[infinispan-dev] Memory consumption of org.infinispan.marshall.core.JBossMarshaller

[Galder Zamarreño]

Those IdentityIntMap are caches meant to speed up serialization if the same objects or types are marshalled again. It's normal for them to be populated as marshalling operations are executed. We don't currently have a way to clear these caches.

Cheers,
--
Galder Zamarreño
Infinispan, Red Hat

> On 22 Nov 2015, at 15:00, Christian Beikov <christian at sweazer.com> wrote:
> 
> Hello,
> 
> In a recent heap dump analysis I found that 
> org.infinispan.marshall.core.JBossMarshaller consumes a lot of 
> memory(about 46 MB) that seems to be unused.
> This is due to PerThreadInstanceHolder having ExtendedRiverMarshaller 
> objects that contain big IdentityIntMap objects. Some of those 
> IdentityIntMap instances have a size of 2 million entries, but most of 
> them have sizes of a few 100 thousands.
> When I look into these IdentityIntMap instances, it seems that the 
> entries are all unused.
> 
> Is that kind of memory consumption expected or does that indicate a 
> possibly wrong configuration?
> 
> I am using Infinispan 7.2.4.Final on Wildfly 9.0.1.Final.
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