GitHub issue: rabbitmq-server#1582. During parallel cluster formation nodes could run into an exception when inserting seed data (default virtual host, user and permissions). GitHub issue: rabbitmq-server#1556. New ha-promote-on-failure queue mirroring setting to augment already existing ha-promote-on-shutdown. Rabbitmq-server.patch (6.1 KB) - added by seanfarley (Sean Farley) 4 years ago. Update rabbitmq to newest version; should fix compiling errors Download all attachments as:.zip.

The Apache Hadoop software library is a framework that allows for the distributed processing of large data sets across clusters of computers using simple programming models. It is designed to scale up from single servers to thousands of machines, each offering local computation and storage. Rather than rely on hardware to deliver high-availability, the library itself is designed to detect and handle failures at the application layer, so delivering a highly-available service on top of a cluster of computers, each of which may be prone to failures.

To learn more about HADOOP, visit http://hadoop.apache.org/

Flume is a distributed, reliable and available service for efficiently collecting, aggregating, and moving large amounts of log data. It has a simple and flexible architecture based on streaming data flows. It is robust and fault tolerant with tunable reliability mechanisms and many failover and recovery mechanisms. It uses a simple extensible data model that allows for online analytic application.

To learn more about Flume, visit http://flume.apache.org/

Rabbitmq

This tutorial describes how to store data in the Hadoop Distributed File System (HDFS) using a Hortonworks Single Node Data Platform (HDP). The HDP is a Hortonworks Sandbox hosted on a VirtualBox VM. In addition, the Sandbox includes management tools to enable you to view and manage the data.

This tutorial describes how to

  • Download and setup VirtualBox on MAC OSX
  • Import Hortonworks Sandbox as a VM
  • Install Maven to build open source Java packages
  • Setup a RabbitMQ Server as an Event Source for Flume
  • Setup Flume to consume messages from RabbitMQ and sink the data to HDFS
  • Run a simple NodeJS RabbitMQ Producer to generate messages and route them to RabbitMQ
  • Use HADOOP tools to manage data stored in HDFS 1. HCatalog – a table and storage management layer – http://hortonworks.com/hadoop/hcatalog/2. Hive – facilitates querying and managing large datasets – see https://hive.apache.org/ 3. Use the Hortonworks Management tools to manage the data

Download and setup VirtualBox

  • Download VirtualBox for Mac OS X http://www.oracle.com/technetwork/server-storage/virtualbox/downloads/index.html
  • Run the downloaded dmg package
  • Setup network adapters

Import Hortonworks Sandbox 2.1

  • Download the Hortonworks OVA from http://hortonworks.com/products/hortonworks-sandbox/#install
  • Follow the instructions in http://hortonworks.com/wp-content/uploads/2014/04/InstallingHortonworksSandbox2_1MacUsingVB.pdf
  • Start the VirtualBox
  • Logon to VirtualBox from the Terminal Window Fn+Alt+F5 and get its “external” IP Address
  • ssh to the VirtualBox

Install

Start Server Automatically

Enable the Rabbit Management Plugin

Environment variables

Setup an environment variable for the rabbit install and put it on the PATH

Enable remote access to the Management Plugin

Create a virtual host

Enable administration of the Virtual Host from Management Console

Start RabbitMQ as a background process

Test the RabbitMQ Management console

A Flume dataflow consists of configuring a source, a sink and a channel. In this tutorial, the source consists of a RabbitMQ Server and the sink is the HDFS file system. The data flow works as follows

  • The source consumes events delivered to it by RabbitMQ using the RabbitMQ-Flume Plugin
  • When the Flume source receives an event, it stores it into one or more channels. The channel is a passive store that keeps the event until it’s consumed by a Flume sink
  • The sink removes the event from the channel and stores the data in HDFS (via Flume HDFS sink)
  • The source and sink within the given agent run asynchronously with the events staged in the channel.

Install Flume

Install the RabbitMQ-Flume Plugin

Configure Flume to source from Rabbit and sink to HDFS

Setup a Flume source to consumer messages from RabbitMQ and sync the data to HDFS.

edit/create /etc/flume/conf/analytics.conf and enter the following

Start the flume service as a background process

Rabbitmq Server Stop

View the Data

Create a Hive Table to access the HDFS data. The LOCATION value is the path specified in the HDFS sink analytics.sinks.sink_to_hdfs.hdfs.path in $FLUME_HOME/conf/analytics.conf

Use the Hortonworks Management console to view the list of tables, you should now see a table called analytics

Install and run the NodeJS Message Producer

If you do not have NodeJS installed, checkout http://shapeshed.com/setting-up-nodejs-and-npm-on-mac-osx for instructions

On your MAC, checkout the code from git.

Edit etc/vars.env – this script setups ENV variables to connect to the RabbitMQ Server on the Hortonworks Sandbox and sepcifies the queue to be created and the Virtual host to access.

When configured, source the ENV variables as follows

Run the NodeJS script. The script connects to the RabbitMQ Server (specified in the RABBIT_SERVER Environment Variable), creates a queue (specified in the RABBIT_QUEUE Environment Variable) and produces messages.

