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From Alexey Popov <tank2.a...@gmail.com>
Subject Re: Memory foot print of the ignite nThe background cache eviction process was unable to free [10] percent of the cache for Context
Date Wed, 20 Dec 2017 12:29:41 GMT
Hi Naveen,

Off-heap memory "Off-heap size" works strangely.
There are several tickets here
https://issues.apache.org/jira/browse/IGNITE-6814
https://issues.apache.org/jira/browse/IGNITE-5583
http://apache-ignite-users.70518.x6.nabble.com/Cache-size-in-Memory-td17226.html

You can get an estimation of off-heap memory usage by <pages count> * <page
size> (4k default for 2.3)
 ^-- PageMemory [pages=2043040] 
So, it is about 2043040 * 4096 = 8.3 Gb

Does it look realistic for you data models?

Please note that all Caches are stored off-heap.
On-heap memory used for data transfer, "hot" caches on top of off-heap
caches, etc.

Regarding your error: 
Are you sure you use Ignite here for cache variable?
It looks like org.apache.catalina.webresources.Cache is used instead of
Ignite for your code

res = cache.get(custid).toString(); 

Thank you,
Alexey



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