The default range of lessen responsibilities per job. Generally set to a main close to the quantity of offered hosts. Ignored when mapred.
Verify if a query strategy consists of a cross product or service. If there is one particular, output a warning to the session's console.
Length of time the Spark Remote Driver really should anticipate a Spark work to generally be submitted right before shutting down. If a Spark career is just not introduced after this period of time, the Spark Distant Driver will shutdown, Therefore releasing any methods it has been holding on to.
Irrespective of whether Hive should periodically update job progress counters through execution. Enabling This enables undertaking development to get monitored far more closely in the job tracker, but might impose a overall performance penalty.
This flag need to be established to legitimate to enable vectorizing rows utilizing vector deserialize. The default worth is false.
The utmost memory for use for hash in RS operator for prime K choice. The default price "-1" suggests no Restrict.
This variety implies the amount of memory the area process can take to carry The true secret/benefit into an in-memory hash desk. When the neighborhood endeavor's memory use is over this selection, the neighborhood undertaking will probably be aborted. It means the information of modest desk is too massive to be held in memory.
The quantity of rows Using the exact essential price should be cached in memory for every sort-merge-bucket joined desk.
The utmost memory to be used by YOURURL.com map-facet team aggregation hash table. In the event the memory usage is higher than this number, pressure to flush knowledge.
This property is to indicate what prefix to make use of when building the bindDN for LDAP relationship (when working with just baseDN). So bindDN might be "=,". If userDNPattern and/or groupDNPattern is Utilized in the configuration, the guidKey is not desired. Mainly needed when just baseDN is getting used.
Regardless of whether to insert into multilevel nested directories like "insert directory '/HIVEFT25686/chinna/' from desk".
This limitations the amount of partitions that could be asked for within the Metastore for a offered desk. A question won't be executed if it makes an attempt to fetch additional partitions for every table in comparison to the Restrict configured.
Generates necessary schema over a startup if a single does not exist. Established this check my source to Untrue, after generating it the moment.
Annotation useful content of your operator tree with statistics information and facts necessitates partition amount basic statistics like amount of rows, facts measurement and file size. Partition statistics are fetched with the metastore. Fetching partition statistics for each desired partition could be expensive if the number of partitions is substantial.