The Flume service consumes the messages and stores them in HDFS.

View Flume Processing

You can view Flume processing progress by viewing the logs as follows

View the Data

Select the Beeswax Hive (UI) icon in the Hortonworks Management to view the data in the analytics table

Overview

This guide describes how RabbitMQ can be installed and configured manually on Windows. In generalwe recommend using one the more automation-friendly options for Windows when possible.

Install Erlang/OTP

RabbitMQ requires a 64-bit supported version of Erlang for Windows to be installed.Latest binary builds for Windows can be obtained from the Erlang/OTP Version Tree page.

Erlang will appear in the Start Menu,and erl{version}binerl.exe will be in C:Program Files for 64-bit Erlang installations

Important: your system should only have one version of Erlang installed.Please consult the Windows-specific Issues page.

Make Sure ERLANG_HOME is Set

In case there's an existing RabbitMQ installation with the broker running as a service andyou installed an Erlang VM with a different architecture then the service must be uninstalledbefore updating ERLANG_HOME.

Install Rabbitmq-server Mac

Set ERLANG_HOME to where you actually put your Erlang installation, e.g.C:Program Fileserl{version} (full path).The RabbitMQ batch files expect to execute %ERLANG_HOME%binerl.exe.

Go to Start > Settings > Control Panel > System > Advanced > Environment Variables.Create the system environment variable ERLANG_HOMEand set it to the full path of the directory which contains binerl.exe.

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Install RabbitMQ Server

After making sure a supported Erlang version is installed, download rabbitmq-server-windows-3.8.9.zip.

Direct Downloads

DescriptionDownloadSignature
Installer for Windows systems (from GitHub)rabbitmq-server-windows-3.8.9.zipSignature

From the zip file, extract the folder namedrabbitmq_server-3.8.9into C:Program FilesRabbitMQ(or somewhere suitable for application files).

Synchronise the Erlang Cookie

The Erlang cookie is a shared secret used for authentication between RabbitMQ nodes and CLI tools.The value is stored in a file commonly referred to as the Erlang cookie file.

The cookie file used by the service account and the userrunning rabbitmqctl.bat must be synchronised forCLI tools such as rabbitmqctl.bat to function. All nodes in a cluster must have the samecookie value (cookie file contents).

Please see How CLI Tools Authenticate to Nodes (and Nodes to Each Other): the Erlang Cookie for details.

Locating CLI Tools and App Data

CLI tools

Within the rabbitmq_server-3.8.9sbindirectory are some scripts which run commands to control the RabbitMQ server.

The RabbitMQ server can be run as either an application or service (not both).

  • rabbitmq-server.bat starts the broker as an application
  • rabbitmq-service.bat manages the service and starts the broker
  • rabbitmqctl.bat manages a running broker

Log in as an administrator. To see the output, run these from aCommand Promptin the sbin directory.

Note: On Windows Vista (and later) it is necessary toelevate privilege(e.g. right-click on the icon to select Run as Administrator).

Set up the system path so RabbitMQ server and CLI tools from the sbin directorycan be executed without using fully qualified paths.

  • Create a system environment variable (e.g. RABBITMQ_SERVER) for'C:Program FilesRabbitMQrabbitmq_server-3.8.9'.Adjust this if you put rabbitmq_server-3.8.9 elsewhere,or if you upgrade versions.
  • Append the literal string ';%RABBITMQ_SERVER%sbin' to your system path (aka %PATH%).

Now it should be possible to run rabbitmq commands from any (administrator) Command Prompt.

Navigate to rabbitmq_server-3.8.9sbinto run commands if the system path does not contain the RabbitMQ sbindirectory.

Node Data Directory

By default, the RabbitMQ logs and node's data directoryare stored in the current user's Application Data directorye.g. C:Documents and Settings%USERNAME%Application Data orC:Users%USERNAME%AppDataRoaming.

Execute echo %APPDATA% at a Command Promptto find this directory. Alternatively, Start > Run %APPDATA% will open this folder.

A node can be configured to use a different data directoryusing one of these environment variables: RABBITMQ_BASE, RABBITMQ_MNESIA_BASE orRABBITMQ_MNESIA_DIR. Please read the relocation guide for a descriptionof how each of these variables works.

Running RabbitMQ Server as an Application

The application is started by the rabbitmq-server.batscript in sbin.

Customise RabbitMQ Environment Variables

The service will run fine using its default settings. It is possible to customise the RabbitMQ environmentor edit configuration.

Important: after setting environment variables, it is necessary to restart the node.

Start the Broker as an Application

Run the command

This will start a node in the background (not attached to the Command Prompt).

Alternatively, rabbitmq-server.bat can be executed in Windows Explorerto start a node in foreground.

When a node is started, a Command Prompt window opens,displays a short startup banner, indicating that the RabbitMQbroker has been started successfully.

If the node was started without the -detached option,e.g. using Windows Explorer, a second Command Promptwindow will be necessary to control the application using CLI tools.

Important: closing the original Command Prompt windowwill forcefully shut down a server started this way.

