This home is Utilized in LDAP lookup queries for finding LDAP group names a person belongs to. The worth of the home is used to build LDAP group look for question and it is utilised to indicate what a bunch's objectClass is. Every single LDAP group has selected objectClass. For instance: group, groupOfNames, groupOfUniqueNames and many others.
To estimate the dimensions of data flowing through operators in Hive/Tez (for reducer estimation and so on.), typical row measurement is multiplied with the total amount of rows coming out of every operator. Typical row dimension is computed from ordinary column size of all columns within the row.
Whether or not to set up split places to match nodes on which LLAP daemons are jogging, in place of using the areas supplied by the split by itself.
Regardless of whether Hive really should periodically update endeavor development counters all through execution. Enabling this allows job development to be monitored much more closely in The work tracker, but may perhaps impose a general performance penalty.
The string the regex are going to be matched towards is of the following type, the place ex can be a SQLException:
LDAP connection URL(s), price may be a SPACE separated listing of URLs to multiple LDAP servers for resiliency. URLs are tried out within the buy specified till the relationship is thriving.
No matter whether column accesses are tracked from the QueryPlan. This is useful to establish how tables see this are accessed and to determine if you will find squandered columns that could be trimmed.
Most variety of bytes a script is permitted to emit to standard error (for every map-cut down task). This stops runaway scripts from filling logs partitions to potential.
Sets the amount of decrease responsibilities for each Spark shuffle phase (e.g. the number of partitions when executing a Spark shuffle). This can be established to -1 by default (disabled); rather the quantity of decrease jobs is dynamically calculated depending on Hive data statistics. Setting this to a constant price sets the identical amount of partitions for all Spark shuffle stages.
No matter if to enhance multi team by query to generate just one M/R position prepare. If the multi team by query has popular team by keys, It will likely be optimized to deliver an individual M/R job.
A comma separated list of hooks which put into action QueryLifeTimeHook. These will probably be induced right before/right after query compilation and ahead of/following query execution, inside the get specified.
Employee threads spawn MapReduce Positions to carry out compactions. They do not do the compactions themselves. Escalating the amount of employee threads will lessen time it takes tables or partitions to be compacted once they are identified to wish compaction.
Whether the Hive metastore really should make an effort to use immediate SQL queries as opposed to the DataNucleus for sure read paths. This tends to improve metastore effectiveness when fetching many partitions or column statistics by orders of magnitude; even so, it is not certain to work on all RDBMS-es and all variations.
A beneficial integer that decides the amount of Tez classes that needs to be released on Every single of your queues specified by hive.server2.tez.default.queues. Decides the parallelism on Every queue.