This flag must be established to genuine to permit vectorizing rows making use of vector deserialize. The default worth is fake.
To estimate the dimensions of data flowing by means of operators in Hive/Tez (for reducer estimation and so forth.), average row dimension is multiplied with the full range of rows popping out of every operator. Regular row measurement is computed from ordinary column measurement of all columns from the row.
When enabled, this option enables a consumer script to exit efficiently without consuming all the info within the standard input.
This assets is Utilized in LDAP look for queries when acquiring LDAP team names that a particular user belongs to. The value with the LDAP attribute, indicated by this residence, ought to be a full DN with the user or even the short username or userid.
When correct, this turns on dynamic partition pruning to the Spark motor, to ensure that joins on partition keys are going to be processed by creating to a temporary HDFS file, and read afterwards for eradicating needless partitions.
If turned on, splits produced by ORC will include metadata concerning the stripes inside the file. you can find out more This details is read remotely (in the client or HiveServer2 machine) and despatched to all of the tasks.
This parameter decides if Hive need to insert a further map-decrease position. If the grouping set cardinality (four in the instance higher than) is in excess of this price, a completely new MR position is added beneath the assumption the orginal "group by" will lessen the details dimensions.
By default Tez will request on the other hand a lot of CPUs MapReduce is configured to utilize for each container. This may be accustomed to overwrite the default.
The most info measurement for the dimension table that generates partition pruning information. If reaches this limit, the optimization might be turned off.
Highest range of bytes a script is allowed to emit to standard error (for every map-minimize undertaking). This helps prevent runaway scripts from filling logs partitions to potential.
A comma divided list of hooks which look what i found put into action QueryLifeTimeHook. These will likely do my stats assignment be triggered before/just after question compilation and prior to/following query execution, from the purchase specified.
Thrift would not support nulls in maps, so any nulls current in maps retrieved from object-relational mapping (ORM) have to be both pruned or transformed to vacant strings.
If a job fails, no matter if to supply a link from the CLI for the task with by far the most failures, along with debugging hints if relevant.
A COMMA-separated list of group names which the customers really should belong to (a minimum of one of many teams) for authentication to triumph. See Team Membership for particulars.