What does Atmosphere do in Pega 7.2.2 on Websphere 8.5
All,
We are getting these messages within our System.Out log.
[4/9/17 14:27:14:429 CEST] 00000146 SystemOut O 2017-04-09 14:27:14,428 [ usa30217.unix.corp] [ STANDARD] [ ] [ ] (tmosphere.AtmospherePushEngine) INFO - Async support implementation used by framework: org.atmosphere.container.Servlet30CometSupport
[4/9/17 7:37:00:719 CEST] 00014437 async W com.ibm.ws.webcontainer.async.ListenerHelper _invokeAsyncErrorHandling SRVE8106W: An exception occurred invoking the async listeners.
java.lang.ClassCastException: com.ibm.ws.cache.servlet.CacheProxyRequest incompatible with org.atmosphere.cpr.AtmosphereRequest
at org.atmosphere.container.Servlet30CometSupport$CometListener.onTimeout(Servlet30CometSupport.java:188)
at com.ibm.ws.webcontainer.async.AsyncListenerEntry.invokeOnTimeout(AsyncListenerEntry.java:74)
at com.ibm.ws.webcontainer.async.ListenerHelper._invokeAsyncErrorHandling(ListenerHelper.java:182)
at com.ibm.ws.webcontainer.async.ListenerHelper.invokeAsyncErrorHandling(ListenerHelper.java:129)
at com.ibm.ws.webcontainer.async.AsyncTimeoutRunnable.run(AsyncTimeoutRunnable.java:28)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:483)
at java.util.concurrent.FutureTask.run(FutureTask.java:274)
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:190)
All,
We are getting these messages within our System.Out log.
[4/9/17 14:27:14:429 CEST] 00000146 SystemOut O 2017-04-09 14:27:14,428 [ usa30217.unix.corp] [ STANDARD] [ ] [ ] (tmosphere.AtmospherePushEngine) INFO - Async support implementation used by framework: org.atmosphere.container.Servlet30CometSupport
[4/9/17 7:37:00:719 CEST] 00014437 async W com.ibm.ws.webcontainer.async.ListenerHelper _invokeAsyncErrorHandling SRVE8106W: An exception occurred invoking the async listeners.
java.lang.ClassCastException: com.ibm.ws.cache.servlet.CacheProxyRequest incompatible with org.atmosphere.cpr.AtmosphereRequest
at org.atmosphere.container.Servlet30CometSupport$CometListener.onTimeout(Servlet30CometSupport.java:188)
at com.ibm.ws.webcontainer.async.AsyncListenerEntry.invokeOnTimeout(AsyncListenerEntry.java:74)
at com.ibm.ws.webcontainer.async.ListenerHelper._invokeAsyncErrorHandling(ListenerHelper.java:182)
at com.ibm.ws.webcontainer.async.ListenerHelper.invokeAsyncErrorHandling(ListenerHelper.java:129)
at com.ibm.ws.webcontainer.async.AsyncTimeoutRunnable.run(AsyncTimeoutRunnable.java:28)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:483)
at java.util.concurrent.FutureTask.run(FutureTask.java:274)
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:190)
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1157)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:627)
at java.lang.Thread.run(Thread.java:863)
What is Atmoshere meant for?
Can't find anything on the PDN.
Kind regards,
Arjan Maus
***Updated by moderator: Lochan to add Categories***
Accepted Solution
Updated: 20 Apr 2017 3:50 EDT
Pegasystems Inc.
AU
We compared their instances and found that the setting for "Enable servlet and command caching" (from Webspehere Console > Container Management) was enabled for the instances where this "ClassCastException" was noticed in the logs. Customer is not sure why this was enabled, not mentioned in the PRPC installation document.
Pegasystems Inc.
US
At high level, Atmosphere is a module (based on open source project - see https://github.com/Atmosphere/atmosphere and repackaged by Pega) handling real time notification introduced in 7.2.2 (class in the error stack is from pratmosphere-runtime- Proprietary information hidden.jar). Suggest create a SR for further investigation, looks like there is some issue between atmosphere running in WAS 8.5+
Pegasystems Inc.
IN
Hi Arjan,
Please share the SR# here so that we may track it through this post and update the answer after the SR is resolved!
Thank you,
Ashfiled
US
Hi Arjan,
We are also having the same issue in our applications. Could you please let us know if you have any updates on this issue.
Thanks,
Sreeni.
Accepted Solution
Updated: 20 Apr 2017 3:50 EDT
Pegasystems Inc.
AU
We compared their instances and found that the setting for "Enable servlet and command caching" (from Webspehere Console > Container Management) was enabled for the instances where this "ClassCastException" was noticed in the logs. Customer is not sure why this was enabled, not mentioned in the PRPC installation document.
Pegasystems Inc.
US
While reviewing the corresponding SR associated to this post, I see that SA-36793 AtmosphereRequest ClassCastException invoking Async listeners has been generated as a result. If you have the same question, please refer to this SA.