WebSphere Liberty Thread Pools Test

By continuously monitoring the thread pools of the IBM WebSphere Liberty server, administrators can figure out the number of active threads in each thread pool and the size of the thread pool. Using this test, administrators can determine the thread pool containing the maximum number of active threads.

Target of the test : An IBM WebSphere Liberty

Agent deploying the test : An internal agent

Outputs of the test : One set of results for each thread pool on the target IBM WebSphere Liberty server being monitored.

Configurable parameters for the test
Parameters	Description
Test Period	How often should the test be executed.
Host	The host for which the test is to be configured.
Port	The port number at which the specified host listens.
Service URL Path	For the eG agent to collect metrics from the target IBM WebSphere Liberty server, the local connector should be enabled on the target server. Once the connector is enabled, a com.ibm.ws.jmx.local.address file will be created in the ${server.output.dir}/logs/state folder. The eG agent uses this file to connect to the target server and collect the required metrics from it. Therefore, specify the exact path to this file in the Service URL text box. For example, in case of Windows environments, the Service URL Path can be C:\wlp\usr\servers\server1\logs\state and in case of Linux environments, the Service URL Path can be /opt/wlp/ur/servers/server1/logs/state.

Measurements made by the test
Measurement	Description	Measurement Unit	Interpretation
Active threads	Indicates the number of threads in this thread pool that are currently active in servicing the requests.	Number	Comparing the value of this measure across the thread pools helps administrators identify the thread pool containing the maximum number of active threads. If the value of this measure is equal to the value of the Pool Size measure, then, it indicates that the thread pool is busy servicing the requests and new requests have to wait for a while till the threads are released. In such circumstances, administrators may consider increasing the size of the thread pool.
Pool size	Indicates the number of threads that are currently available in this thread pool.	Number