Whether or not to enhance multi group by query to generate an individual M/R work program. If your multi group by query has popular group by keys, It's going to be optimized to make just one M/R job. (This configuration residence was taken out in launch 0.9.0.)
Outline the encoding technique to use even though composing info. Changing this could only affect The sunshine bodyweight encoding for integers. This flag will never alter the compression amount of greater degree compression codec (like ZLIB). Achievable choices are Velocity and COMPRESSION.
Generates essential schema on the startup if a person isn't going to exist. Reset this to Phony, just after producing it when.
Quantity of bits of randomness from the produced magic formula for interaction in between Hive consumer and remote Spark driver. Rounded down to closest a number of of 8.
Moreover the configuration Attributes detailed in this section, some HiveServer2 Homes are mentioned in other sections:
Produces necessary schema with a startup if one doesn't exist. Set this to false, following creating it at the time.
Comma divided listing of configuration alternatives which can be internally utilized and really should not be settable by way of set command.
Some pick queries may be transformed to an individual FETCH job, reducing latency. At the moment the query should be single sourced not getting any subquery and should not have any aggregations or distincts (which incur RS – ReduceSinkOperator, necessitating a MapReduce endeavor), lateral sights and joins.
This flag really should be established to legitimate to enable vectorizing working with row a knockout post deserialize. The default value is false.
A summary of I/O exception handler class names. This is certainly accustomed to assemble a list of exception handlers to handle exceptions thrown by report readers.
Chooses irrespective of whether query fragments will run in the container or in LLAP. When established to "all" everything operates in LLAP if at all possible; "only" is like "all" but disables fallback to containers, so that the query fails if it are not able to operate in LLAP.
This boundaries the volume of partitions that can be requested through the Metastore for a provided table. A query won't be executed if it makes an attempt to fetch extra partitions per table compared to limit configured.
A amount used to share sampling. By switching this selection, consumer will change the subsets of data sampled.
Title of the surroundings variable that retains this the one of a kind script see this website operator ID within the person's rework purpose (the custom mapper/reducer that the user has specified in the query).