PerfectNewRelic

3.0.1

This project provides a Swift class wrapper for New Relic Agent SDK.
PerfectlySoft/Perfect-NewRelic-Linux

What's New

Perfect New Relic Library for Linux 简体中文

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This project provides a Swift Agent SDK for New Relic.

This package builds with Swift Package Manager and is part of the Perfect project but can be used as an independent module.

Release Note

This project is only compatible with Ubuntu 16.04 and Swift 4.0.3 Tool Chain.

Quick Start

Please use Perfect Assistant to import this project, otherwise an install script is available for Ubuntu 16.04:

$ git clone https://github.com/PerfectlySoft/Perfect-NewRelic-linux.git
$ cd Perfect-libNewRelic-linux
$ sudo ./install.sh

During the installation, it will automatically ask for license key, application name, language and its version. Then it will install the command line newrelic-collector-client-daemon as a service which you can find the configuration on /usr/local/etc/newrelic.service.

Configure Package.swift:

.Package(url: "https://github.com/PerfectlySoft/Perfect-NewRelic-linux.git", majorVersion: 3)

Import library into your code ( ⚠️NOTE⚠️ Since Swift 4.0.3 on linux has a significant linker issue, so module PerfectNewRelic must be accompanied with Foundation and Dispatch):

import PerfectNewRelic
import Foundation
import Dispatch

Aside of Swift - C syntax conversion differences, document can be found on New Relic Agent SDK

Configuration

Post Installation & Configuration can be found on New Relic - Configuring the Agent SDK, please note that NewRelic instance is configured as Daemon Mode which is highly recommended because the Embedded-mode is still experimental.

If success, you can create NewRelic instance easily:

let nr = try NewRelic()
  • Create a function to receive status change notifications:
nr.registerStatus { code in
	guard let status = NewRelic.Status(rawValue: code) else {
		// something wrong here
	}//end guard
	switch status {
		case .STARTING: // New Relic Daemon Service is starting
		case .STARTED: // New Relic Daemon Service is started
		case .STOPPING: // New Relic Daemon Service is stopping
		default: // shutdown already
   }//end case
}//end callback

Limiting or disabling Agent SDK settings

According to New Relic Limiting or disabling Agent SDK Settings, the following settings are available in Perfect NewRelic:

If you want to ... Use this setting ...
Disable data collection during a transaction nr.enableInstrumentation(false)
Configure the number of trace segments collected in a transaction trace let t = try Transaction(nr, maxTraceSegments: 50) // // Only collect up to 50 trace segments

API Quick Help

Base on New Relic's Document of Using the Agent SDK, Perfect NewRelic library provides identically the same functions of New Relic Agent SDK in Swift:

Instruments & Profiling

Function recordMetric()
Demo try nr.recordMetric(name: "ActiveUsers", value: 25)
Description Record a custom metric.
Parameters - name: name of the metric.
- value: value of the metric.
Function recordCPU()
Demo try nr.recordCPU(timeSeconds: 5.0, usagePercent: 1.2)
Description Record CPU user time in seconds and as a percentage of CPU capacity.
Parameters - timeSeconds: Double, number of seconds CPU spent processing user-level code
- usagePercent: Double, CPU user time as a percentage of CPU capacity
Function recordMemory()
Demo try nr.recordMemory(megabytes: 32)
Description Record the current amount of memory being used.
Parameters - megabytes: Double, amount of memory currently being used

Transaction

Transaction in Perfect NewRelic has been defined as a class, with constructior as below:

public init(_ instance: NewRelic,
    webType: Bool? = nil,
    category: String? = nil,
    name: String? = nil,
    url: String? = nil,
    attributes: [String: String],
    maxTraceSegments: Int? = nil
  ) throws

Constructor parameters:

  • instance: NewRelic instance, required.
  • webType: optional. true for WebTransaction and false for other. default is true.
  • category: optional. name of the transaction category, default is 'Uri'
  • name: optional. transaction name
  • url: optional. request url for a web transaction
  • attributes: optional. transaction attributes, pair of "name: value"
  • maxTraceSegments: optional. Set the maximum number of trace segments allowed in a transaction trace. By default, the maximum is set to 2000, which means the first 2000 segments in a transaction will create trace segments if the transaction exceeds the trace threshold (4 x apdex_t).

Demo of Transaction Class Initialization:

let nr = NewRelic()
let t = try Transaction(nr, webType: false,
	category: "my-class-1", name: "my-transaction-name",
	url: "http://localhost",
	attributes: ["tom": "jerry", "pros":"cons", "muddy":"puddels"],
	maxTraceSegments: 2000)

Error Notice

Perfect NewRelic provides setErrorNotice() function for transactions:

try t.setErrorNotice(
	exceptionType: "my-panic-type-1",
	errorMessage: "my-notice",
	stackTrace: "my-stack",
	stackFrameDelimiter: "<frame>")

Parameters of setErrorNotice():

  • exceptionType: type of exception that occurred
  • errorMessage: error message
  • stackTrace: print stack trace when error occurred
  • stackFrameDelimiter: delimiter to split stack trace into frames

Segments

Segments in a transaction can be either Generic, DataStore or External, see demo below:

// assume t is a transaction
try t.setErrorNotice(exceptionType: "my-panic-type-1", errorMessage: "my-notice", stackTrace: "my-stack", stackFrameDelimiter: "<frame>")

let root = try t.segBeginGeneric(name: "my-segment")
// do some generic operations in this transaction
try t.segEnd(root)

// NOTE: it will automatically obfuscate the sql input and rollup if failed as well
let sub = try t.segBeginDataStore(table: "my-table", operation: .INSERT, sql: "INSERT INTO table(field) value('000-000-0000')")
// do some data operations in this transaction
try t.segEnd(sub)

let s2 = try t.segBeginExternal(host: "perfect.org", name: "my-seg")
// do some external operations in this transaction
try t.segEnd(s2)

Parameters:

  • parentSegmentId: id of parent segment, root segment by default, i.e., NewRelic.ROOT_SEGMENT.
  • name: name to represent segment

Issues

We are transitioning to using JIRA for all bugs and support related issues, therefore the GitHub issues has been disabled.

If you find a mistake, bug, or any other helpful suggestion you'd like to make on the docs please head over to http://jira.perfect.org:8080/servicedesk/customer/portal/1 and raise it.

A comprehensive list of open issues can be found at http://jira.perfect.org:8080/projects/ISS/issues

Further Information

For more information on the Perfect project, please visit perfect.org.

Description

  • Swift Tools 4.0.0
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Dependencies

  • None
Last updated: Sat Oct 19 2024 23:52:53 GMT-0900 (Hawaii-Aleutian Daylight Time)