Whether or not to optimize multi team by question to create one M/R position system. Should the multi group by query has typical team by keys, it will be optimized to produce just one M/R task. (This configuration house was taken out in release 0.nine.0.)
Creates vital schema with a startup if just one isn't going to exist. Reset this to Untrue, following developing it as soon as.
Whether to setup split spots to match nodes on which LLAP daemons are operating, instead of using the destinations supplied by the break up itself.
Size of the wait around queue for async thread pool in HiveServer2. Soon after hitting this limit, the async thread pool will reject new requests.
If This is certainly set to accurate then the metastore statistics will likely be updated provided that all sorts of statistics (amount of rows, range of files, number of bytes, etcetera.) can be found. If not metastore statistics are up to date within a best energy vogue with whichever are available.
If enabled dictionary Examine will transpire after very first row index stride (default 10000 rows) else dictionary Check out will transpire before writing 1st stripe. In both circumstances, the decision to work with dictionary or not might be retained thereafter.
With hive.server2.session.check.interval established to your constructive time benefit, session might be closed when it's not accessed for this period of time, which can be disabled by location to zero or detrimental value.
The canonical list of configuration Homes is managed during the HiveConf Java course, so refer to the HiveConf.java file for a complete listing of configuration Qualities readily available in your Hive release.
Determines if, once the prefix of The real key useful for intermediate statistics selection exceeds a specific duration, a hash of The real key is made use of as an alternative. If the value < 0 then hashing is never utilized, if the worth >= 0 then hashing is made use of only in the event the key prefixes' duration exceeds that price.
This property is to indicate what prefix to work with when setting up the bindDN for LDAP connection (when making use of just baseDN). So bindDN are going to be "=,". If userDNPattern and/or groupDNPattern is used in the configuration, the guidKey isn't necessary. Principally demanded when just baseDN is getting used.
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Common error permitted for NDV estimates, expressed in percentage. This delivers a tradeoff among visit this website precision and compute Expense. A lessen worth with the error implies larger accuracy and a greater compute Value. (NDV signifies amount of distinct values.)
Set this to some optimum quantity of threads that Hive will use to list file information from file systems, such as file size and quantity of files per desk (advisable > 1 for blobstore).
Empower capturing compiler read through entity of remodel URI that may be introspected while in the semantic and exec hooks.