When hive.improve.limittranspose is legitimate, this variable specifies the minimal reduction within the variety of tuples with the outer input of your join or input from the union which the optimizer should get as a way to utilize the rule.
A constructive integer that establishes the volume of Tez periods that needs to be launched on Just about every in the queues specified by hive.server2.tez.default.queues. Establishes the parallelism on each queue.
This flag needs to be established to accurate to empower vectorized manner of the cut down-facet GROUP BY query execution. The default worth is real.
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Comma separated listing of configuration choices which really should not be read through by regular person, including passwords.
What number of rows Using the very same critical benefit needs to be cached in memory for every sort-merge-bucket joined table.
Establish if we have a skew vital in sign up for. If we see a lot more than the desired amount of rows While using the similar key in join operator, we expect The true secret like a skew be a part of important.
This configuration residence enables the consumer to Our site offer a comma-divided list of URLs which provide the type and placement of Hadoop credential Home Page suppliers.
Thrift will not support nulls in maps, so any nulls existing in maps retrieved from object-relational mapping (ORM) should be either pruned or converted to vacant strings.
Highest variety of bytes a script is permitted to emit to straightforward mistake (for each map-lessen process). This stops runaway scripts from filling logs partitions to capacity.
Highest number of retries when stats publisher/aggregator acquired an exception updating intermediate databases. Default is not any attempts on failures.
When Untrue, would not create a lock file and so the cleardanglingscratchdir Software can not take out any dangling scratch directories.
To clean up the Hive scratch directory whilst starting the Hive server (or HiveServer2). This isn't an selection for a multi-user atmosphere because it will accidentally clear away the scratch directory in use.
Quantity of consecutive failed compactions for a given partition and then the Initiator will end trying to timetable compactions routinely.