We have radom problems in saving document. When we click on save we have randomly the following error
"Unable to communicate with server. Saving is not possible at the moment".
But if we repeat the operation then from time to time saving works and document is saved
Synchonicity is off. We do not use it.
the following exception:
2019-10-09 17:14:48,301 ERROR [http-nio-8090-exec-3] [engine.jdbc.spi.SqlExceptionHelper] logExceptions Duplicate entry '63275010' for key 'PRIMARY'
-- referer: http://confluence.xxxx.yyy/pages/editpage.action | url: /rest/api/content/60719137 | traceId: 4f550bfd9fa6dcd3 | userName: vz01
2019-10-09 17:14:48,305 ERROR [http-nio-8090-exec-3] [atlassian.confluence.event.ConfluenceEventDispatcher] run There was an exception thrown trying to dispatch event [com.atlassian.confluence.event.events.conten
t.mail.notification.ContentNotificationAddedEvent[source=com.atlassian.confluence.mail.notification.DefaultNotificationManager@2aec889]] from the invoker [SingleParameterMethodListenerInvoker{method=public void c
om.atlassian.confluence.contributors.listeners.NotificationEventListener.onEvent(com.atlassian.confluence.event.events.content.mail.notification.ContentNotificationEvent), listener=com.atlassian.confluence.contri
butors.listeners.NotificationEventListener@1bedfdf6} (timed)]
-- referer: http://confluence.xxxx.yyy/pages/editpage.action | url: /rest/api/content/60719137 | traceId: 4f550bfd9fa6dcd3 | userName: vz01
java.lang.RuntimeException: Failed to add entry to queue. Listener: com.atlassian.confluence.contributors.listeners.NotificationEventListener event: com.atlassian.confluence.event.events.content.mail.notification
.ContentNotificationAddedEvent
at at com.atlassian.event.internal.SingleParameterMethodListenerInvoker.invoke(SingleParameterMethodListenerInvoker.java:57)
at com.atlassian.confluence.event.ConfluenceListenerHandlersConfiguration$TimedListenerInvoker.invoke(ConfluenceListenerHandlersConfiguration.java:96)
at com.atlassian.confluence.event.ConfluenceEventDispatcher$VCacheRequestContextRunnableFactory$1.lambda$run$0(ConfluenceEventDispatcher.java:93)
....
Any idea about which problem could be ?