I am not sure if GC collection can be controlled. One possible way to work around this is to shut down the server and restart it.
Also you may want to try offheap region to cope this issue? Regards, Eric On Tue, Dec 13, 2016 at 11:02 AM, <[email protected]> wrote: > Hi, > > > > I am facing some issues with geode memory/resource management. > > I have simple environment with a single locator and a single server, both > are launched via gfsh. > > The server is started with initial-heap=max-heap=4GBand with > critical-heap-percentage=70%. > > I also created a single region of type partition using gfsh. > > > > In addition, I created a simple client application (client-server > topology, accessing the region via ClientCache PROXY). The client simply > iteratively put data elements (of 100MB each) into the region. Upon putting > total size of ~70% of 4GB, I get exception on client side which tells the > server is working at low memory as expected – so far so good. > > While observing the server metrics (using show metrics) I see that the > server holds data entries as expected and the heap usage and total heap > size are fine too. > > > > Now, I’m removing all elements from the region – the server metrics after > this operation shows that the elements count is 0 (i.e. the server is > empty) but still heap usage is high (probably because GC didn’t collect > freed items). That’s shouldn’t bother me, but the problem is if I’m trying > to put additional elements into the region now I still get the exception on > client. > > Although the server is empty the client can’t put items into it and this > is very problematic from user point of view. > > > > I tried to play with GC flags, change GC to G1 but with no success. I > can’t control GC collection – having an idle empty server with no way to > add elements to it. > > > > What am I missing here? Is there some other configuration I should follow? > > > > Thanks. > > > > Assaf Waizman > > SW Architect | Process Diagnostics and Control | Applied Materials > 9 Oppenheimer Street, Rehovot, 76705. Israel. > Office +972.8.948.8661 | Mobile +972.54.80.10.799 | Fax +972.8.948.8848 >
