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From "Pavel Tupitsyn (JIRA)" <j...@apache.org>
Subject [jira] [Comment Edited] (IGNITE-6182) Change default max memory size from 80% to 20%
Date Wed, 30 Aug 2017 10:51:01 GMT

    [ https://issues.apache.org/jira/browse/IGNITE-6182?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16147052#comment-16147052
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Pavel Tupitsyn edited comment on IGNITE-6182 at 8/30/17 10:50 AM:
------------------------------------------------------------------

[~gvvinblade] .NET is not updated, and {{IgniteConfigurationTest.TestSpringXml}} fails because
of this. Make sure .NET suites are all green.

See {{MemoryPolicyConfiguration.DefaultMaxSize}}.


was (Author: ptupitsyn):
[~gvvinblade] .NET is not updated, and {{IgniteConfigurationTest.TestSpringXml}} fails because
of this. Make sure .NET suites are all green.

> Change default max memory size from 80% to 20%
> ----------------------------------------------
>
>                 Key: IGNITE-6182
>                 URL: https://issues.apache.org/jira/browse/IGNITE-6182
>             Project: Ignite
>          Issue Type: Task
>          Components: general
>    Affects Versions: 2.1
>            Reporter: Vladimir Ozerov
>            Assignee: Igor Seliverstov
>            Priority: Blocker
>             Fix For: 2.2
>
>
> Currently we can allocate up to 80% of available RAM by default. It could lead to swap
with potential risk of hang.
> In order to improve user experience, we need to do the following:
> 1) Decrease default to 20% ({{MemoryConfiguration.DFLT_MEMORY_POLICY_FRACTION}})
> 2) When node starts it should sum max sizes of all memory regions plus Java's XMX. If
result is greater than 50% of total RAM, we should issue a warning about potential swap.



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