Storm Owner Resources Test

This test monitors the resources utilized by the users (owners) that includes total number of topologies, executors, workers and tasks completed by the owners in the target Apache Storm. Using this test, administrators would be able to identify the number of used CPU cores, the total memory used by the CPU and the heap/off-heap memory assigned to the owners. Any abnormal condition in the resource usage will alert the administrators to take preventive action against the abnormality.

Target of the test : Apache Storm

Agent deploying the test : An internal/remote agent

Outputs of the test : One set of results for each owner (user) in the target Apache Storm.

Configurable parameters for the test
Parameter	Description
Test period	How often should the test be executed.
Host	The IP address of the target server that is being monitored.
Port	The port number through which the Apache Storm communicates. The default port is 8080.
SSL	By default, the SSL flag is set to No, indicating that the target Apache Storm is not SSL-enabled by default. To enable the test to connect to an SSL-enabled Apache Storm, set the SSL flag to Yes.

Measurements made by the test
Measurement	Description	Measurement Unit	Interpretation
Total topologies	Indicates the total number of topologies used by this owner.	Number
Total executors	Indicates the total number of executors used by this owner.	Number
Total workers	Indicates the total number of worker nodes used by this owner.	Number
Total tasks	Indicates the total number of tasks completed by this owner.	Number	A very high value is required for this measure.
Total requested memory	Indicates the total size of memory requested by this owner.	MB
Total memory usage	Indicates the total size of memory used by this owner.	MB	A very low value is required for this measure.
Total requested CPU core	Indicates the total number of CPU cores requested by this owner.	Number
Total CPU core usage	Indicates the total number of CPU cores used by this owner.	Number	A very low value is required for this measure.
Memory guarantee	Indicates the size of memory guaranteed for this owner.	MB
Memory remaining guarantee	Indicates the size of memory remain guaranteed for this owner.	MB
CPU core guarantee	Indicates the number of CPU cores guaranteed for this owner.	Number	Reservation specifies the guaranteed reservation for CPU cores. The Apache Storm server will execute a comfortable data processing only if the CPU and memory reservation is available.
CPU core remaining guarantee	Indicates the number of CPU cores remain guaranteed for this owner.	Number
Isolated nodes	Indicates the number of isolated nodes for this owner.	Number
Total Requested on heap memory	Indicates the total size of heap memory requested by this owner.	MB
Total assigned on heap memory	Indicates the total size of heap memory assigned to this owner.	MB	As a rule of thumb, there should be enough heap memory to address data processing. If the heap memory is high, then it leads to garbage collection.
Total requested off heap memory	Indicates the total size of off-heap memory requested by this owner.	MB
Total assigned off heap memory	Indicates the total size of off-heap memory assigned to this owner.	MB	If there is no off -heap memory, then you will be unable to perform the data processing. To avoid this, it would be good practice to allocate adequate off-heap memory.