[GitHub] [incubator-iceberg] jerryshao opened a new pull request #406: Throw an exception when using Iceberg with Spark embedded metastore

[GitBox <gi...@apache.org>]

jerryshao opened a new pull request #406: Throw an exception when using Iceberg with Spark embedded metastore
URL: https://github.com/apache/incubator-iceberg/pull/406
 
 
   Iceberg's hive catalog has two issues work with Spark embedded metastore:
   
   1. Iceberg requires HIVE_LOCKS which doesn't exist in embedded metastore.
   2. Embedded metastore restricts only one client at a time, so once Spark creates a client, then Iceberg cannot open a client anymore, vice versa.
   
   Here propose a simple fix to restrict users to use iceberg when embedded metastore is enabled.

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