Single Node

Single Node displays present detailed node performance metrics for a single node. Use the Single Node displays to perform node utilization analysis.

Node Summary

Cluster	Select a cluster to display.
Detail	View Node Detail display.
Host	Select a host from the drop-down menu.
Location	Select a location from the drop-down menu. Location is a unique identifier for each node and defined as: member_name.machine.rack.site.
Id	The id for the selected node.
Member	The member name for this node.
Machine	The machine name for this node.
Rack	The rack name for this node.
Site	The site name for this node.
Role	The role name for this node.
Process	The process name for this node.
Uni Address	The unicast address. This is the IP address of the node's DatagramSocket for point-to-point communication.
Unicast Port	The unicast port. This is the port of the node's DatagramSocket for point-to-point communication.
CPU Count	Number of CPU cores for the machine this node is running on.
Start Time	The date and time that the selected node joined the cluster.
Cache Data	Cache Name Name of Cache. Tier Front or Back. Objects Number of objects. Units Number of units (typically bytes).
Packet Communication	Sent Cumulative number of packets sent by this node since the node statistics were last reset. Rcvd Cumulative number of packets received by this node since the node statistics were last reset. Resent% Cumulative number of packets resent by this node since the node statistics were last reset. Rptd% Cumulative number of packets repeated by this node since the node statistics were last reset. Send Queue The number of packets currently scheduled for delivery, including packets sent and still awaiting acknowledgment. Packets that do not receive an acknowledgment within the ResendDelay interval are automatically resent.
Memory	Max MB Total memory allocated. Avail MB Total memory available. Used% Percent of allocated memory being used.
Base at Zero	Use zero as the Y axis minimum for all graph traces.
Time Range	Select a time range from the drop down menu varying from 2 Minutes to Last 7 Days, or display All Data. To specify a time range, click Calendar . By default, the time range end point is the current time. To change the time range end point, click Calendar and select a date and time from the calendar or enter the date and time in the text field using the following format: MMM dd, YYYY HH:MM. For example, Aug 21, 2011 12:24 PM. Use the navigation arrows to move forward or backward one time period. NOTE: The time period is determined by your selection from the Time Range drop-down menu. Click Restore to Now to reset the time range end point to the current time.
Sent Fail Rate	Percentage of communication packages on this node that failed and needed to be resent.
Rcvd Fail Rate	Percentage of received communication packages that failed and needed to be repeated.
Mem Used%	Percent of memory used by the node.
CPU%	Percent of CPU used by the node.

Service Trends

Trend graphs showing metrics on a selected node of a selected service. Allows you to visually compare the behavior of metrics over time, for a given node.

Cluster	Select a cluster to display.
Service	Select a service to display.
Host	Select a host to display.
Location	Select a location to display. Location is a unique identifier for each node and defined as: member_name.machine.rack.site.
Base at Zero	Use zero as the Y axis minimum for all graph traces.
Time Range	Select a time range from the drop down menu varying from 2 Minutes to Last 7 Days, or display All Data. To specify a time range, click Calendar . By default, the time range end point is the current time. To change the time range end point, click Calendar and select a date and time from the calendar or enter the date and time in the text field using the following format: MMM dd, YYYY HH:MM. For example, Aug 21, 2011 12:24 PM. Use the navigation arrows to move forward or backward one time period. NOTE: The time period is determined by your selection from the Time Range drop-down menu. Click Restore to Now to reset the time range end point to the current time.
Metrics for Service selected by Location	Trend chart displays the values of labeled Metrics for the selected Location over the specified Time Range. Location is a unique identifier for each node and defined as: member_name.machine.rack.site. CPU% CPU Utilization (as a percent) on the selected Location (for example, node). Requests Number of requests issued by the service in the measured period. Messages The number of messages for the given node in the measured interval. Request Average Duration Average duration (in milliseconds) of an individual request issued by the service since the last time the statistics were reset. Request Pending Count Number of pending requests issued by the service. Task Backlog Size of the backlog queue that holds tasks scheduled to be executed by one of the service threads. Active Threads Number of threads in the service thread pool, not currently idle.

