot of historic alarm data, going back three years. Is there a safe way to delete historic alarm data, say older than 6 months to reduce the size of the dataset?
Our current elastic snapshot is 118GB, and to perform the steps of restoring the snapshot onto Elastic 7.17 and then onto Opensearch, I'd like to reduce the size of the data as much as possible to make it easier to move the snapshot around.
Thanks
Chris
Hi Chris,
Does this DataMiner Docs page provide the answer you were looking for?
https://docs.dataminer.services/user-guide/Troubleshooting/Procedures/Manually_removing_old_alarms_from_ES.html
Partially, yes. It doesn't answer if it's safe to delete the indexes entirely and if they'll be recreated
Specifically, is it ok to delete the dms-suggest-alarms and dms-alarms indices?
I will delete these at the intermediate stage of the migration, (Elastc 7.17 stage) and not from the running system.
I'm assuming dataminer will recreate these indices as require, and won't complain about the data being gone from them