Re: [Engine-devel] Java process increasing resident memory

On 01/29/2013 10:27 AM, navin p wrote: > > Hi, > > I wrote this sample code and the resident memory of the process is > > increasing gradually over time. What could be the reason ? I don't see > > any obvious leaks in my program. Could it be that the API is not > > freeing/deleting memory ? By monitoring the program, it seems that the failure is due to constant threads creation by invoking the "new API()" call: Exception in thread "main" java.lang.OutOfMemoryError: unable to create new native thread at java.lang.Thread.start0(Native Method) at java.lang.Thread.start(Thread.java:691) at org.ovirt.engine.sdk.web.ConnectionsPoolBuilder.createPoolingClientConnectionManager(ConnectionsPoolBuilder.java:182) at org.ovirt.engine.sdk.web.ConnectionsPoolBuilder.createDefaultHttpClient(ConnectionsPoolBuilder.java:160) at org.ovirt.engine.sdk.web.ConnectionsPoolBuilder.build(ConnectionsPoolBuilder.java:234) at org.ovirt.engine.sdk.Api.<init>(Api.java:82) at collectHosts.main(collectHosts.java:102) By pulling the API instantiation outside of the loop, problem solved, since only a single thread is created to monitor the idle/expired connections.

Michael, wouldn't you suggest adding some sort of API.shutdown() method in order to release resources used by it including the connection monitor and any other live connections if exists?