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https://issues.apache.org/jira/browse/IGNITE-5618?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16068801#comment-16068801
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Pavel Tupitsyn commented on IGNITE-5618:
----------------------------------------

[~dmagda] we are talking about 32-bit process on 64-bit machine. You can have 
all the RAM in the world, but 32-bit process can only support 2-4GB (depending 
on OS). So we get 16 GB of ram on a machine, and 80% of this does not fit into 
32-bit process address space.

> .NET: Ignite fails with OOM on startup under x86 (32 bit) with default 
> configuration
> ------------------------------------------------------------------------------------
>
>                 Key: IGNITE-5618
>                 URL: https://issues.apache.org/jira/browse/IGNITE-5618
>             Project: Ignite
>          Issue Type: Bug
>          Components: platforms
>    Affects Versions: 2.0
>            Reporter: Pavel Tupitsyn
>            Assignee: Pavel Tupitsyn
>            Priority: Blocker
>              Labels: .NET
>             Fix For: 2.1
>
>
> Default MemoryPolicyConfiguration settings do not take process bitness into 
> account. We can't use 80% of RAM under 32-bit mode.
> * Add a suite on TC which runs .NET tests on 32 bits



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