diff --git a/content/v2.0/reference/glossary.md b/content/v2.0/reference/glossary.md index 19fb0590c..897fabe5b 100644 --- a/content/v2.0/reference/glossary.md +++ b/content/v2.0/reference/glossary.md @@ -93,6 +93,7 @@ A bucket is a named location where time series data is stored. All buckets have Comma-separated values (CSV) delimits text between commas to separate values. A CSV file stores tabular data (numbers and text) in plain text. Each line of the file is a data record. Each record consists of one or more fields, separated by commas. CSV file format is not fully standardized. InfluxData uses annotated CSV (comma-separated values) format to encode HTTP responses and results returned to the Flux csv.from() function. For more detail, see [Annotated CSV](/v2.0/reference/annotated-csv/). + ### int (data type) +A data type that represents an integer, a whole number that's positive, negative, or zero. + ## J ### JWT +Typically, JSON web tokens (JWT) are used to authenticate users between an identity provider and a service provider. A server can generate a JWT to assert any business processes. For example, an "admin" token sent to a client can prove the client is logged in as admin. Tokens are signed by one party's private key (typically, the server). Private keys are used by both parties to verify that a token is legitimate. + +JWT uses an open standard [RFC 7519](https://tools.ietf.org/html/rfc7519). + ### Jaeger -### Java Web Tokens +Open source tracing used in distributed systems to monitor and troubleshoot transactions. ### join +### JSON + +JavaScript Object Notation (JSON) is an open-standard file format that uses human-readable text to transmit data objects consisting of attribute–value pairs and array data types. + ## K ### keyword ---> +A keyword is reserved by a program because it has special meaning. Every programming language has a set of keywords (reserved names) that cannot be used as an identifier. + +See a list of [Flux keywords](/v2.0/reference/flux/language/lexical-elements/#keywords). ## L - +### logs + +Logs record information. Event logs describe system events and activity that help to describe and diagnose problems. Transaction logs describe changes to stored data that help recover data if a database crashes or other errors occur. + +The InfluxDB 2.0 user interface (UI) can be used to view log history and data. + ### Line Protocol (LP) The text based format for writing points to InfluxDB. See [Line Protocol](/v2.0/reference/line-protocol/). @@ -477,8 +503,11 @@ The oldest metrics are dropped first when this buffer fills. Related entries: [output plugin](/#output-plugin) - +### missing values + +Denoted by a null value. Identifies missing information, which may be useful to include in an error message. + +The Flux data model includes [Missing values (null)](/v2.0/reference/flux/language/data-model/#missing-values-null). ## N @@ -506,17 +535,25 @@ A symbol that usually represents an action or process. For example: `+`, `-`, `> The object or value on either side of an operator. - + +An option assignment binds an identifier to an option. + +Learn about the [Option assignment](/v2.0/reference/flux/language/assignment-scope/#option-assignment) in Flux. + ### organization A workspace for a group of users. All dashboards, tasks, buckets, members, and so on, belong to an organization. ### output plugin -Telegraf output plugins deliver metrics to their configured destination. In order to activate an output plugin, it needs to be enabled and configured in Telegraf's configuration file. +Telegraf output plugins deliver metrics to their configured destination. To activate an output plugin, you must enable and configure the plugin in Telegraf's configuration file. Related entries: [aggregator plugin](/telegraf/v1.10/concepts/glossary/#aggregator-plugin), [flush interval](/telegraf/v1.10/concepts/glossary/#flush-interval), [input plugin](/telegraf/v1.10/concepts/glossary/#input-plugin), [processor plugin](/telegraf/v1.10/concepts/glossary/#processor-plugin) @@ -525,9 +562,11 @@ Related entries: [aggregator plugin](/telegraf/v1.10/concepts/glossary/#aggregat ### parameter A key-value pair used to pass information to functions. - + +Method for passing information from one process to another. For example, an output parameter from one process is input to another process. Information passed through a pipe is retained until the receiving process reads the information. + ### pipe-forward operator An operator (`|>`) used in Flux to chain operations together. Specifies the output from a function is input to next function. @@ -537,19 +576,8 @@ An operator (`|>`) used in Flux to chain operations together. Specifies the outp A point in the InfluxDB data structure that consists of a single collection of fields in a series. Each point is uniquely identified by its series and timestamp. In a series, you cannot store more than one point with the same timestamp. When you write a new point to a series with a timestamp that matches an existing point, the field set becomes a union of the old and new field set, where any ties go to the new field set. - ### precision