Hi, team. We have deployed Datahub with ES as its ...
# all-things-deploymentl
lemon-cat-72045
09/23/2022, 8:24 AMHi, team. We have deployed Datahub with ES as its graph database backend. I'm wondering if there is guidance to migrate from ES to Neo4j without losing any data. Thanks in advance.
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incalculable-ocean-74010
09/23/2022, 10:43 AMHello Larry,
You can run the restore indicies job (https://datahubproject.io/docs/how/restore-indices) once you change the underlying graph database. This will imply downtime and search-related capabilities will not work correctly until the job has run succesfully.
incalculable-ocean-74010
09/23/2022, 10:45 AMThe restore indices job reads the aspect information in the relational DB and sends corresponding MAE messages to DataHub’s processor which in turns updates the graph DB.
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lemon-cat-72045
09/26/2022, 2:02 AM@fast-oyster-93603 Thanks a lot for the instructions.