Java Virtual Machines (JVM)

The fields in the JVM data model describe generic Java server platforms.

Note: A dataset is a component of a data model. In versions of the Splunk platform prior to version 6.5.0, these were referred to as data model objects.

Tags used with JVM event datasets

The following tags act as constraints to identify your events as being relevant to this data model. For more information, see How to use these reference tables.

Dataset name	Tag name
JVM	jvm
|____ Threading	threading
|____ Runtime	runtime
|____ OS	os
|____ Compilation	compilation
|____ Classloading	classloading
|____ Memory	memory

Fields for JVM event datasets

The following table lists the extracted and calculated fields for the event datasets in the model. Note that it does not include any inherited fields. For more information, see How to use these reference tables.

Dataset name	Field name	Data type	Description	Abbreviated list of example values
JVM	jvm_description	string	A description field provided in some data sources.
JVM	tag	string	This automatically generated field is used to access tags from within datamodels. Add-on builders do not need to populate it.
Threading	cm_enabled	boolean	Indicates whether thread contention monitoring is enabled.	true, false, 1, 0
Threading	cm_supported	boolean	Indicates whether the JVM supports thread contention monitoring.	true, false, 1, 0
Threading	cpu_time_enabled	boolean	Indicates whether thread CPU time measurement is enabled.	true, false, 1, 0
Threading	cpu_time_supported	boolean	Indicates whether the Java virtual machine supports CPU time measurement for the current thread.	true, false, 1, 0
Threading	current_cpu_time	number	CPU-space time taken by the JVM, in seconds.
Threading	current_user_time	number	User-space time taken by the JVM, in seconds.
Threading	daemon_thread_count	number	The JVM's current daemon count.
Threading	omu_supported	boolean	Indicates whether the JVM supports monitoring of object monitor usage.	true, false, 1, 0
Threading	peak_thread_count	number	The JVM's peak thread count.
Threading	synch_supported	boolean	Indicates whether the JVM supports monitoring of ownable synchronizer usage.	true, false, 1, 0
Threading	thread_count	number	The JVM's current thread count.
Threading	threads_started	number	The total number of threads started in the JVM.
Runtime	process_name	string	Process name of the JVM process.
Runtime	start_time	timestamp	Start time of the JVM process.
Runtime	uptime	number	Uptime of the JVM process, in seconds.
Runtime	vendor_product	string	The JVM product or service. This field can be automatically populated by the the vendor and product fields in your raw data.
Runtime	version	string	Version of the JVM.
OS	committed_memory	number	Amount of memory committed to the JVM, in bytes.
OS	cpu_time	number	Amount of CPU time taken by the JVM, in seconds.
OS	free_physical_memory	number	Amount of free physical memory remaining to the JVM, in bytes.
OS	free_swap	number	Amount of free swap memory remaining to the JVM, in bytes.
OS	max_file_descriptors	number	Maximum file descriptors available to the JVM.
OS	open_file_descriptors	number	Number of file descriptors opened by the JVM.
OS	os	string	OS that the JVM is running on.
OS	os_architecture	string	OS architecture that the JVM is running on.
OS	os_version	string	OS version that the JVM is running on.
OS	physical_memory	number	Physical memory available to the OS that the JVM is running on, in bytes.
OS	swap_space	number	Swap memory space available to the OS that the JVM is running on, in bytes.
OS	system_load	number	System load of the OS that the JVM is running on.
OS	total_processors	number	Total processor cores available to the OS that the JVM is running on.
Compilation	compilation_time	number	Time taken by JIT compilation, in seconds.
Classloading	current_loaded	number	The current count of classes loaded in the JVM.
Classloading	total_loaded	number	The total count of classes loaded in the JVM.
Classloading	total_unloaded	number	The total count of classes unloaded from the JVM.
Memory	heap_committed	number	Committed amount of heap memory used by the JVM, in bytes.
Memory	heap_initial	number	Initial amount of heap memory used by the JVM, in bytes.
Memory	heap_max	number	Maximum amount of heap memory used by the JVM, in bytes.
Memory	heap_used	number	Heap memory used by the JVM, in bytes.
Memory	non_heap_committed	number	Committed amount of non-heap memory used by the JVM, in bytes.
Memory	non_heap_initial	number	Initial amount of non-heap memory used by the JVM, in bytes.
Memory	non_heap_max	number	Maximum amount of non-heap memory used by the JVM, in bytes.
Memory	non_heap_used	number	Non-heap memory used by the JVM, in bytes.
Memory	objects_pending	number	Number of objects pending in the JVM, in bytes.