Glossary
Arcadia Enterprise
Arcadia Data's fully-featured data modeling and visualization platform.
Arcadia Instant
Arcadia Data's data modeling and visualization platform has an abbreviated list of features. To enable the full suite of features, including Arcadia Engine, use
Arcadia Enterprise.
Comma-Separated Values (CSV)
File storage for tabular data (numbers and text) in plain text. Each line of the file is a data record, where fields separated by commas. Arcadia supports enhanced importing and conversion from CSV to
HDFS, enabling datatype selection and other features.
Dataset
Either to the contents of a single data table, or a data matrix. Every column of the table represents a variable, and each row corresponds to a member of the data set. Each cell of the table lists the values of the variables for each member of the dataset. Individually, each value is called a datum. May be used for a collection of related tables that model and represent more complex related data.
Hadoop Distributed File System (HDFS)
HDFS is a scalable, distributed, portable file-system for the Hadoop framework. A basic Hadoop cluster has a single namenode and a cluster of datanodes. HDFS stores large files, in the range of gigabytes to terabytes, across multiple machines.
Kerberos
Computer network mutual authentication protocol that facilitates the exchange of secure identity 'tickets' between nodes that communicate over a non-secure network. Kerberos protocol is primarily a client–server model: both the user and the server verify each other's identity. The messages are protected against eavesdropping and replay attacks by symmetric key cryptography. Kerberos uses UDP port 88
by default.
Lightweight Directory Access Protocol (LDAP)
Open, vendor-neutral, industry standard application protocol for accessing and maintaining distributed directory information services over an Internet Protocol (IP) network. Directory services enable the sharing of information about users, systems, networks, services, and applications throughout the network.
NaN
NaN (nan
) is an abbreviation for "not a number", a numeric data type for an undefined or unrepresentable value, especially in floating-point calculations. For example, 0/0
is undefined as a real number, and √-1
is imaginary; both are represented by nan
.
Normal socket type
Socket type
NoSasl authentication
The authentication mechanism is coupled to application protocols.
Plain authentication
The authentication mechanism is de-coupled from application protocols.
Simple Authentication and Security Layer (SASL)
A framework for authentication and data security in IP, where authentication mechanisms are decoupled from application protocols. Thus, authentication mechanisms may be used in any application protocol that uses SASL. Authentication mechanisms can also support proxy authorization, where one user assumes the identity of another, and provide a service layer of data security for data integrity and data confidentiality.
SSL with certificate
Socket type