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Caching
Configuration Accumulo tablet servers have block caches that buffer data in memory to limit reads from disk. This caching has the following benefits: reduces latency when rea... -
Configuring MySQL for Ranger
Prerequisites Steps RHEL/CentOS/Oracle/Aamazon Linux SLES Prerequisites When using MySQL, the storage engine used for the Ranger admin policy store tables MUST support trans... -
Comparability, Equality, Orderability and Equivalence
Concepts Comparability Equality Orderability Equivalence Comparability and equality Comparability Orderability Between different Agtypes AGE already has good semantics for... -
System Metadata Tables
Accumulo tracks information about tables in metadata tables. The metadata for most tables is contained within the metadata table in the accumulo namespace, while metadata for that... -
Config Management
Introduction Dataset Config Management Requirement Data Model Versioning Client library Config Store Current Dataset Config Management Implementation Data model Client appli... -
Relation
countBy difference differenceWith unionWith union gt gte intersection lt lte max min propEq sortBy pathEq maxBy minBy equals identical eqBy clamp sortWith c... -
Methods
String Methods Collection Methods List Methods Map Methods Temporal Methods Enum Methods Optional Methods Other Methods When writing the “filter” for a JDOQL Query you can... -
Configure Kyuubi to use Custom Authentication
Build A Custom Authenticator Enable Custom Authentication Besides the builtin authentication methods, kyuubi supports custom authentication implementations of org.apache.kyuubi... -
Transactions
Locking Non-Transactional When managing the persistence of objects using a PersistenceManager it is common to handle all datastore operations in a transaction. For this reason ... -
Switching to an Oracle Database After Installation
About This Task Prerequisites Steps About This Task If you want to use an Oracle database with SAM or Schema Registry after you have performed your initial HDF installation o...
