UVMS does not stop normally and needs to be killed

Document ID : KB000087299
Last Modified Date : 14/04/2018
Show Technical Document Details
Issue:
Error Message :
|ERROR| (N)io monitoring thread | com.orsyp.central.server.CentralServerAdapter | A request was rejected because UVMS main pool is full
java.util.concurrent.RejectedExecutionException: Task com.orsyp.central.server.CentralServerAdapter$1@3ccaedd5 rejected from java.util.concurrent.ThreadPoolExecutor@6eaa5b2a[Shutting down, pool size = 2, active threads = 2, queued tasks = 0, completed tasks = 14884551]
at java.util.concurrent.ThreadPoolExecutor$AbortPolicy.rejectedExecution(ThreadPoolExecutor.java:2047)
at java.util.concurrent.ThreadPoolExecutor.reject(ThreadPoolExecutor.java:823)
at java.util.concurrent.ThreadPoolExecutor.execute(ThreadPoolExecutor.java:1369)
at com.orsyp.central.server.CentralServerAdapter.onReadDataAvailable(CentralServerAdapter.java:260)
at com.orsyp.central.server.IOMonitoringPool.run(IOMonitoringPool.java:120)
at java.lang.Thread.run(Thread.java:745)
|ERROR| request-worker-10967 | com.orsyp.requestprocessor.UvmsRequestProcessor | Cannot send response to client! Invoke flush on output stream failed
java.nio.channels.ClosedChannelException

When a user attempts to stop the UVMS server via the command unistopms, the UVMS does not stop normally and errors similar to those above appear in the uvserver.log file.

If the UVMS runs on Windows, the associated service remains in a status of Stopping.

In order to restore the service, the associated Java process must be killed manually or wait for the 30 minutes timeout to take effect.


 
Environment:
OS: All
OS Version: N/A
Cause:
Cause type:
Defect
Root Cause: The UVMS waits for all its threads to complete normally.
This can be an issue if the "Monitoring of Dollar Universe Nodes 5.x" service does not stop properly as it has a timeout of 30 minutes.
Resolution:
Update to a fix version listed below or a newer version if available.

The solution has reduced the timeout of v5 monitoring thread from 30 minutes to 2 minutes.

Fix Status: Released

Fix Version(s):
Component(s): Univiewer Management Server

Dollar Universe 6.8.21 - Available
Additional Information:
Workaround :
Deactivate the Monitoring of v5 nodes (node settings / Option Services / Enable the Monitoring of Dollar Universe Nodes 5.x).