Controls no matter whether to hook up with remote metastore server or open a completely new metastore server in Hive Shopper JVM. As of Hive 0.10 this is now not made use of. In its place if hive.metastore.uris is set then remote method is assumed if not local.
Moreover the configuration Qualities listed In this particular portion, some Attributes in other sections can also be relevant to ORC:
When enabled, this feature lets a consumer script to exit productively with out consuming all the data with the normal input.
This selection implies the amount memory the area task may take to carry The crucial element/price into an in-memory hash desk. If your area endeavor's memory usage is greater than this quantity, the community process will likely be aborted. This means the information of compact table is too large being held in memory.
When enabled, this selection lets a user script to exit correctly with no consuming all the data with the regular input.
When configuring the max connection pool sizing, it is usually recommended to take into consideration the amount of metastore cases and the number of HiveServer2 scenarios
The most memory for use by map-aspect group aggregation hash desk. If the memory utilization is bigger than this amount, drive to flush info.
For other conditional joins, if input stream from a small alias may be immediately applied to the be a part of operator without filtering or projection, the alias need not be pre-staged within the distributed cache via a mapred local task. Currently, have a peek here it's not working with vectorization or Tez execution motor.
The check interval for session/operation timeout, which can be disabled by setting to zero or damaging worth.
The default partition name just in case the dynamic partition column benefit is null/empty string or another values that can't be escaped.
Regardless of whether to insert into multilevel nested directories like "insert directory '/HIVEFT25686/chinna/' from desk".
A comma separated listing of builtin UDFs that aren't allowed to be executed. A UDF that is definitely A part of the record will return an error if invoked from a question.
Irrespective of whether Hive enables the optimization about changing popular join into mapjoin determined by the enter file sizing. If this parameter is on, and also the sum of measurement for n-one of your tables/partitions for an n-way join is smaller sized than the dimensions specified by hive.
No matter whether to permit Log4j2's asynchronous logging. Asynchronous logging can give sizeable effectiveness improvement go to my site as logging will likely be handled in a very independent thread that takes advantage of the LMAX disruptor queue for buffering log messages.