000035483 - Scheduler offlinetask hung thread in RSA Adaptive Authentication (OnPrem) 7.1 P6

Document created by RSA Customer Support Employee on Oct 20, 2017
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Article Number000035483
Applies ToRSA Product Set: Adaptive Authentication (OnPrem)
RSA Product/Service Type: Adaptive Authentication (OnPrem)
RSA Version/Condition: 7.1 P6
Platform: CentOS
O/S Version: 6
IssueIn the scheduler in WebSphere SystemLog the threadMonitor continuously writes these below messages that threads are hung which is misleading. The message written in SystemOut.log is
"ThreadMonitor W WSVR0605W: Thread"

00000037 ThreadMonitor W WSVR0605W:
Thread "WorkManager.offlineTask : 61" (0000ca7d)
has been active for 1368730 milliseconds and may be hung.

Complete error stack attached.
ResolutionPlease refer to the below link which shows the problem and solution.

Resolving the problem

To avoid the misleading WSVR0605W messages, use the following workaround to disable the thread monitor/thread hang detection on WebSphere Application Server:

  1. From the administrative console, click Servers > Application Servers > server_name.
  2. Under Server Infrastructure, click Administration > Custom Properties.
  3. Click New.
  4. Add the following property to disable the hang detection option:
    • For Name, type: com.ibm.websphere.threadmonitor.interval
    • For Value, enter a value less than or equal to 0.
  5. Click Apply.
  6. Click OK.
  7. Save the changes. Make sure a file synchronization is performed before restarting the servers.
  8. Restart the Application Server for the changes to take effect.

    NOTE: Disabling the thread monitor affects ALL threads on the server, not just the JCA adapter threads. Therefore, hung threads will not be detected at all. There is no option available to filter the activity that will be monitored.

A fix is available for the Email Adapter. For more information, see JR38440: HUNG THREAD MESSAGE IN EMAIL ADAPTER