The maximum memory for use for hash in RS operator for prime K choice. The default benefit "-1" means no Restrict.
configured with embedded metastore. For getting ideal performance, set config to fulfill the following affliction
Produces vital schema on the startup if one doesn't exist. Reset this to false, immediately after developing it after.
When seeking a smaller subset of data for easy LIMIT, exactly how much sizing we want to ensure Every row to get at the least.
Listing of the underlying PAM companies that should be employed when hive.server2.authentication variety is PAM. A file Using the very same identify will have to exist in /and so on/pam.d.
The main difference between this paramater and hive.improve.skewjoin is that this parameter takes advantage of the skew data saved while in the metastore to optimize the program at compile time itself. If there is absolutely no skew details in the metadata, this parameter will not have any impact.
The utmost memory for use by map-side team aggregation hash desk. Should the memory use is higher than this selection, drive to flush details.
Whether or not to get rid of the union and force the operators in between union along with the filesink higher than union. This avoids an additional scan of your output by union.
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This assets is Employed in LDAP search queries for locating LDAP group names a user belongs to. The value of the house is accustomed to build LDAP group search question which is utilized to point what a bunch's objectClass is. Each individual LDAP group has particular objectClass. For instance: team, groupOfNames, groupOfUniqueNames and many others.
This flag should be established to true to allow use of native quick vector map be a part of hash tables in queries employing MapJoin.
A person-specified customized LDAP question which will be accustomed to grant/deny an authentication ask for. In case the person is part on the question's outcome set, authentication succeeds. See Tailor made Query String for specifics.
No matter if Hive permits the optimization about changing common join into mapjoin depending on the input file dimension. If this parameter is on, along with the sum of measurement for n-1 on the tables/partitions for an n-way be part of is scaled-down than the dimensions specified by hive.
No matter if to insert into multilevel nested directories like "insert directory '/HIVEFT25686/chinna/' from desk".