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Chapter 5. Monitoring a Container

Abstract

The management console can provide a lot of runtime information about a container including system usage, OSGi details, and specific details for some applications and services.
The Containers page provides you with a basic summary of a container and the runtime resources it is using. To get a full picture of the status of a container you need to access the container's detail page.
To access a container's detail page:
  1. Select Containers from the main menu.
    The Containers page opens.
  2. Select a container from the list.
  3. Click Details.
    The container's detail page opens.

5.1. The Container Details Page
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Abstract

A container's details page provides a low-level view of a container's runtime status. It also provides a way to get details about OSGi packaging and other runtime services.

Overview
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A container's details page provides a great deal of information about the container including:
  • the container's name and status
  • the profiles deployed to the container
  • the container's runtime environment
  • the runtime resource's being used by the container
The details page also provides you access to pages that show details about the OSGi bundles deployed into the container. The details page can also provide access to details about the some of the applications deployed into the container.

Profiles
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Information about the profiles deployed into the container are shown in the upper left of the page.
The profiles are listed in the Profiles table. All of the profiles that are deployed to the container are listed with an X button that can be used to delete the profile from the container.
Above the Profiles table is the Add Profiles button. This button allows you to deploy new profiles to the container.

Runtime environment
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Below the Profiles, table details about the container's runtime are listed. The details include:
  • the container's process ID
  • the JVM in which the container is running
  • the number of classes loaded by the container
  • the amount of CPU time used by the container
  • the container's up time
  • the host's processor architecture
  • the host's operating system
  • the number of available CPU cores
  • the average load on the host's CPU(s)
    Note
    On Windows the JVM returns -1 for the load average.

Container information
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The upper right of the screen displays basic information about the container including:
  • the container's name
  • the container's runtime status
  • the container's provisioning status
Above the container's information are a set of buttons that will display details about specific parts of the container's runtime. These buttons can include:
  • OSGi Details—shows the OSGi bundles and OSGi services deployed to the container
  • Fuse MQ Details—shows detailed information for monitoring the health of a message broker
  • Camel Details—shows detailed information for monitoring the routes running in the container

Container resources
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The lower right of the page displays details about the system resources being used by the container. The monitored resources include:
  • CPU usage
  • the physical memory
  • the swap space
  • the heap memory
  • the file descriptors
  • the threads

Related topics
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Section 5.2, “Viewing a Container's OSGi Details”
Section 5.3, “Monitoring the Message Brokers in a Container”
the section called “Container detail page”
the section called “Container detail page”
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