About Damian_S

Damian_S · ‎04-28-2020

Hi, After recreating hadoop cluster on HDInsight and connecting to the external metastore I get an error "Custom Ambari Metastore DB must be empty". Why I get this error? The goal was to keep all the metadata in external DB in case to preserve these data every time when I delete and recreate the cluster.

Damian_S · ‎04-16-2020

I haven't migrated the original metastore data. Is it possible to do this if I haven't put my metastore data outside the default database (I found information that by default metastore data is stored in derby database on the head node)? Or better way is to create some external database to keep metastore data and point the cluster to use this when re-creating?

Damian_S · ‎04-16-2020

Hi, I've created hadoop cluster on Azure HDinsight, next I've created some databases on hive. After deleting and re-creating cluster with connection to the same storage account hive is not showing all databases by 'show databases;' command, I see only three default databases (default, information_schema,sys) even though the databases I've created are visible in hdfs.

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ambari external metastore must be empty

Re: HIVE don't display databases after re-creating...

HIVE don't display databases after re-creating clu...