Controls irrespective of whether to connect to distant metastore server or open a fresh metastore server in Hive Customer JVM. As of Hive 0.ten That is now not utilised. As an alternative if hive.metastore.uris is ready then distant mode is assumed or else nearby.
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When seeking a lesser subset of data for simple LIMIT, the amount size we need to ensure Each and every row to get at the least.
Hash aggregation will be turned off Should the ratio amongst hash table sizing and input rows is bigger than this number. Established to 1 to make sure hash aggregation is rarely turned off.
Must rework the mapred perform or not. This can be to start with introduced by SymlinkTextInputFormat to switch symlink documents with actual paths at compile time.
In the process of Mapjoin, The real key/benefit might be held while in the hashtable. This benefit indicates the load element to the in-memory hashtable.
To safeguard the cluster, this controls the quantity of partitions may be scanned for each partitioned table. The default worth "-1" signifies no limit. The limit on partitions isn't going to have an affect on metadata-only queries.
A comma divided list of buyers that may be additional towards the ADMIN job once the metastore starts off up. Far more customers can however be additional down the road.
While mr continues to be the default motor for historic factors, it's alone a historical motor which is deprecated inside the Hive 2 line (HIVE-12300). It might be eliminated with out further more warning.
Set this to genuine if desk directories must inherit the permissions with the warehouse or databases directory as opposed to remaining produced with permissions derived from dfs umask.
Working with this regex as an alternative to updating the original regex for hive.stability.authorization.sqlstd.confwhitelist signifies which you can append towards the default that is established by SQL common authorization as an alternative to replacing it entirely.
Moreover the configuration properties stated Within this part, some properties in content other sections also are linked to ORC:
Whether or not to help Log4j2's asynchronous logging. Asynchronous logging can give sizeable efficiency advancement as logging will likely be managed in a individual thread that uses the LMAX disruptor queue for buffering log messages.