[jira] [Created] (GEODE-2181) I'm evaluating geode for our product. I started wi...

["Gregory Chase (JIRA)" <ji...@apache.org>]

Gregory Chase created GEODE-2181:
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             Summary: I'm evaluating geode for our product. I started wi...
                 Key: GEODE-2181
                 URL: https://issues.apache.org/jira/browse/GEODE-2181
             Project: Geode
          Issue Type: Improvement
            Reporter: Gregory Chase


I'm evaluating geode for our product. I started with a simple test to check the behavior of geode on low-mem:
- launch a locator and a single server with initial-heap==max-heap==4GB, critical-heap-percentage=90%, eviction-heap-percentage=80%
- I see that gfsh passes in addition the following jvm params to server: -Xms4000m -Xmx4000m -XX:+UseConcMarkSweepGC -XX:CMSInitiatingOccupancyFraction=60 
- create a partitioned region - run client which connects to locator and get the region as PROXY (i.e. no local cache) 
- the client fills the server with elements until it gets ServerOperationException due to low memory (as expected) 
- now, I remove all elements from the region and try run the client again - the client fails on the first put operation (although server is empty!)

My question is: why doesn't the GC collect removed items (I see on server status that currentHeapSize=3151MB, maximumHeapSize=3866)?. I'm expecting to be able to put data in the server if its empty...

Thanks.

*Reporter*: Assaf
*E-mail*: [mailto:assaf_waizman@amat.com]



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