Cluster

Cluster Node Information

Server Hostname

The local hostname of the server as determined InetAddress.getLocalHost().getHostName().

Server MAC Address

The MAC address of the network interface handling outbound HTTP/HTTPS traffic. See nl.gx.ps.systemrepair.utils.Util.getMACAddress in the System Consistency Checker reusable.

Cluster Node ID

The value of the system property org.apache.jackrabbit.core.cluster.node_id.  All values are displayed in green.

Amount of Processors

The number of processors available on the server as indicated by Runtime.getRuntime().availableProcessors().

Memory Available JVM

Specifies how much memory is available to the Java Virtual Machine (JVM) on the server.

Server Mode

Shows either "backend" or "frontend" depending on the value of Config.isReadOnly(). If this is true, "frontend" is returned, otherwise "backend" is returned. All values are displayed in green.

Taskmaster

Shows either "true" or "false" as indicated by WatcherThread.isClusterTaskMaster().  All values are displayed in green.

Server Up Time

The date and time the server was started for the last time. For example:

Server up since Mon Apr 08 11:22:13 CEST 2019

All values are displayed in green. This timestamp can also be seen in the Status Administrative Page.

Frontend Requests

Visitors

The number of current unique website visitors (active frontend sessions).

Active Requests

The number of current frontend active requests. This value can also be see in the Status Administrative Page.

Max Response Time

The maximum response time, in milliseconds, measured in the last completed interval. The default interval is 5 minutes.

Average Response Time

The average time, in milliseconds, it took to handle a frontend request, measured over the last completed interval (five minutes by default).

Departure Rate

How long it takes to fully handle a request (the opposite of "Arrival Rate".

Client Errors

The number of 4xx HTML status codes returned as a response to frontend requests in the last completed interval (15 minutes by default).

Server Errors

The number of 5xx HTML status codes returned as a response to frontend requests in the last completed interval (15 minutes by default).

Backend Requests

Editors

The number of unique editors registered to this XperienCentral deployment, both active and nonactive.

Active Requests

The number of current backend active requests. This value can also be see in the Status Administrative Page.

Max Response Time

The maximum response time, in milliseconds, measured in the last completed interval. The default interval is 5 minutes.

Average Response Time

The average time, in milliseconds, the handling of a backend request took, measured over the last completed interval (5 minutes by default).

Traffic Queue

Indicates the balance of traffic in the queue.

Client Errors

The number of 4xx HTML status codes returned as a response to backend requests in the last completed interval (15 minutes by default).

Server Errors

The number of 5xx HTML status codes returned as a response to backend requests in the last completed interval (15 minutes by default).

Software

Operating System

Shows the value of the system property os.name.

Java Virtual Machine

Shows the value of the system property java.vm.name.

Java Version

Shows the value of the system property java.version. The value has a status of orange or red when the Java versions are outdated. Note that new Java versions are released every now and then and it is sometimes difficult to tell what latest available version available is.

Application Server Name

Shows the name of the application server. The name can be retrieved from within a servlet using ServletContext.getServerInfo(). You need to implement a servlet in order to retrieve it. This retrieves both the name and version number. Boundaries indicate the supported application servers Tomcat, JBoss and WebSphere.

Application Server Version

The version of the application server. The version can be retrieved from within a servlet using ServletContext.getServerInfo().

Uploads

#  Uploads

The number of uploads in the cluster.

Uploads File Size

The size, in MB, of all uploads in the cluster.

#  Multimedia Uploads

The number of multimedia files in the cluster.

Multimedia Uploads File Size

The size, in MB, of all multimedia files in the cluster.

Garbage Collection

Average space cleared by minor GC since 5 minutes

The average space, in MB, cleared by minor garbage collections in the last interval (5 minutes by default).

Average space cleared by major GC since 5 minutes

The average space, in MB, cleared by major garbage collections in the last interval (5 minutes by default).

Amount of minor GC since 5 minutes

The number er of minor garbage collections executed in the last completed interval (5 minutes by default).

Amount of major GC since 5 minutes

The number of major garbage collections executed in the last completed interval (5 minutes by default).

CPU

Active threads

The number of active threads in the JVM.

CPU Overview

The total CPU usage by all processes.

Process CPU

The CPU usage of the current JVM process presented as a percentage of the total available.

Frontend Cache

Amount of cache files

The number of files in the frontend cache.

Cache disk space

The size, in KB, of all cached files.

Cache ratio

The number of frontend requests served from the cache divided by the number of generated frontend requests (in %).

Memory Information

Installed RAM

The amount of RAM installed on the server.

Heap allocated to the JVM

The amount of memory allocated to the Java Virtual Machine (JVM).

Used heap memory

The percentage of used heap space compared to the total committed heap space.

Disk

Capacity

The size of the hard disk drive on the server.

Free Space

The amount of free space on the disk.

Used Space (in GB)

The amount of space used on the disk.