Node Detail

This display presents detailed information about invocation services per node. The data on this display is queried from the Coherence MBeans. NOTE: For details on attributes of these MBeans go to: http://download.oracle.com/otn_hosted_doc/coherence/350/com/tangosol/net/management/Registry.html.

Cluster	Select a cluster to display.
Summary	View Node Summary display.
Host	Select a host.
Location	Select a location. Location is a unique identifier for each node and defined as: member_name.machine.rack.site.
Node MBean Data	This table contains data from the Node MBean for the selected node.
Invocation Service MBean Data	This table contains data from the Invocation Services MBean for the selected node. StatusHA: The high availability status of the service: ENDANGERED: There is potential data loss in the cluster if a node goes offline. NODE-SAFE: There is no risk of data loss in the cluster if a node goes offline (or is taken offline using kill-9). The data is replicated across multiple nodes and remains available in the cluster. MACHINE-SAFE: There is no risk of data loss in the cluster if a machine goes offline (or is taken offline using kill-9). The data is replicated across multiple machines and remains available in the cluster. RACK-SAFE: There is no risk of data loss in the cluster if a rack goes offline (or is taken offline using kill-9). The data is replicated across multiple racks and remains available in the cluster. SITE-SAFE: There is no risk of data loss in the cluster if a site goes offline (or is taken offline using kill-9). The data is replicated across multiple sites and remains available in the cluster.
Cache Service MBean Data	This table contains data from the Cache Service and Node MBeans associated with the selected node, as well as the following data.
Cache MBean Data	This table contains data from the Cache MBeans associated with the selected node.
Storage Manager MBean Data	This table contains data from the Storage Manager MBeans associated with the selected node.

JVM Summary

Runtime, class loader, thread, OS and input arguments. NOTE: Platform MBean information is available at: http://java.sun.com/javase/6/docs/api/java/lang/management/package-summary.html#package_description.

Cluster	Select a cluster to display.
Host	Select a host to display.
Location	Select a location to display. Location is a unique identifier for each node and defined as: member_name.machine.rack.site.
Id	This table contains data from the Node MBean for the selected node.
Runtime	Start Time The date and time that the JVM started. Up Time The uptime of the JVM.
Class Loader	Loaded Classes The number of classes that are currently loaded in the JVM. Unloaded Classes The total number of classes unloaded since the JVM started execution. Total Loaded Classes The total number of classes that have been loaded since the JVM started execution.
Compilation Time	The approximate accumulated elapsed time (in milliseconds) spent in compilation. If multiple threads are used for compilation, then this value is a summation of the approximate time that each thread spent in compilation. NOTE: Compilation Time monitoring may not be supported depending on the platform (for example, a Java virtual machine implementation).
Threads	Live Threads The number of live threads. Daemon Threads The number of live daemon threads. Peak Threads The peak live thread count since the Java virtual machine started or peak was reset.
Operating System	Operating System Name The operating system name. Version The operating system version. Architecture The operating system architecture. Available Processors The number of processors available to the JVM. Percent CPU Percent of CPU used by the JVM. Total Swap Space Size The value of the OperatingSystemMXBean's TotalSwapSpaceSize attribute. Free Swap Space Size The value of the OperatingSystem MXBean's FreeSwapSpaceSize attribute. Total Physical Memory The value of the OperatingSystemMXBean's TotalPhysicalMemorySize attribute Free Physical Memory The value of the OperatingSystemMXBean's FreePhysicalMemorySize attribute Committed Virtual Memory The value of the OperatingSystemMXBean's CommittedVirtualMemorySize attribute
Input Arguments	The list of JVM arguments in the RuntimeMXBean's InputArguments attribute.

