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5.3. Monitoring the Message Brokers in a Container

Abstract

The broker details page allows you to monitor all of the brokers deployed into a container.
The broker details page for a container allows you to monitor the brokers that are deployed into a container. The information about the brokers is broken down into five discreet pages:
  • the broker summary page
  • the network connector details page
  • the queue details page
  • the topic details page
  • the subscription details page
The broker summary page is the main page for monitoring the brokers. The details pages are available when a broker is selected from the list. The pages that become available depend on the broker's configuration.

5.3.1. Viewing a Summary of the Brokers
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Abstract

The broker summary page list all of the brokers deployed into a container and an overview of its health.

Overview
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The broker details page for a container is the main page for monitoring the brokers. It lists all of the message brokers deployed in the container. In addition it will show basic information about a selected broker instance. From this page you can drill down into pages that provide more detailed information about any of the brokers.

The broker list
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The list of brokers shows the following details:
  • the name of the broker
  • the number of producers connected to the broker
  • the number of messages posted to destinations on the broker
  • the number of consumers connected to the broker
  • the number of messages consumed by clients connected the broker

Individual broker information
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Selecting one of the brokers from the list shows additional details about the selected broker including:
  • the version of message broker
  • the URL clients can use to connect to the broker
  • the amount of system memory allocated to the broker
  • the percentage of the allocated system memory used by the broker
  • the space allocated for the persistence store
  • the percentage of the allocated space used by the persistence store
  • the location of the broker's data directory

Drilling down
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When a broker is selected from the list, any of the following buttons may appear:
  • Network Connectors—opens a new page containing details about the network connectors configured on the broker
  • Queues—opens a new page containing details about the queues managed by the broker
  • Topics—opens a new page containing details about the topics managed by the broker
  • Active/Inactive Subscriptions—opens a new page containing details about the subscriptions being managed by the broker

Related topics
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Section 5.3.2, “Monitoring a Message Broker's Queues”
Section 5.3.3, “Monitoring a Message Broker's Topics”

5.3.2. Monitoring a Message Broker's Queues
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Abstract

The queue details page provides statistics about the health of the message queues being managed by a broker.

Overview
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A broker's queue details page lists all of the queues managed by a broker. For each broker in the list it will also display detailed metrics for the queue.

Queue list
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The left hand list shows all of the queues managed by the broker. In addition to the queue's name, the list displays the following information:
  • the number of producers attached to the queue
  • the number of messages sent to the queue
  • the number of consumers attached to the queue
  • the number of messages consumed from the queue

Queue details
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Selecting one of the queues from the list will display additional details on the right side of the page. These details include:
  • the amount of memory allocated for the queue
  • the percentage of the allocated memory in use
  • the maximum amount of time, in milliseconds, a message stayed on the queue
  • the minimum amount of time, in milliseconds, a message stayed on the queue
  • the average amount of time, in milliseconds, a message stayed on the queue
  • the number of messages in the queue that have been consumed, but not acknowledged
  • the number of messages that have been dispatched to, but not acknowledged, by consumers
  • the amount of memory allocated to the queue's cursor
  • the percentage of the allocated memory in use by the cursor
  • the status of the cursor
  • the number of messages in the cursor
  • if message are being buffered
  • if message cashing is enabled
  • if producer flow control is active

5.3.3. Monitoring a Message Broker's Topics
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Abstract

The topic details page provides statistics about the health of the message topics being managed by a broker.

Overview
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A broker's queue details page lists all of the queues managed by a broker. For each broker in the list it will also display detailed metrics for the queue.

Topic list
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The left hand list shows all of the topics managed by the broker.

Topic details
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Selecting one of the topics from the list will display additional details on the right of the page. These details include:
  • the amount of memory allocated for the topic
  • the percentage of the allocated memory in use
  • the maximum amount of time, in milliseconds, a message stayed on the topic
  • the minimum amount of time, in milliseconds, a message stayed on the topic
  • the average amount of time, in milliseconds, a message stayed on the topic
  • the number of messages published to the topic
  • the number of messages consumed from the topic
  • the number of messages in the topic that have been consumed, but not acknowledged
  • the number of messages that have been dispatched to, but not acknowledged, by consumers
  • the maximum number of messages that can be paged
  • if message caching enabled
  • if producer flow control is active

5.3.4. Monitoring a Message Broker's Subscriptions
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Abstract

The subscription details page provides statistics about the health of the message topics being managed by a broker.

Overview
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The subscription details for a broker are broken up according to if the subscription is currently active. The broker details page will have separate buttons for active subscriptions and inactive subscriptions.
A broker's subscription details page lists all of the subscriptions managed by a broker. For each broker in the list it will also display detailed metrics for the subscription.

Topic list
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The left hand list shows subscriptions managed by the broker.

Topic details
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Selecting one of the subscriptions from the list will display additional details on the right of the page. These details include:
  • the client ID used when the subscription was created
  • the connection ID
  • the subscription's ID
  • the session ID of the consumer if it is active
  • the number of messages that have been consumed
  • the number of messages currently being actively pushed to the consumer
  • the number of messages waiting in the pending queue to be consumed
  • the number of messages waiting in the dispatch queue to be consumed
  • the number of messages that have been dispatched to, but not acknowledged, by the consumer
  • the total number of messages that have been dispatched to the consumer
  • the amount of memory allocated to the queue's cursor
  • the percentage of the allocated memory in use by the cursor
  • the status of the cursor
  • the number of messages in the cursor
  • if the consumer will try to recover all of the messages it missed due to a broker failure
  • if the consumer is considered slow by the broker
  • if locally set messages are filtered out
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