
This monitoring group contains the following SAP JVM monitors, activated by default:
|
Monitor Unit |
Description |
|---|---|
|
ConcurrentGCRatio |
Returns the ratio of the time spent during garbage collection in comparison with the overall runtime of the JVM over various periods of time. |
|
FullGCWorkTimeRatio |
Returns the ratio of the time spent during full garbage collection in comparison with the actual. |
|
GC Ratio |
Returns the ratio of the time spent during garbage collection in comparison with the overall runtime of the JVM over various periods of time. |
|
GC Spinning Due to Java Heap |
Returns the number of times the concurrent garbage collector spinned due to the permanent generation being above the corresponding threshold over various periods of time. |
|
GC Spinning Due to Perm Generation |
Returns the number of times the concurrent garbage collector spined due to the permanent generation being above the corresponding threshold over various periods of time. |
|
GC State |
Returns numbers indicating the state of the garbage collection. The numbers means respectively: 0 - OK; 1 - warning; 2 - problem alert. |
|
GCWorkTimeRatio |
Returns the ratio of the time spent during garbage collection in comparison with the actual normalized working time of garbage collections over various periods of time. |
|
Java Heap Memory Shortages |
Returns the number of times a memory shortage occurred in the Java heap over various periods of time. |
|
Permanent Generation Memory Shortages |
Returns the number of times a memory shortage occurred in the permanent generation over various periods of time. |
|
SystemLoadAverage |
Returns the load average in the system run queue assigned to the available processors averaged over various periods of time. |
|
System State |
Returns numbers indicating the state of the AS Java. The numbers means respectively: 0 - OK; 1 - warning; 2 - problem alert. |
These monitors are alert based and provide data about the system load and memory. They help to identificate problems via the System Overview monitoring tool.
More information: System Overview