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ZooKeeper
ZooKeeper ACLs ACL errors during upgrade ZooKeeper ACLs Accumulo requires full access to nodes in ZooKeeper under the /accumulo path. The ACLs can be examined using the ZooKee... -
Object States
Detecting Object State Persisting an object Updating an object Deleting an object Possible state transitions JDO manages the lifecycle of an object, from creation (Transient ... -
1. Getting Ready
This section describes the information and materials you should get ready to install a cluster using Ambari. Ambari provides an end-to-end management and monitoring solution for y... -
Iceberg
Iceberg Integration Dependencies Iceberg Operations Apache Iceberg is an open table format for huge analytic datasets. Iceberg adds tables to compute engines including Spark, T... -
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... -
JDO v JPA : ORM
Relationships There are 2 prevalent specification in the Java ORM world. JDO provides the most complete definition, whilst JPA is the most recent. Relationships In this guide w... -
4.14 Create an animation from multiple R plots
References When you generate a series of plots in a code chunk, you can combine them into an animation. It is easy to do so if the output format is HTML—you only need to install ... -
Seq
_(value) Arguments Returns Example _.chain(value) Since Arguments Returns Example _.tap(value, interceptor) Since Arguments Returns Example _.thru(value, intercept... -
Iceberg
Iceberg Integration Dependencies Configurations Iceberg Operations Apache Iceberg is an open table format for huge analytic datasets. Iceberg adds tables to compute engines in... -
Collections
_.at(collection, [index]) Arguments Returns Example _.contains(collection, target, [fromIndex=0]) Aliases Arguments Returns Example _.countBy(collection, [callback=identit...