When I want to run notebook in databricks all queries, saves and read take really long and I found error message in the clusters event log that says: Metastore is down. So, I think cluster is not able to connect to the metastore right now. Could be this the reason? I tried to create another cluster but with the same result. Any help on this? Unity catalog`s Metastore is on ADLS gen2. and we use premium workspace.

After few minutes the command is finished. But simple load of delta table with few records takes 5 minutes or so.

Thanks