Running RabbitMQ Server as a Service

The service will run in the security context of the system accountwithout the need for a user to be logged in on a console.This is normally more appropriate for production use.The server should not be run as aservice and application simultaneously.

The service runs using the rabbitmq-service.bat script in sbin.

Customise RabbitMQ Environment Variables

The service will run fine using its default settings. It is possible to customise the RabbitMQ environmentor edit configuration.

Important: after setting environment variables, it is necessary to reinstall the service.

Install the Service

Install the service by running

A service with the name defined by RABBITMQ_SERVICENAMEshould now appear in the Windows Services control panel(Start > Run services.msc).

Managing the Service

To manage the service (install, remove, start, stop,enable, disable), userabbitmq-service.batcommands. Alternatively, the Windows Services panel(services.msc) can be used to perform some of thesame functions as the service script.

Start the Broker as a Service

To start the broker, execute

If the output from this command is'Service RABBITMQ_SERVICENAME started', then the service was startedsuccessfully.

Confirm the service named RABBITMQ_SERVICENAMEreports a 'Started' status in Services:
Start > Run services.msc.

Upgrading Erlang VM

If you have an existing installation and are planning to upgradethe Erlang VM from a 32bit to a 64bit version then you must uninstallthe broker before upgrading the VM. The installer will not be able to stopor remove a service that was installed with an Erlang VM of a differentarchitecture.

Managing a RabbitMQ Node

Managing the Service

Links to RabbitMQ directories can be found in the Start Menu. Memeo instant backup mac download.

There is also a link to a command prompt window thatwill start in the sbin dir, in the Start Menu. This isthe most convenient way to run the command line tools.Note that CLI tools will have to authenticate to the RabbitMQ node running locally. That involves a shared secret filewhich has to be placed into the correct location for the user.

Stopping a Node

To stop the broker or check its status, userabbitmqctl.bat in sbin (as an administrator).

Checking Node Status

The following command performs the most basic node health check and displays some information aboutthe node if it is running:

See RabbitMQ CLI tools guide and the Monitoring and Health Checks guide for details.

Rabbitmq

Log Files and Management

Server logs are critically important in troubleshooting and root cause analysis.See Logging and File and Directory Location guidesto learn about log file location, log rotation and more.

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Troubleshooting When Running as a Service

In the event that the Erlang VM crashes whilst RabbitMQ is runningas a service, rather than writing the crash dump to the currentdirectory (which doesn't make sense for a service) it is writtento an erl_crash.dump file in the base directory ofthe RabbitMQ server (set by the RABBITMQ_BASE environmentvariable, defaultingto %APPDATA%%RABBITMQ_SERVICENAME% -typically %APPDATA%RabbitMQ otherwise).

Default User Access

The broker creates a user guest with passwordguest. Unconfigured clients will in general use thesecredentials. By default, these credentials can only beused when connecting to the broker as localhost so youwill need to take action before connecting from any othermachine.

See the documentation on access control for information on how to create more users and deletethe guest user.

Port Access

RabbitMQ nodes bind to ports (open server TCP sockets) in order to accept client and CLI tool connections.Other processes and tools such as anti-virus software may prevent RabbitMQ from binding to a port. When that happens,the node will fail to start.

CLI tools, client libraries and RabbitMQ nodes also open connections (client TCP sockets).Firewalls can prevent nodes and CLI tools from communicating with each other.Make sure the following ports are accessible:

  • 4369: epmd, a peer discovery service used by RabbitMQ nodes and CLI tools
  • 5672, 5671: used by AMQP 0-9-1 and 1.0 clients without and with TLS
  • 25672: used for inter-node and CLI tools communication (Erlang distribution server port)and is allocated from a dynamic range (limited to a single port by default,computed as AMQP port + 20000). Unless external connections on these ports are really necessary (e.g.the cluster uses federation or CLI tools are used on machines outside the subnet),these ports should not be publicly exposed. See networking guide for details.
  • 35672-35682: used by CLI tools (Erlang distribution client ports) for communication with nodesand is allocated from a dynamic range (computed as server distribution port + 10000 throughserver distribution port + 10010). See networking guide for details.
  • 15672: HTTP API clients, management UI and rabbitmqadmin(only if the management plugin is enabled)
  • 61613, 61614: STOMP clients without and with TLS (only if the STOMP plugin is enabled)
  • 1883, 8883: (MQTT clients without and with TLS, if the MQTT plugin is enabled
  • 15674: STOMP-over-WebSockets clients (only if the Web STOMP plugin is enabled)
  • 15675: MQTT-over-WebSockets clients (only if the Web MQTT plugin is enabled)

It is possible to configure RabbitMQto use different ports and specific network interfaces.

Windows-specific Issues

We aim to make RabbitMQ a first-class citizen on Windows. However, sometimes there are circumstances beyond ourcontrol. Please consult the Windows-specific Issues page.

Getting Help and Providing Feedback

If you have questions about the contents of this guide orany other topic related to RabbitMQ, don't hesitate to ask themon the RabbitMQ mailing list.

Help Us Improve the Docs <3

If you'd like to contribute an improvement to the site,its source is available on GitHub.Simply fork the repository and submit a pull request. Thank you!

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