The tables below describe what the Cluster indicators show. To select a cluster, expand the Cluster menu and select the one you want to examine. If a metric is configurable, you can modify it in Settings.
|
| Indicator | Description | Configurable |
|---|
| Server Hostname | The local hostname of the server as determined InetAddress.getLocalHost().getHostName(). | No |
| 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.
| No |
| Cluster Node ID | The value of the system property org.apache.jackrabbit.core.cluster.node_id. All values are displayed in green. | No |
| Amount of Processors | The number of processors available on the server as indicated by Runtime.getRuntime().availableProcessors(). | Yes |
| Memory Available JVM | Specifies how much memory is available to the Java Virtual Machine (JVM) on the server. | Yes |
| 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. | No |
| Taskmaster | Shows either "true" or "false" as indicated by WatcherThread.isClusterTaskMaster(). All values are displayed in green. | No |
| 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.
| No |
Frontend Requests |
| Indicator | Description | Configurable |
|---|
| Visitors | The number of current unique website visitors (active frontend sessions). | No |
| Active Requests | The number of current frontend active requests. This value can also be see in the Status Administrative Page. | Yes |
| Max Response Time | The maximum response time, in milliseconds, measured in the last completed interval. The default interval is 5 minutes. | No |
| 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). | Yes |
| Departure Rate | How long it takes to fully handle a request (the opposite of "Arrival Rate". | No |
| 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). | Yes |
| 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). | Yes |
Backend Requests |
| Indicator | Description | Configurable |
|---|
| Editors | The number of unique editors registered to this XperienCentral deployment, both active and nonactive. | No |
| Active Requests | The number of current backend active requests. This value can also be see in the Status Administrative Page. | Yes |
| Max Response Time | The maximum response time, in milliseconds, measured in the last completed interval. The default interval is 5 minutes. | No |
| 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). | Yes |
| 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). | Yes |
| 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). | Yes |
Software |
| Indicator | Description | Configurable |
|---|
| Operating System | Shows the value of the system property os.name.
| No |
| Java Virtual Machine | Shows the value of the system property java.vm.name.
| No |
| 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.
| Yes |
| 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. | Yes |
| Application Server Version | The version of the application server. The version can be retrieved from within a servlet using ServletContext.getServerInfo().
| Yes |
Uploads |
| Indicator | Description | Configurable |
|---|
| # Uploads | The number of uploads in the cluster. | No |
| Uploads File Size | The size, in MB, of all uploads in the cluster. | No |
| # Multimedia Uploads | The number of multimedia files in the cluster. | No |
| Multimedia Uploads File Size | The size, in MB, of all multimedia files in the cluster. | No |
Garbage Collection |
| Indicator | Description | Configurable |
|---|
| 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). | No |
| 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). | No |
| Amount of minor GC since 5 minutes | The number er of minor garbage collections executed in the last completed interval (5 minutes by default). | Yes |
| Amount of major GC since 5 minutes | The number of major garbage collections executed in the last completed interval (5 minutes by default). | Yes |
CPU |
| Indicator | Description | Configurable |
|---|
| Active threads | The number of active threads in the JVM. | Yes |
| CPU Overview | The total CPU usage by all processes. | Yes |
| Process CPU | The CPU usage of the current JVM process presented as a percentage of the total available. | Yes |
Frontend Cache |
| Indicator | Description | Configurable |
|---|
| Amount of cache files | The number of files in the frontend cache. | No |
| Cache disk space | The size, in KB, of all cached files. | No |
| Cache ratio | The number of frontend requests served from the cache divided by the number of generated frontend requests (in %). | No |
|
| Indicator | Description | Configurable |
|---|
| Installed RAM | The amount of RAM installed on the server. | Yes |
| Heap allocated to the JVM | The amount of memory allocated to the Java Virtual Machine (JVM). | Yes |
| Used heap memory | The percentage of used heap space compared to the total committed heap space. | Yes |
Disk |
| Indicator | Description | Configurable |
|---|
| Capacity | The size of the hard disk drive on the server. | No |
| Free Space | The amount of free space on the disk. | Yes |
| Used Space (in GB) | The amount of space used on the disk. | No |