If ORC reader encounters corrupt details, this value will likely be applied to find out whether or not to skip the corrupt information or throw an exception. The default habits is always to toss an exception.
To estimate the scale of information flowing through operators in Hive/Tez (for reducer estimation etcetera.), typical row dimensions is multiplied with the entire range of rows popping out of every operator. Normal row measurement is computed from ordinary column sizing of all columns while in the row.
Annotation of your operator tree with statistics details involves column statistics. Column statistics are fetched from your metastore.
When accurate, holds a lock file during the scratch directory. If a Hive method dies and accidentally leaves a dangling scratchdir driving, the cleardanglingscratchdir tool will eliminate it.
This residence is used in LDAP look for queries when getting LDAP group names that a particular user belongs to. The value on the LDAP attribute, indicated by this residence, needs to be a complete DN to the consumer or even the shorter username or userid.
Ascertain the amount of map process used in the abide by up map join job to get a skew sign up for. It ought to be applied together with hive.skewjoin.mapjoin.min.break up to complete a great grained Handle.
Other things might incorporate your educational stage along with the complexity of the job. However, we try to accomplish just about every assignment as rapidly as you possibly can.
Both The situation of the HiveServer2 worldwide init file or maybe a Listing that contains a .hiverc file. If your assets is about, the worth need to be a valid route to an init file or Listing the place the init file is situated.
Location this property to real will have HiveServer2 execute Hive operations since the consumer earning the calls to it.
Highest size (in bytes) in the inputs on which a compact index is routinely utilised. A detrimental range is such as infinity.
A comma separated list read here of hooks which apply QueryLifeTimeHook. These will be induced right before/just after question compilation and before/right after query execution, inside the order specified.
The Hive/Tez optimizer estimates the data dimension flowing by means of Every single with the operators. From the absence of simple statistics like number of rows and information dimension, file size is utilized to estimate the selection of rows and facts dimensions.
Besides the configuration Qualities detailed On this area, some Homes in other sections may also be related to ORC:
Establishes the quantity of compaction documents in state 'did not initiate' is going to be retained in compaction record for the presented desk/partition.