Hi Akila, Yah..I think that we can share a common thread pool per monitor. AFAIK, there was no specific reason to maintain thread pool per monitor object.
@Gayan, Do you aware of any particular reason why we did like that? All the monitors need one thread allocated for periodic execution. Other than that, based on child events, the particular processing will be executed as thread. So i believe that we can share the thread pool and make it to 100 by default. May be we can increase the thread pool size proportional to the number of nodes in the application. We can come up with that value for the thread pool size. Thanks, Reka On Sat, Nov 21, 2015 at 1:20 PM, Akila Ravihansa Perera <raviha...@wso2.com> wrote: > Hi, > > I noticed that ExecutorService objects are created in the constructors of > ClusterMonitor, ApplicationMonitor, GroupMonitor, ParentComponentMonitor > classes. These thread pools' size is 100 [1, 2, 3, 4]. > > Any idea why thread pools are created per monitor object? Is it not > possible to share a common thread pool as per the current design? > > Stratos server thread count goes beyond 1500 when deploying 2 or 3 apps. > And it keeps growing proportional to the deployed app count. This is a very > high resource usage. > > [1] > https://github.com/apache/stratos/blob/stratos-4.1.x/components/org.apache.stratos.autoscaler/src/main/java/org/apache/stratos/autoscaler/monitor/cluster/ClusterMonitor.java#L108 > > [2] > https://github.com/apache/stratos/blob/stratos-4.1.x/components/org.apache.stratos.autoscaler/src/main/java/org/apache/stratos/autoscaler/monitor/component/ApplicationMonitor.java#L82 > > [3] > https://github.com/apache/stratos/blob/stratos-4.1.x/components/org.apache.stratos.autoscaler/src/main/java/org/apache/stratos/autoscaler/monitor/component/GroupMonitor.java#L88 > > [4] > https://github.com/apache/stratos/blob/stratos-4.1.x/components/org.apache.stratos.autoscaler/src/main/java/org/apache/stratos/autoscaler/monitor/component/ParentComponentMonitor.java#L112 > > Thanks. > > -- > Akila Ravihansa Perera > WSO2 Inc.; http://wso2.com/ > > Blog: http://ravihansa3000.blogspot.com > -- Reka Thirunavukkarasu Senior Software Engineer, WSO2, Inc.:http://wso2.com, Mobile: +94776442007
