Performance Enhancement
Posted: 07 Apr 2016, 11:46
I was wondering if anyone on this forum has suggestions for boosting the performance of Essential Platform, and can offer any guidance to the problems we are facing.
Background:
We have upgraded to Essential 5x platform, and have repository on Linux server in PostgreSQL database on the same host.
Issue:
We have noticed that once we have high number of entries in the repository:
- Loading the project in Protege takes close to 90+ seconds
- The Import utility hangs after every 50 rows of data import, with a message in tomcat log that reads as follows:
SEVERE: >>org.zkoss.zk.ui.DesktopUnavailableException: Stopped
>> at org.zkoss.zkmax.ui.comet.CometServerPush.activate(CometServerPush.java:294)
>> at org.zkoss.zk.ui.impl.DesktopImpl.activateServerPush(DesktopImpl.java:1395)
>> at org.zkoss.zk.ui.Executions.activate(Executions.java:971)
>> at org.zkoss.zk.ui.Executions.activate(Executions.java:947)
>> at org.zkoss.zk.ui.event.impl.AsyncListenerThread.run(DesktopEventQueue.java:190)
Background:
We have upgraded to Essential 5x platform, and have repository on Linux server in PostgreSQL database on the same host.
Issue:
We have noticed that once we have high number of entries in the repository:
- Loading the project in Protege takes close to 90+ seconds
- The Import utility hangs after every 50 rows of data import, with a message in tomcat log that reads as follows:
SEVERE: >>org.zkoss.zk.ui.DesktopUnavailableException: Stopped
>> at org.zkoss.zkmax.ui.comet.CometServerPush.activate(CometServerPush.java:294)
>> at org.zkoss.zk.ui.impl.DesktopImpl.activateServerPush(DesktopImpl.java:1395)
>> at org.zkoss.zk.ui.Executions.activate(Executions.java:971)
>> at org.zkoss.zk.ui.Executions.activate(Executions.java:947)
>> at org.zkoss.zk.ui.event.impl.AsyncListenerThread.run(DesktopEventQueue.java:190)