JVM Memory Trends

Heap and non-heap memory trends. NOTE: Platform MBean information is available at: http://java.sun.com/javase/6/docs/api/java/lang/management/package-summary.html#package_description.

Cluster	Select a cluster to display.
Host	Select a host to display.
Location	Select a location to display. Location is a unique identifier for each node and defined as: member_name.machine.rack.site.
Id	This table contains data from the Node MBean for the selected node.
Base at Zero	Use zero as the Y axis minimum for all graph traces.
Time Range	Select a time range from the drop down menu varying from 2 Minutes to Last 7 Days, or display All Data. To specify a time range, click Calendar . By default, the time range end point is the current time. To change the time range end point, click Calendar and select a date and time from the calendar or enter the date and time in the text field using the following format: MMM dd, YYYY HH:MM. For example, Aug 21, 2011 12:24 PM. Use the navigation arrows to move forward or backward one time period. NOTE: The time period is determined by your selection from the Time Range drop-down menu. Click Restore to Now to reset the time range end point to the current time.
Heap Memory	Maximum The value of the max field within the MemoryMXBean HeapMemoryUsage attribute. Committed The value of the committed field within the MemoryMXBean HeapMemoryUsage attribute. Used The value of the used field within the MemoryMXBean HeapMemoryUsage attribute. Peak Tenured Used The value of the used field within the TenuredGen MemoryPoolMXBean PeakUsage attribute.
Non-Heap Memory	Maximum The value of the max field within the MemoryMXBean NonHeapMemoryUsage attribute. Committed The value of the committed field within the MemoryMXBean NonHeapMemoryUsage attribute. Used The value of the used field within the MemoryMXBean NonHeapMemoryUsage attribute. Objects Pending Finalization The value of the MemoryMXBean ObjectPendingFinalizationCount attribute. Verbose The value of the MemoryMXBean Verbose attribute.
Garbage Collection	name Name of the Garbage Collector MBean. LastGcInfo.Count The GcThreadCount from the Garbage Collector's LastGcInfo MBean. LastGcInfo.Duration The Duration from the Garbage Collector's LastGcInfo MBean. Operations Run Garbage Collector Executes the MemoryMXBean garbage collection operation, Reset Peak Usage Executes the TenuredGen resetPeakUsage operation.

JVM GC Trends

Memory usage before and after garbage collection and Garbage Collector activity. NOTE: Platform MBean information is available at: http://java.sun.com/javase/6/docs/api/java/lang/management/package-summary.html#package_description.

Cluster	Select a cluster to display.
Host	Select a host to display.
Location	Select a location to display. Location is a unique identifier for each node and defined as: member_name.machine.rack.site.
Id	This table contains data from the Node MBean for the selected node.
Garbage Collector	Select a Garbage Collector.
Max	Select to add the Max trace (graph will rescale if necessary).
Committed	Select to add the Committed trace (graph will rescale if necessary).
Base at Zero	Use zero as the Y axis minimum for all graph traces.
Time Range	Select a time range from the drop down menu varying from 2 Minutes to Last 7 Days, or display All Data. To specify a time range, click Calendar . By default, the time range end point is the current time. To change the time range end point, click Calendar and select a date and time from the calendar or enter the date and time in the text field using the following format: MMM dd, YYYY HH:MM. For example, Aug 21, 2011 12:24 PM. Use the navigation arrows to move forward or backward one time period. NOTE: The time period is determined by your selection from the Time Range drop-down menu. Click Restore to Now to reset the time range end point to the current time.
Memory Usage (in MB) Before and After Garbage Collection	Max The maximum amount of memory used by the node or nodes. Committed The amount of memory guaranteed to be available for use by the JVM. Used - Before The amount of memory used by the node or nodes before garbage collection. Used - After The amount of memory used by the node or nodes after garbage collection. Duration The duration, in seconds, that memory is used by the node or nodes. Duty Cycle Percent of time spent by the node or nodes in garbage collection.